/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 21:03:53,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 21:03:53,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 21:03:53,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 21:03:53,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 21:03:53,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 21:03:53,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 21:03:53,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 21:03:53,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 21:03:53,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 21:03:53,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 21:03:53,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 21:03:53,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 21:03:53,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 21:03:53,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 21:03:53,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 21:03:53,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 21:03:53,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 21:03:53,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 21:03:53,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 21:03:53,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 21:03:53,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 21:03:53,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 21:03:53,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 21:03:53,693 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 21:03:53,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 21:03:53,694 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 21:03:53,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 21:03:53,695 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 21:03:53,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 21:03:53,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 21:03:53,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 21:03:53,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 21:03:53,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 21:03:53,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 21:03:53,705 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 21:03:53,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 21:03:53,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 21:03:53,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 21:03:53,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 21:03:53,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 21:03:53,711 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 21:03:53,751 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 21:03:53,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 21:03:53,755 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 21:03:53,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 21:03:53,756 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 21:03:53,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 21:03:53,756 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 21:03:53,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 21:03:53,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 21:03:53,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 21:03:53,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 21:03:53,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 21:03:53,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 21:03:53,759 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 21:03:53,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 21:03:53,759 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 21:03:53,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 21:03:53,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 21:03:53,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 21:03:53,760 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 21:03:53,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 21:03:53,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 21:03:53,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 21:03:53,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 21:03:53,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 21:03:53,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 21:03:53,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 21:03:53,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 21:03:53,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 21:03:53,762 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 21:03:54,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 21:03:54,085 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 21:03:54,088 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 21:03:54,090 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 21:03:54,090 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 21:03:54,091 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label54.c [2020-10-14 21:03:54,166 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f282991e0/7aef463b67b843e58945f28da7c00872/FLAGfe77590d7 [2020-10-14 21:03:54,790 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 21:03:54,791 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem11_label54.c [2020-10-14 21:03:54,809 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f282991e0/7aef463b67b843e58945f28da7c00872/FLAGfe77590d7 [2020-10-14 21:03:54,981 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f282991e0/7aef463b67b843e58945f28da7c00872 [2020-10-14 21:03:54,991 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 21:03:54,993 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 21:03:54,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 21:03:54,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 21:03:54,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 21:03:54,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:03:54" (1/1) ... [2020-10-14 21:03:55,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72514f07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:54, skipping insertion in model container [2020-10-14 21:03:55,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:03:54" (1/1) ... [2020-10-14 21:03:55,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 21:03:55,084 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 21:03:56,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 21:03:56,059 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 21:03:56,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 21:03:56,236 INFO L208 MainTranslator]: Completed translation [2020-10-14 21:03:56,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:56 WrapperNode [2020-10-14 21:03:56,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 21:03:56,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 21:03:56,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 21:03:56,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 21:03:56,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:56" (1/1) ... [2020-10-14 21:03:56,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:56" (1/1) ... [2020-10-14 21:03:56,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:56" (1/1) ... [2020-10-14 21:03:56,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:56" (1/1) ... [2020-10-14 21:03:56,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:56" (1/1) ... [2020-10-14 21:03:56,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:56" (1/1) ... [2020-10-14 21:03:56,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:56" (1/1) ... [2020-10-14 21:03:56,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 21:03:56,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 21:03:56,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 21:03:56,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 21:03:56,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:56" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 21:03:56,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 21:03:56,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 21:03:56,518 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 21:03:56,519 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 21:03:56,519 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 21:03:56,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 21:03:56,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 21:03:56,520 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 21:03:56,521 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 21:03:56,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 21:03:56,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 21:03:58,537 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 21:03:58,538 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 21:03:58,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:03:58 BoogieIcfgContainer [2020-10-14 21:03:58,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 21:03:58,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 21:03:58,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 21:03:58,558 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 21:03:58,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:03:54" (1/3) ... [2020-10-14 21:03:58,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fbb20bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:03:58, skipping insertion in model container [2020-10-14 21:03:58,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:03:56" (2/3) ... [2020-10-14 21:03:58,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fbb20bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:03:58, skipping insertion in model container [2020-10-14 21:03:58,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:03:58" (3/3) ... [2020-10-14 21:03:58,565 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem11_label54.c [2020-10-14 21:03:58,577 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 21:03:58,590 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 21:03:58,609 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 21:03:58,679 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 21:03:58,680 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 21:03:58,680 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 21:03:58,680 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 21:03:58,681 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 21:03:58,681 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 21:03:58,681 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 21:03:58,681 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 21:03:58,715 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states. [2020-10-14 21:03:58,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-14 21:03:58,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:03:58,729 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] [2020-10-14 21:03:58,729 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:03:58,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:03:58,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1043442102, now seen corresponding path program 1 times [2020-10-14 21:03:58,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:03:58,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1800276754] [2020-10-14 21:03:58,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:03:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:58,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:59,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:59,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 21:03:59,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:59,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 420 [2020-10-14 21:03:59,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:59,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:59,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:03:59,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:03:59,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 21:03:59,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 21:03:59,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:03:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:03:59,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:03:59,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:03:59,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:03:59,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:03:59,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 21:03:59,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:03:59,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:03:59,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:03:59,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:03:59,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:03:59,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:03:59,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:03:59,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1800276754] [2020-10-14 21:03:59,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:03:59,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 21:03:59,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703235486] [2020-10-14 21:03:59,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:03:59,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:03:59,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:03:59,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:03:59,566 INFO L87 Difference]: Start difference. First operand 292 states. Second operand 5 states. [2020-10-14 21:04:02,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:04:02,174 INFO L93 Difference]: Finished difference Result 793 states and 1394 transitions. [2020-10-14 21:04:02,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:04:02,177 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2020-10-14 21:04:02,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:04:02,218 INFO L225 Difference]: With dead ends: 793 [2020-10-14 21:04:02,218 INFO L226 Difference]: Without dead ends: 437 [2020-10-14 21:04:02,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:04:02,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-10-14 21:04:02,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 422. [2020-10-14 21:04:02,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-10-14 21:04:02,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 673 transitions. [2020-10-14 21:04:02,373 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 673 transitions. Word has length 43 [2020-10-14 21:04:02,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:04:02,373 INFO L479 AbstractCegarLoop]: Abstraction has 422 states and 673 transitions. [2020-10-14 21:04:02,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:04:02,374 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 673 transitions. [2020-10-14 21:04:02,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 21:04:02,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:04:02,379 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:04:02,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 21:04:02,380 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:04:02,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:04:02,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1726647537, now seen corresponding path program 1 times [2020-10-14 21:04:02,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:04:02,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536789061] [2020-10-14 21:04:02,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:04:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:02,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:02,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:03,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:04,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:04,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 21:04:04,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:04:04,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1673 [2020-10-14 21:04:04,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:04,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:04,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:04:04,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:04:04,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 21:04:04,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:04:04,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:04:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:04,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:04,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:04,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:04:04,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:04,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 21:04:04,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:04,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:04,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:04:04,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:04,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:04:04,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:04,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:04:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:04,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:04,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:04,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 21:04:04,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:04,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-14 21:04:04,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:04,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:04,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:04,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:04:04,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 21:04:04,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-14 21:04:04,510 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:04:04,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536789061] [2020-10-14 21:04:04,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:04:04,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 21:04:04,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64548923] [2020-10-14 21:04:04,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:04:04,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:04:04,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:04:04,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:04:04,515 INFO L87 Difference]: Start difference. First operand 422 states and 673 transitions. Second operand 8 states. [2020-10-14 21:04:07,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:04:07,835 INFO L93 Difference]: Finished difference Result 1269 states and 2064 transitions. [2020-10-14 21:04:07,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 21:04:07,838 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 112 [2020-10-14 21:04:07,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:04:07,844 INFO L225 Difference]: With dead ends: 1269 [2020-10-14 21:04:07,844 INFO L226 Difference]: Without dead ends: 853 [2020-10-14 21:04:07,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-14 21:04:07,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2020-10-14 21:04:07,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 820. [2020-10-14 21:04:07,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 820 states. [2020-10-14 21:04:07,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1222 transitions. [2020-10-14 21:04:07,891 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1222 transitions. Word has length 112 [2020-10-14 21:04:07,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:04:07,891 INFO L479 AbstractCegarLoop]: Abstraction has 820 states and 1222 transitions. [2020-10-14 21:04:07,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:04:07,892 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1222 transitions. [2020-10-14 21:04:07,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-14 21:04:07,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:04:07,895 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:04:07,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 21:04:07,896 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:04:07,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:04:07,896 INFO L82 PathProgramCache]: Analyzing trace with hash 2051275321, now seen corresponding path program 1 times [2020-10-14 21:04:07,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:04:07,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102721567] [2020-10-14 21:04:07,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:04:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:07,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:08,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:09,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:09,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 21:04:09,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:04:09,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1124 [2020-10-14 21:04:09,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:09,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:09,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:04:09,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:04:09,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 21:04:09,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:09,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:04:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:09,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:09,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:09,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:04:09,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:09,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 21:04:09,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:09,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:09,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:04:09,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:09,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:04:09,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:09,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:04:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:09,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:09,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:09,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:04:09,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:09,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-14 21:04:09,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:09,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:09,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:09,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:04:09,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:04:09,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:09,476 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:04:09,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102721567] [2020-10-14 21:04:09,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:04:09,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 21:04:09,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047784224] [2020-10-14 21:04:09,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:04:09,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:04:09,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:04:09,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:04:09,479 INFO L87 Difference]: Start difference. First operand 820 states and 1222 transitions. Second operand 7 states. [2020-10-14 21:04:12,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:04:12,005 INFO L93 Difference]: Finished difference Result 2083 states and 3145 transitions. [2020-10-14 21:04:12,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 21:04:12,006 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2020-10-14 21:04:12,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:04:12,017 INFO L225 Difference]: With dead ends: 2083 [2020-10-14 21:04:12,018 INFO L226 Difference]: Without dead ends: 1269 [2020-10-14 21:04:12,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 21:04:12,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2020-10-14 21:04:12,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1035. [2020-10-14 21:04:12,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2020-10-14 21:04:12,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1487 transitions. [2020-10-14 21:04:12,084 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1487 transitions. Word has length 116 [2020-10-14 21:04:12,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:04:12,084 INFO L479 AbstractCegarLoop]: Abstraction has 1035 states and 1487 transitions. [2020-10-14 21:04:12,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:04:12,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1487 transitions. [2020-10-14 21:04:12,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-14 21:04:12,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:04:12,091 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:04:12,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 21:04:12,091 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:04:12,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:04:12,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1679634383, now seen corresponding path program 1 times [2020-10-14 21:04:12,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:04:12,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1440378167] [2020-10-14 21:04:12,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:04:12,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:12,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:12,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:13,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:13,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-14 21:04:13,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:04:13,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1064 [2020-10-14 21:04:13,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:13,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:13,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 21:04:13,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:04:13,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 191 [2020-10-14 21:04:13,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:13,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:04:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:13,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:13,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:13,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:04:13,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:13,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 21:04:13,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:13,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:13,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:04:13,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:13,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:04:13,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:13,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:04:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:13,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:13,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:13,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:13,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 21:04:13,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:04:13,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 532 [2020-10-14 21:04:13,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:13,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:13,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:13,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:04:13,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 21:04:13,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:04:14,039 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 21:04:14,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1440378167] [2020-10-14 21:04:14,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:04:14,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 21:04:14,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206226678] [2020-10-14 21:04:14,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:04:14,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:04:14,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:04:14,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:04:14,045 INFO L87 Difference]: Start difference. First operand 1035 states and 1487 transitions. Second operand 7 states. [2020-10-14 21:04:16,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:04:16,587 INFO L93 Difference]: Finished difference Result 3103 states and 4676 transitions. [2020-10-14 21:04:16,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:04:16,590 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 187 [2020-10-14 21:04:16,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:04:16,606 INFO L225 Difference]: With dead ends: 3103 [2020-10-14 21:04:16,607 INFO L226 Difference]: Without dead ends: 2074 [2020-10-14 21:04:16,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:04:16,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2074 states. [2020-10-14 21:04:16,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2074 to 2037. [2020-10-14 21:04:16,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2037 states. [2020-10-14 21:04:16,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2037 states to 2037 states and 2742 transitions. [2020-10-14 21:04:16,699 INFO L78 Accepts]: Start accepts. Automaton has 2037 states and 2742 transitions. Word has length 187 [2020-10-14 21:04:16,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:04:16,702 INFO L479 AbstractCegarLoop]: Abstraction has 2037 states and 2742 transitions. [2020-10-14 21:04:16,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:04:16,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2037 states and 2742 transitions. [2020-10-14 21:04:16,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-14 21:04:16,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:04:16,709 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:04:16,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 21:04:16,710 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:04:16,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:04:16,710 INFO L82 PathProgramCache]: Analyzing trace with hash 856127755, now seen corresponding path program 1 times [2020-10-14 21:04:16,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:04:16,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [378027100] [2020-10-14 21:04:16,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:04:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:16,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:17,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:17,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:17,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:19,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:19,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 21:04:19,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:04:19,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2949 [2020-10-14 21:04:19,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:19,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:19,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 21:04:19,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:04:19,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 193 [2020-10-14 21:04:19,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:19,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:04:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:19,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:19,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:19,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:04:19,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:19,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 21:04:19,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:19,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:19,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:04:19,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:19,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:04:19,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:19,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:04:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:19,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:20,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:20,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:04:20,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:20,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-14 21:04:20,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:20,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:20,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:20,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:04:20,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 21:04:20,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:20,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:04:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:20,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:20,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:20,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 21:04:20,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:20,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-14 21:04:20,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:20,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:20,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:20,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:04:20,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 21:04:20,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:20,406 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 73 proven. 64 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 21:04:20,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [378027100] [2020-10-14 21:04:20,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:04:20,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:04:20,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941901574] [2020-10-14 21:04:20,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:04:20,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:04:20,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:04:20,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:04:20,409 INFO L87 Difference]: Start difference. First operand 2037 states and 2742 transitions. Second operand 8 states. [2020-10-14 21:04:23,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:04:23,300 INFO L93 Difference]: Finished difference Result 5128 states and 7254 transitions. [2020-10-14 21:04:23,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:04:23,300 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 228 [2020-10-14 21:04:23,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:04:23,319 INFO L225 Difference]: With dead ends: 5128 [2020-10-14 21:04:23,319 INFO L226 Difference]: Without dead ends: 3285 [2020-10-14 21:04:23,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:04:23,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3285 states. [2020-10-14 21:04:23,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3285 to 3025. [2020-10-14 21:04:23,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3025 states. [2020-10-14 21:04:23,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3025 states to 3025 states and 3987 transitions. [2020-10-14 21:04:23,434 INFO L78 Accepts]: Start accepts. Automaton has 3025 states and 3987 transitions. Word has length 228 [2020-10-14 21:04:23,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:04:23,435 INFO L479 AbstractCegarLoop]: Abstraction has 3025 states and 3987 transitions. [2020-10-14 21:04:23,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:04:23,435 INFO L276 IsEmpty]: Start isEmpty. Operand 3025 states and 3987 transitions. [2020-10-14 21:04:23,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-10-14 21:04:23,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:04:23,442 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:04:23,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 21:04:23,443 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:04:23,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:04:23,443 INFO L82 PathProgramCache]: Analyzing trace with hash -947902160, now seen corresponding path program 1 times [2020-10-14 21:04:23,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:04:23,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [158304916] [2020-10-14 21:04:23,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:04:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:23,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:23,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:24,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:24,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:24,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-10-14 21:04:24,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:04:24,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1213 [2020-10-14 21:04:24,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:24,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:24,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:24,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-14 21:04:24,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 21:04:24,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:24,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:04:24,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:24,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:24,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:24,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:04:24,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:24,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 21:04:24,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:24,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:24,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:04:24,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:24,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:04:24,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:24,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:04:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:24,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:24,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:24,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:04:24,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:24,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 21:04:24,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:24,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:24,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:04:24,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:24,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 21:04:24,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:24,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:04:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:25,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:25,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:25,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 21:04:25,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:25,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-14 21:04:25,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:25,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:25,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:25,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:04:25,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 21:04:25,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:25,255 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 141 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 21:04:25,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [158304916] [2020-10-14 21:04:25,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:04:25,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:04:25,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230303454] [2020-10-14 21:04:25,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:04:25,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:04:25,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:04:25,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:04:25,260 INFO L87 Difference]: Start difference. First operand 3025 states and 3987 transitions. Second operand 7 states. [2020-10-14 21:04:28,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:04:28,412 INFO L93 Difference]: Finished difference Result 5526 states and 7420 transitions. [2020-10-14 21:04:28,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:04:28,413 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 231 [2020-10-14 21:04:28,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:04:28,430 INFO L225 Difference]: With dead ends: 5526 [2020-10-14 21:04:28,430 INFO L226 Difference]: Without dead ends: 3081 [2020-10-14 21:04:28,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:04:28,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3081 states. [2020-10-14 21:04:28,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3081 to 3053. [2020-10-14 21:04:28,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3053 states. [2020-10-14 21:04:28,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3053 states to 3053 states and 3895 transitions. [2020-10-14 21:04:28,577 INFO L78 Accepts]: Start accepts. Automaton has 3053 states and 3895 transitions. Word has length 231 [2020-10-14 21:04:28,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:04:28,578 INFO L479 AbstractCegarLoop]: Abstraction has 3053 states and 3895 transitions. [2020-10-14 21:04:28,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:04:28,579 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states and 3895 transitions. [2020-10-14 21:04:28,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-10-14 21:04:28,583 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:04:28,584 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:04:28,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 21:04:28,584 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:04:28,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:04:28,585 INFO L82 PathProgramCache]: Analyzing trace with hash -679917229, now seen corresponding path program 1 times [2020-10-14 21:04:28,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:04:28,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699464766] [2020-10-14 21:04:28,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:04:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:28,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:28,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:28,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:30,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:30,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 21:04:30,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:04:30,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2327 [2020-10-14 21:04:30,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:30,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:30,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 21:04:30,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:04:30,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 209 [2020-10-14 21:04:30,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:31,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:04:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:31,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:31,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:31,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:04:31,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:31,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 21:04:31,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:31,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:31,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:04:31,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:31,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:04:31,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:31,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:04:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:31,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:31,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:31,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:04:31,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:31,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-14 21:04:31,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:31,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:31,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:31,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:04:31,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 21:04:31,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 21:04:31,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:04:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:31,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:31,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:31,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:04:31,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:31,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-14 21:04:31,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:31,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:31,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:04:31,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:04:31,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:04:31,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:31,822 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 58 proven. 17 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-14 21:04:31,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699464766] [2020-10-14 21:04:31,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:04:31,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:04:31,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370965304] [2020-10-14 21:04:31,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:04:31,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:04:31,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:04:31,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:04:31,826 INFO L87 Difference]: Start difference. First operand 3053 states and 3895 transitions. Second operand 8 states. [2020-10-14 21:04:35,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:04:35,038 INFO L93 Difference]: Finished difference Result 7191 states and 9542 transitions. [2020-10-14 21:04:35,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 21:04:35,042 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 232 [2020-10-14 21:04:35,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:04:35,064 INFO L225 Difference]: With dead ends: 7191 [2020-10-14 21:04:35,065 INFO L226 Difference]: Without dead ends: 4510 [2020-10-14 21:04:35,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-10-14 21:04:35,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4510 states. [2020-10-14 21:04:35,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4510 to 4242. [2020-10-14 21:04:35,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4242 states. [2020-10-14 21:04:35,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4242 states to 4242 states and 5331 transitions. [2020-10-14 21:04:35,194 INFO L78 Accepts]: Start accepts. Automaton has 4242 states and 5331 transitions. Word has length 232 [2020-10-14 21:04:35,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:04:35,195 INFO L479 AbstractCegarLoop]: Abstraction has 4242 states and 5331 transitions. [2020-10-14 21:04:35,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:04:35,195 INFO L276 IsEmpty]: Start isEmpty. Operand 4242 states and 5331 transitions. [2020-10-14 21:04:35,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-14 21:04:35,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:04:35,201 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:04:35,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 21:04:35,202 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:04:35,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:04:35,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1337873177, now seen corresponding path program 1 times [2020-10-14 21:04:35,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:04:35,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1193780462] [2020-10-14 21:04:35,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:04:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:35,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:35,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:36,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:37,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:37,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 21:04:37,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:04:37,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2007 [2020-10-14 21:04:37,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:37,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:37,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:37,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 21:04:37,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 21:04:37,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:37,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:04:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:37,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:37,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:37,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:04:37,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:37,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:04:37,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:37,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:37,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:04:37,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:37,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:04:37,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:37,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:04:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:37,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:37,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:37,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:04:37,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:37,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 21:04:37,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:37,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:37,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:04:37,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:37,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 21:04:37,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:37,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:04:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:37,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:37,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:37,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 21:04:37,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:37,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 21:04:37,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:37,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:37,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:37,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:04:37,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 21:04:37,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:04:37,775 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 138 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 21:04:37,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1193780462] [2020-10-14 21:04:37,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:04:37,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:04:37,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444366931] [2020-10-14 21:04:37,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:04:37,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:04:37,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:04:37,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:04:37,779 INFO L87 Difference]: Start difference. First operand 4242 states and 5331 transitions. Second operand 7 states. [2020-10-14 21:04:42,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:04:42,010 INFO L93 Difference]: Finished difference Result 10719 states and 13975 transitions. [2020-10-14 21:04:42,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:04:42,013 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 243 [2020-10-14 21:04:42,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:04:42,044 INFO L225 Difference]: With dead ends: 10719 [2020-10-14 21:04:42,044 INFO L226 Difference]: Without dead ends: 6861 [2020-10-14 21:04:42,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:04:42,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6861 states. [2020-10-14 21:04:42,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6861 to 6829. [2020-10-14 21:04:42,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6829 states. [2020-10-14 21:04:42,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6829 states to 6829 states and 8534 transitions. [2020-10-14 21:04:42,262 INFO L78 Accepts]: Start accepts. Automaton has 6829 states and 8534 transitions. Word has length 243 [2020-10-14 21:04:42,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:04:42,262 INFO L479 AbstractCegarLoop]: Abstraction has 6829 states and 8534 transitions. [2020-10-14 21:04:42,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:04:42,263 INFO L276 IsEmpty]: Start isEmpty. Operand 6829 states and 8534 transitions. [2020-10-14 21:04:42,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-14 21:04:42,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:04:42,272 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:04:42,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 21:04:42,273 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:04:42,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:04:42,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1443337119, now seen corresponding path program 1 times [2020-10-14 21:04:42,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:04:42,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580202658] [2020-10-14 21:04:42,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:04:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:42,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:42,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:43,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:43,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-10-14 21:04:43,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:04:43,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1105 [2020-10-14 21:04:43,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:43,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:43,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:43,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 21:04:43,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 21:04:43,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:43,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:04:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:43,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:43,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:43,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:04:43,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:43,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:04:43,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:43,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:43,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:04:43,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:43,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:04:43,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:43,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:04:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:43,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:43,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:43,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:04:43,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:43,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 21:04:43,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:43,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:43,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:04:43,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:43,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 21:04:43,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:43,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:04:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:43,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:43,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:43,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:04:43,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:43,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 21:04:43,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:43,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:43,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:43,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:04:43,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:04:43,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:44,084 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 21:04:44,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580202658] [2020-10-14 21:04:44,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:04:44,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:04:44,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524077410] [2020-10-14 21:04:44,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:04:44,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:04:44,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:04:44,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:04:44,095 INFO L87 Difference]: Start difference. First operand 6829 states and 8534 transitions. Second operand 7 states. [2020-10-14 21:04:47,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:04:47,065 INFO L93 Difference]: Finished difference Result 12512 states and 15812 transitions. [2020-10-14 21:04:47,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:04:47,067 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 247 [2020-10-14 21:04:47,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:04:47,111 INFO L225 Difference]: With dead ends: 12512 [2020-10-14 21:04:47,112 INFO L226 Difference]: Without dead ends: 7636 [2020-10-14 21:04:47,126 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:04:47,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7636 states. [2020-10-14 21:04:47,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7636 to 7601. [2020-10-14 21:04:47,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7601 states. [2020-10-14 21:04:47,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7601 states to 7601 states and 9417 transitions. [2020-10-14 21:04:47,354 INFO L78 Accepts]: Start accepts. Automaton has 7601 states and 9417 transitions. Word has length 247 [2020-10-14 21:04:47,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:04:47,354 INFO L479 AbstractCegarLoop]: Abstraction has 7601 states and 9417 transitions. [2020-10-14 21:04:47,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:04:47,355 INFO L276 IsEmpty]: Start isEmpty. Operand 7601 states and 9417 transitions. [2020-10-14 21:04:47,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-10-14 21:04:47,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:04:47,363 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:04:47,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 21:04:47,363 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:04:47,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:04:47,364 INFO L82 PathProgramCache]: Analyzing trace with hash -706378899, now seen corresponding path program 1 times [2020-10-14 21:04:47,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:04:47,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1362585731] [2020-10-14 21:04:47,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:04:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:47,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:47,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:48,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:48,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:48,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-10-14 21:04:48,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:04:48,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1074 [2020-10-14 21:04:48,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:48,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:48,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:04:48,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 21:04:48,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-14 21:04:48,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:48,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:04:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:48,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:48,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:48,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:04:48,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:48,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:04:48,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:48,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:48,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:04:48,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:48,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:04:48,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:48,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:04:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:48,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:48,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:48,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:04:48,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:48,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 21:04:48,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:48,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:48,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:04:48,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:48,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 21:04:48,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:48,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:04:48,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:48,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:48,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:49,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:49,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:04:49,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:04:49,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-10-14 21:04:49,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:49,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:49,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:49,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:04:49,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 21:04:49,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:49,384 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 158 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 21:04:49,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1362585731] [2020-10-14 21:04:49,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:04:49,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:04:49,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45549705] [2020-10-14 21:04:49,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:04:49,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:04:49,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:04:49,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:04:49,389 INFO L87 Difference]: Start difference. First operand 7601 states and 9417 transitions. Second operand 7 states. [2020-10-14 21:04:53,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:04:53,212 INFO L93 Difference]: Finished difference Result 20434 states and 27018 transitions. [2020-10-14 21:04:53,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 21:04:53,213 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 269 [2020-10-14 21:04:53,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:04:53,257 INFO L225 Difference]: With dead ends: 20434 [2020-10-14 21:04:53,257 INFO L226 Difference]: Without dead ends: 12654 [2020-10-14 21:04:53,279 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2020-10-14 21:04:53,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12654 states. [2020-10-14 21:04:53,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12654 to 12397. [2020-10-14 21:04:53,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12397 states. [2020-10-14 21:04:53,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12397 states to 12397 states and 15694 transitions. [2020-10-14 21:04:53,568 INFO L78 Accepts]: Start accepts. Automaton has 12397 states and 15694 transitions. Word has length 269 [2020-10-14 21:04:53,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:04:53,568 INFO L479 AbstractCegarLoop]: Abstraction has 12397 states and 15694 transitions. [2020-10-14 21:04:53,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:04:53,569 INFO L276 IsEmpty]: Start isEmpty. Operand 12397 states and 15694 transitions. [2020-10-14 21:04:53,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-10-14 21:04:53,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:04:53,579 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:04:53,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 21:04:53,580 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:04:53,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:04:53,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1211646155, now seen corresponding path program 1 times [2020-10-14 21:04:53,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:04:53,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587820644] [2020-10-14 21:04:53,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:04:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:53,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:54,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:54,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:54,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 21:04:54,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:04:54,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 982 [2020-10-14 21:04:54,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:54,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:54,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:04:54,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 255 [2020-10-14 21:04:54,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 21:04:54,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:54,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:04:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:54,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:54,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:54,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:04:54,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:54,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:04:54,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:54,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:54,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:04:54,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:54,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:04:54,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:54,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:04:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:54,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:54,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:54,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-14 21:04:54,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:54,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 21:04:54,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:54,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:54,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:04:54,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:54,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:04:54,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:54,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-14 21:04:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:54,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:55,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:04:55,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 21:04:55,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:04:55,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 21:04:55,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:04:55,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:04:55,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:04:55,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:04:55,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 21:04:55,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:04:55,117 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-14 21:04:55,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587820644] [2020-10-14 21:04:55,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:04:55,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 21:04:55,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397982823] [2020-10-14 21:04:55,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:04:55,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:04:55,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:04:55,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:04:55,122 INFO L87 Difference]: Start difference. First operand 12397 states and 15694 transitions. Second operand 5 states. [2020-10-14 21:04:57,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:04:57,642 INFO L93 Difference]: Finished difference Result 29927 states and 38560 transitions. [2020-10-14 21:04:57,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:04:57,643 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 286 [2020-10-14 21:04:57,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:04:57,702 INFO L225 Difference]: With dead ends: 29927 [2020-10-14 21:04:57,702 INFO L226 Difference]: Without dead ends: 17926 [2020-10-14 21:04:57,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:04:57,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17926 states. [2020-10-14 21:04:58,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17926 to 17707. [2020-10-14 21:04:58,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17707 states. [2020-10-14 21:04:58,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17707 states to 17707 states and 22556 transitions. [2020-10-14 21:04:58,136 INFO L78 Accepts]: Start accepts. Automaton has 17707 states and 22556 transitions. Word has length 286 [2020-10-14 21:04:58,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:04:58,137 INFO L479 AbstractCegarLoop]: Abstraction has 17707 states and 22556 transitions. [2020-10-14 21:04:58,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:04:58,137 INFO L276 IsEmpty]: Start isEmpty. Operand 17707 states and 22556 transitions. [2020-10-14 21:04:58,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-10-14 21:04:58,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:04:58,149 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:04:58,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 21:04:58,150 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:04:58,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:04:58,151 INFO L82 PathProgramCache]: Analyzing trace with hash -841485637, now seen corresponding path program 1 times [2020-10-14 21:04:58,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:04:58,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1563633318] [2020-10-14 21:04:58,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:04:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:04:58,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:58,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:59,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:59,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:04:59,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:02,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:02,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 21:05:02,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:05:02,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4347 [2020-10-14 21:05:02,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:02,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:02,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 21:05:02,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:05:02,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 295 [2020-10-14 21:05:02,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:02,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:05:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:02,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:02,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:02,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:05:02,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:02,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 21:05:02,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:02,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:02,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:02,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:02,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:05:02,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:05:02,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:05:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:02,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:02,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:03,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:03,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:05:03,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:05:03,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-10-14 21:05:03,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:03,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:03,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:03,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:03,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 21:05:03,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:05:03,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:05:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:03,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:03,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:03,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:03,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 21:05:03,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:05:03,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-14 21:05:03,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:03,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:03,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:03,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:03,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 21:05:03,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:05:03,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 21:05:03,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:03,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:03,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:03,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:05:03,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:03,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-14 21:05:03,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:03,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:03,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:05:03,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:05:03,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:05:03,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:05:03,553 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 236 proven. 10 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-14 21:05:03,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1563633318] [2020-10-14 21:05:03,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:05:03,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:05:03,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890848829] [2020-10-14 21:05:03,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:05:03,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:05:03,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:05:03,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:05:03,555 INFO L87 Difference]: Start difference. First operand 17707 states and 22556 transitions. Second operand 8 states. [2020-10-14 21:05:07,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:05:07,151 INFO L93 Difference]: Finished difference Result 34019 states and 45219 transitions. [2020-10-14 21:05:07,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 21:05:07,151 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 316 [2020-10-14 21:05:07,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:05:07,212 INFO L225 Difference]: With dead ends: 34019 [2020-10-14 21:05:07,212 INFO L226 Difference]: Without dead ends: 19360 [2020-10-14 21:05:07,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-10-14 21:05:07,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19360 states. [2020-10-14 21:05:07,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19360 to 18653. [2020-10-14 21:05:07,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18653 states. [2020-10-14 21:05:07,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18653 states to 18653 states and 23167 transitions. [2020-10-14 21:05:07,627 INFO L78 Accepts]: Start accepts. Automaton has 18653 states and 23167 transitions. Word has length 316 [2020-10-14 21:05:07,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:05:07,628 INFO L479 AbstractCegarLoop]: Abstraction has 18653 states and 23167 transitions. [2020-10-14 21:05:07,628 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:05:07,628 INFO L276 IsEmpty]: Start isEmpty. Operand 18653 states and 23167 transitions. [2020-10-14 21:05:07,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-10-14 21:05:07,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:05:07,642 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:05:07,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 21:05:07,642 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:05:07,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:05:07,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1229796476, now seen corresponding path program 1 times [2020-10-14 21:05:07,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:05:07,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [36534913] [2020-10-14 21:05:07,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:05:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:07,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:08,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:09,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:09,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 346 [2020-10-14 21:05:09,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:05:09,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2081 [2020-10-14 21:05:09,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:09,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:09,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 21:05:09,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:05:09,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 319 [2020-10-14 21:05:09,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:09,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:05:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:09,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:09,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:09,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:05:09,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:09,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 21:05:09,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:09,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:09,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:09,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:09,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:05:09,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:09,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:05:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:10,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:10,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:10,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-14 21:05:10,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:10,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-14 21:05:10,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:10,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:10,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:05:10,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:05:10,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-14 21:05:10,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:10,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-14 21:05:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:10,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:10,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:10,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 21:05:10,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:10,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-14 21:05:10,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:10,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:10,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:05:10,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:05:10,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 21:05:10,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:10,726 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 42 proven. 170 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 21:05:10,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [36534913] [2020-10-14 21:05:10,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:05:10,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:05:10,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266711856] [2020-10-14 21:05:10,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 21:05:10,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:05:10,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 21:05:10,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-14 21:05:10,729 INFO L87 Difference]: Start difference. First operand 18653 states and 23167 transitions. Second operand 9 states. [2020-10-14 21:05:13,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:05:13,815 INFO L93 Difference]: Finished difference Result 34482 states and 44274 transitions. [2020-10-14 21:05:13,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:05:13,816 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 334 [2020-10-14 21:05:13,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:05:13,882 INFO L225 Difference]: With dead ends: 34482 [2020-10-14 21:05:13,882 INFO L226 Difference]: Without dead ends: 18889 [2020-10-14 21:05:13,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-14 21:05:13,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18889 states. [2020-10-14 21:05:14,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18889 to 18667. [2020-10-14 21:05:14,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18667 states. [2020-10-14 21:05:14,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18667 states to 18667 states and 23179 transitions. [2020-10-14 21:05:14,335 INFO L78 Accepts]: Start accepts. Automaton has 18667 states and 23179 transitions. Word has length 334 [2020-10-14 21:05:14,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:05:14,336 INFO L479 AbstractCegarLoop]: Abstraction has 18667 states and 23179 transitions. [2020-10-14 21:05:14,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 21:05:14,336 INFO L276 IsEmpty]: Start isEmpty. Operand 18667 states and 23179 transitions. [2020-10-14 21:05:14,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-10-14 21:05:14,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:05:14,352 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:05:14,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 21:05:14,352 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:05:14,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:05:14,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1143761479, now seen corresponding path program 1 times [2020-10-14 21:05:14,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:05:14,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [419257682] [2020-10-14 21:05:14,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:05:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:14,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:14,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:14,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:15,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:16,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:16,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 352 [2020-10-14 21:05:16,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:05:16,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1871 [2020-10-14 21:05:16,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:16,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:16,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:05:16,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-14 21:05:16,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 21:05:16,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:16,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:05:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:16,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:16,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:16,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:05:16,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:16,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:05:16,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:16,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:16,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:16,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:16,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:16,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:16,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:05:16,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:16,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:16,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:16,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:05:16,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:16,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:05:16,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:16,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:16,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:16,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:16,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:16,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:16,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:05:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:16,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:16,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:16,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 21:05:16,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:16,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 21:05:16,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:16,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:16,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:16,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:16,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 21:05:16,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:16,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 21:05:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:16,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:16,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:16,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:16,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:05:16,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:05:16,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-14 21:05:16,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:16,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:16,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:05:16,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:05:16,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 21:05:16,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:16,966 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 247 proven. 37 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-14 21:05:16,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [419257682] [2020-10-14 21:05:16,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:05:16,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 21:05:16,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089098745] [2020-10-14 21:05:16,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 21:05:16,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:05:16,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 21:05:16,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:05:16,968 INFO L87 Difference]: Start difference. First operand 18667 states and 23179 transitions. Second operand 6 states. [2020-10-14 21:05:20,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:05:20,043 INFO L93 Difference]: Finished difference Result 40787 states and 51386 transitions. [2020-10-14 21:05:20,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 21:05:20,044 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 338 [2020-10-14 21:05:20,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:05:20,112 INFO L225 Difference]: With dead ends: 40787 [2020-10-14 21:05:20,112 INFO L226 Difference]: Without dead ends: 25018 [2020-10-14 21:05:20,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:05:20,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25018 states. [2020-10-14 21:05:20,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25018 to 23304. [2020-10-14 21:05:20,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23304 states. [2020-10-14 21:05:20,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23304 states to 23304 states and 29228 transitions. [2020-10-14 21:05:20,600 INFO L78 Accepts]: Start accepts. Automaton has 23304 states and 29228 transitions. Word has length 338 [2020-10-14 21:05:20,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:05:20,601 INFO L479 AbstractCegarLoop]: Abstraction has 23304 states and 29228 transitions. [2020-10-14 21:05:20,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 21:05:20,601 INFO L276 IsEmpty]: Start isEmpty. Operand 23304 states and 29228 transitions. [2020-10-14 21:05:20,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-10-14 21:05:20,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:05:20,614 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:05:20,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 21:05:20,615 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:05:20,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:05:20,615 INFO L82 PathProgramCache]: Analyzing trace with hash 732332999, now seen corresponding path program 1 times [2020-10-14 21:05:20,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:05:20,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368898437] [2020-10-14 21:05:20,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:05:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:20,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:20,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:21,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:21,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:21,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:25,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:25,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 352 [2020-10-14 21:05:25,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:05:25,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4719 [2020-10-14 21:05:25,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:25,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:25,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:05:25,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-14 21:05:25,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 21:05:25,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:05:25,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:05:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:25,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:25,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:25,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:05:25,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:25,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:05:25,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:25,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:25,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:25,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:25,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:25,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:25,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:05:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:25,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:25,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:25,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 21:05:25,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:25,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:05:25,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:25,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:25,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:25,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:25,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:25,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:25,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 21:05:25,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:25,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:25,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:25,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 21:05:25,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:25,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 21:05:25,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:25,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:25,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:25,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:25,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 21:05:25,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:25,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 21:05:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:25,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:25,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:25,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:25,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:05:25,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:05:25,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 21:05:25,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:25,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:25,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:05:25,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:05:25,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 21:05:25,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:25,866 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 237 proven. 37 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-10-14 21:05:25,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368898437] [2020-10-14 21:05:25,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:05:25,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:05:25,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416614073] [2020-10-14 21:05:25,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:05:25,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:05:25,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:05:25,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:05:25,868 INFO L87 Difference]: Start difference. First operand 23304 states and 29228 transitions. Second operand 7 states. [2020-10-14 21:05:29,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:05:29,245 INFO L93 Difference]: Finished difference Result 45699 states and 57967 transitions. [2020-10-14 21:05:29,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:05:29,246 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 338 [2020-10-14 21:05:29,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:05:29,322 INFO L225 Difference]: With dead ends: 45699 [2020-10-14 21:05:29,322 INFO L226 Difference]: Without dead ends: 25483 [2020-10-14 21:05:29,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:05:29,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25483 states. [2020-10-14 21:05:29,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25483 to 23503. [2020-10-14 21:05:29,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23503 states. [2020-10-14 21:05:29,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23503 states to 23503 states and 29387 transitions. [2020-10-14 21:05:29,839 INFO L78 Accepts]: Start accepts. Automaton has 23503 states and 29387 transitions. Word has length 338 [2020-10-14 21:05:29,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:05:29,839 INFO L479 AbstractCegarLoop]: Abstraction has 23503 states and 29387 transitions. [2020-10-14 21:05:29,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:05:29,840 INFO L276 IsEmpty]: Start isEmpty. Operand 23503 states and 29387 transitions. [2020-10-14 21:05:29,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2020-10-14 21:05:29,851 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:05:29,852 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:05:29,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 21:05:29,852 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:05:29,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:05:29,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1520321955, now seen corresponding path program 1 times [2020-10-14 21:05:29,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:05:29,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [71474685] [2020-10-14 21:05:29,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:05:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:29,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:30,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:30,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:31,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:31,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 366 [2020-10-14 21:05:31,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:05:31,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1568 [2020-10-14 21:05:31,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:31,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:31,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:05:31,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-14 21:05:31,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 21:05:31,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:05:31,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:05:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:31,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:31,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:31,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:05:31,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:31,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:05:31,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:31,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:31,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:31,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:31,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:31,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:31,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:05:31,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:31,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:31,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:31,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:05:31,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:31,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 21:05:31,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:31,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:31,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:31,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:31,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:31,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:31,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:05:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:31,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:31,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:31,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 21:05:31,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:31,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 21:05:31,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:31,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:31,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:31,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:31,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 21:05:31,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:31,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 21:05:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:31,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:31,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:31,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:05:31,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:31,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-14 21:05:31,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:31,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:31,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:05:31,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:05:31,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 21:05:31,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:32,020 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 300 proven. 2 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-14 21:05:32,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [71474685] [2020-10-14 21:05:32,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:05:32,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:05:32,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377831746] [2020-10-14 21:05:32,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:05:32,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:05:32,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:05:32,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:05:32,022 INFO L87 Difference]: Start difference. First operand 23503 states and 29387 transitions. Second operand 7 states. [2020-10-14 21:05:35,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:05:35,201 INFO L93 Difference]: Finished difference Result 48042 states and 60430 transitions. [2020-10-14 21:05:35,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:05:35,202 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 352 [2020-10-14 21:05:35,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:05:35,262 INFO L225 Difference]: With dead ends: 48042 [2020-10-14 21:05:35,263 INFO L226 Difference]: Without dead ends: 24921 [2020-10-14 21:05:35,297 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:05:35,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24921 states. [2020-10-14 21:05:35,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24921 to 23549. [2020-10-14 21:05:35,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23549 states. [2020-10-14 21:05:35,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23549 states to 23549 states and 28735 transitions. [2020-10-14 21:05:35,702 INFO L78 Accepts]: Start accepts. Automaton has 23549 states and 28735 transitions. Word has length 352 [2020-10-14 21:05:35,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:05:35,703 INFO L479 AbstractCegarLoop]: Abstraction has 23549 states and 28735 transitions. [2020-10-14 21:05:35,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:05:35,703 INFO L276 IsEmpty]: Start isEmpty. Operand 23549 states and 28735 transitions. [2020-10-14 21:05:35,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2020-10-14 21:05:35,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:05:35,716 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:05:35,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 21:05:35,716 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:05:35,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:05:35,716 INFO L82 PathProgramCache]: Analyzing trace with hash -2073434812, now seen corresponding path program 1 times [2020-10-14 21:05:35,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:05:35,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357074935] [2020-10-14 21:05:35,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:05:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:35,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:35,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:36,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:37,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:38,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:38,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 369 [2020-10-14 21:05:38,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:05:38,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3081 [2020-10-14 21:05:38,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:38,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:38,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:05:38,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-14 21:05:38,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 21:05:38,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:38,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:05:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:38,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:38,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:38,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:05:38,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:38,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 21:05:38,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:38,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:38,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:38,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:38,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:38,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:38,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:05:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:38,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:38,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:38,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:05:38,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:38,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:05:38,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:38,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:38,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:38,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:38,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:38,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:39,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:05:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:39,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:39,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:39,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 21:05:39,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:39,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 21:05:39,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:39,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:39,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:39,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:39,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 21:05:39,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:39,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-14 21:05:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:39,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:39,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:39,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:05:39,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:39,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 21:05:39,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:39,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:39,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:05:39,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:05:39,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 21:05:39,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:39,279 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 297 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-14 21:05:39,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357074935] [2020-10-14 21:05:39,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:05:39,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:05:39,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441839078] [2020-10-14 21:05:39,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:05:39,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:05:39,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:05:39,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:05:39,281 INFO L87 Difference]: Start difference. First operand 23549 states and 28735 transitions. Second operand 7 states. [2020-10-14 21:05:42,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:05:42,621 INFO L93 Difference]: Finished difference Result 45824 states and 56345 transitions. [2020-10-14 21:05:42,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:05:42,622 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 355 [2020-10-14 21:05:42,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:05:42,670 INFO L225 Difference]: With dead ends: 45824 [2020-10-14 21:05:42,671 INFO L226 Difference]: Without dead ends: 25359 [2020-10-14 21:05:42,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:05:42,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25359 states. [2020-10-14 21:05:43,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25359 to 23359. [2020-10-14 21:05:43,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23359 states. [2020-10-14 21:05:43,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23359 states to 23359 states and 28491 transitions. [2020-10-14 21:05:43,074 INFO L78 Accepts]: Start accepts. Automaton has 23359 states and 28491 transitions. Word has length 355 [2020-10-14 21:05:43,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:05:43,075 INFO L479 AbstractCegarLoop]: Abstraction has 23359 states and 28491 transitions. [2020-10-14 21:05:43,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:05:43,075 INFO L276 IsEmpty]: Start isEmpty. Operand 23359 states and 28491 transitions. [2020-10-14 21:05:43,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2020-10-14 21:05:43,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:05:43,086 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:05:43,086 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 21:05:43,087 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:05:43,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:05:43,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1251361248, now seen corresponding path program 1 times [2020-10-14 21:05:43,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:05:43,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [163424475] [2020-10-14 21:05:43,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:05:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:43,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:43,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:43,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:44,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:46,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:46,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 383 [2020-10-14 21:05:46,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:05:46,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3326 [2020-10-14 21:05:46,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:46,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:46,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:05:46,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-14 21:05:46,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 21:05:46,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:46,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:05:46,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:46,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:46,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:46,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:05:46,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:46,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 21:05:46,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:46,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:46,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:46,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:46,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:46,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:46,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:05:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:46,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:46,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:46,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:05:46,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:46,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 21:05:46,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:46,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:46,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:05:46,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:46,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:05:46,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:46,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:05:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:46,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:46,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:46,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 21:05:46,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:46,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 21:05:46,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:46,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:46,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:46,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:46,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 21:05:46,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:46,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-14 21:05:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:46,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:46,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:46,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:05:46,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:46,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-14 21:05:46,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:46,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:46,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:05:46,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:05:46,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 21:05:46,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:47,122 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 317 proven. 2 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-14 21:05:47,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [163424475] [2020-10-14 21:05:47,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:05:47,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:05:47,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77035908] [2020-10-14 21:05:47,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:05:47,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:05:47,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:05:47,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:05:47,125 INFO L87 Difference]: Start difference. First operand 23359 states and 28491 transitions. Second operand 7 states. [2020-10-14 21:05:50,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:05:50,347 INFO L93 Difference]: Finished difference Result 43464 states and 53203 transitions. [2020-10-14 21:05:50,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 21:05:50,348 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 369 [2020-10-14 21:05:50,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:05:50,385 INFO L225 Difference]: With dead ends: 43464 [2020-10-14 21:05:50,385 INFO L226 Difference]: Without dead ends: 22186 [2020-10-14 21:05:50,406 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:05:50,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22186 states. [2020-10-14 21:05:50,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22186 to 21952. [2020-10-14 21:05:50,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21952 states. [2020-10-14 21:05:50,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21952 states to 21952 states and 26084 transitions. [2020-10-14 21:05:50,782 INFO L78 Accepts]: Start accepts. Automaton has 21952 states and 26084 transitions. Word has length 369 [2020-10-14 21:05:50,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:05:50,782 INFO L479 AbstractCegarLoop]: Abstraction has 21952 states and 26084 transitions. [2020-10-14 21:05:50,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:05:50,782 INFO L276 IsEmpty]: Start isEmpty. Operand 21952 states and 26084 transitions. [2020-10-14 21:05:50,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2020-10-14 21:05:50,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:05:50,793 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:05:50,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 21:05:50,793 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:05:50,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:05:50,794 INFO L82 PathProgramCache]: Analyzing trace with hash 567152187, now seen corresponding path program 1 times [2020-10-14 21:05:50,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:05:50,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [210103405] [2020-10-14 21:05:50,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:05:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:50,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:51,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:51,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:53,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:55,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:55,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 386 [2020-10-14 21:05:55,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:05:55,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-14 21:05:55,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:55,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:55,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 21:05:55,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:05:55,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 296 [2020-10-14 21:05:55,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:56,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:05:56,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:56,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:56,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:56,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:05:56,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:56,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:05:56,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:56,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:56,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:05:56,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:05:56,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:05:56,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:56,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:05:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:56,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:56,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:56,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 21:05:56,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:56,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 21:05:56,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:56,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:56,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:05:56,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:05:56,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 21:05:56,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:56,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 21:05:56,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:56,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:56,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:56,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:05:56,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:05:56,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 21:05:56,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:56,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:56,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:05:56,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:05:56,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 21:05:56,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:56,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-10-14 21:05:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:05:56,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:56,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:05:56,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:05:56,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:05:56,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:05:56,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-14 21:05:56,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:05:56,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:05:56,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:05:56,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:05:56,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 21:05:56,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:05:56,999 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 110 proven. 202 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2020-10-14 21:05:57,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [210103405] [2020-10-14 21:05:57,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:05:57,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 21:05:57,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992244850] [2020-10-14 21:05:57,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 21:05:57,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:05:57,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 21:05:57,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:05:57,001 INFO L87 Difference]: Start difference. First operand 21952 states and 26084 transitions. Second operand 10 states. [2020-10-14 21:06:01,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:06:01,847 INFO L93 Difference]: Finished difference Result 41484 states and 49688 transitions. [2020-10-14 21:06:01,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 21:06:01,848 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 372 [2020-10-14 21:06:01,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:06:01,884 INFO L225 Difference]: With dead ends: 41484 [2020-10-14 21:06:01,884 INFO L226 Difference]: Without dead ends: 22046 [2020-10-14 21:06:01,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2020-10-14 21:06:01,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22046 states. [2020-10-14 21:06:02,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22046 to 21946. [2020-10-14 21:06:02,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21946 states. [2020-10-14 21:06:02,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21946 states to 21946 states and 26063 transitions. [2020-10-14 21:06:02,198 INFO L78 Accepts]: Start accepts. Automaton has 21946 states and 26063 transitions. Word has length 372 [2020-10-14 21:06:02,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:06:02,199 INFO L479 AbstractCegarLoop]: Abstraction has 21946 states and 26063 transitions. [2020-10-14 21:06:02,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 21:06:02,199 INFO L276 IsEmpty]: Start isEmpty. Operand 21946 states and 26063 transitions. [2020-10-14 21:06:02,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2020-10-14 21:06:02,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:06:02,212 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:06:02,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 21:06:02,212 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:06:02,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:06:02,212 INFO L82 PathProgramCache]: Analyzing trace with hash 503278376, now seen corresponding path program 1 times [2020-10-14 21:06:02,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:06:02,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [556187191] [2020-10-14 21:06:02,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:06:02,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:02,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:02,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:04,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:04,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 413 [2020-10-14 21:06:04,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:06:04,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2374 [2020-10-14 21:06:04,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:04,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:04,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:06:04,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 21:06:04,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 21:06:04,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:04,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:06:04,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:04,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:04,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:04,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:06:04,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:04,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:06:04,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:04,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:04,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:06:04,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:06:04,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:06:04,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:04,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:06:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:04,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:04,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:04,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:06:04,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:04,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:06:04,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:04,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:04,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:06:04,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:06:04,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:06:04,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:04,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:06:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:04,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:04,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:04,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:06:04,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:04,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 21:06:04,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:04,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:04,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:06:04,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:06:04,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-14 21:06:04,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:04,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 21:06:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:04,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:05,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:05,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:06:05,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:05,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 21:06:05,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:05,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:05,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:06:05,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:06:05,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 21:06:05,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:05,201 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 325 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-14 21:06:05,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [556187191] [2020-10-14 21:06:05,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:06:05,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:06:05,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991137651] [2020-10-14 21:06:05,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:06:05,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:06:05,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:06:05,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:06:05,203 INFO L87 Difference]: Start difference. First operand 21946 states and 26063 transitions. Second operand 7 states. [2020-10-14 21:06:08,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:06:08,166 INFO L93 Difference]: Finished difference Result 43576 states and 51762 transitions. [2020-10-14 21:06:08,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:06:08,167 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 399 [2020-10-14 21:06:08,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:06:08,206 INFO L225 Difference]: With dead ends: 43576 [2020-10-14 21:06:08,206 INFO L226 Difference]: Without dead ends: 24508 [2020-10-14 21:06:08,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:06:08,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24508 states. [2020-10-14 21:06:08,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24508 to 23092. [2020-10-14 21:06:08,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23092 states. [2020-10-14 21:06:08,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23092 states to 23092 states and 27020 transitions. [2020-10-14 21:06:08,574 INFO L78 Accepts]: Start accepts. Automaton has 23092 states and 27020 transitions. Word has length 399 [2020-10-14 21:06:08,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:06:08,575 INFO L479 AbstractCegarLoop]: Abstraction has 23092 states and 27020 transitions. [2020-10-14 21:06:08,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:06:08,575 INFO L276 IsEmpty]: Start isEmpty. Operand 23092 states and 27020 transitions. [2020-10-14 21:06:08,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2020-10-14 21:06:08,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:06:08,593 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:06:08,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 21:06:08,593 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:06:08,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:06:08,594 INFO L82 PathProgramCache]: Analyzing trace with hash 29463479, now seen corresponding path program 1 times [2020-10-14 21:06:08,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:06:08,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [66555739] [2020-10-14 21:06:08,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:06:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:08,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:08,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:10,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:10,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 435 [2020-10-14 21:06:10,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:06:10,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1713 [2020-10-14 21:06:10,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:10,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:10,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:06:10,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 281 [2020-10-14 21:06:10,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 21:06:10,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:10,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:06:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:10,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:10,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:10,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:06:10,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:10,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:06:10,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:10,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:10,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:06:10,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:06:10,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:06:10,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:10,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:06:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:10,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:10,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:10,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:06:10,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:10,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 21:06:10,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:10,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:10,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:06:10,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:06:10,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:06:10,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:10,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:06:10,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:10,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:10,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:10,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 21:06:10,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:10,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 21:06:10,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:10,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:10,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:06:10,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:06:10,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 21:06:10,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:10,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2020-10-14 21:06:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:10,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:10,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:10,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:06:10,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:10,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 21:06:10,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:10,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:10,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:06:10,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:06:10,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 21:06:10,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:10,996 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 325 proven. 2 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2020-10-14 21:06:10,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [66555739] [2020-10-14 21:06:10,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:06:10,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:06:10,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860497696] [2020-10-14 21:06:10,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:06:10,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:06:10,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:06:10,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:06:10,998 INFO L87 Difference]: Start difference. First operand 23092 states and 27020 transitions. Second operand 7 states. [2020-10-14 21:06:14,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:06:14,452 INFO L93 Difference]: Finished difference Result 42773 states and 50271 transitions. [2020-10-14 21:06:14,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:06:14,453 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 421 [2020-10-14 21:06:14,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:06:14,493 INFO L225 Difference]: With dead ends: 42773 [2020-10-14 21:06:14,493 INFO L226 Difference]: Without dead ends: 23145 [2020-10-14 21:06:14,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:06:14,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23145 states. [2020-10-14 21:06:14,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23145 to 23092. [2020-10-14 21:06:14,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23092 states. [2020-10-14 21:06:14,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23092 states to 23092 states and 26992 transitions. [2020-10-14 21:06:14,769 INFO L78 Accepts]: Start accepts. Automaton has 23092 states and 26992 transitions. Word has length 421 [2020-10-14 21:06:14,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:06:14,769 INFO L479 AbstractCegarLoop]: Abstraction has 23092 states and 26992 transitions. [2020-10-14 21:06:14,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:06:14,770 INFO L276 IsEmpty]: Start isEmpty. Operand 23092 states and 26992 transitions. [2020-10-14 21:06:14,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2020-10-14 21:06:14,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:06:14,781 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:06:14,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 21:06:14,782 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:06:14,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:06:14,782 INFO L82 PathProgramCache]: Analyzing trace with hash 99261132, now seen corresponding path program 1 times [2020-10-14 21:06:14,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:06:14,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [545940180] [2020-10-14 21:06:14,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:06:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:14,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:14,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:15,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:17,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:17,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 436 [2020-10-14 21:06:17,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:06:17,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2262 [2020-10-14 21:06:17,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:17,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:17,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 21:06:17,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 247 [2020-10-14 21:06:17,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 188 [2020-10-14 21:06:17,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:17,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:06:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:17,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:17,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:17,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:06:17,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:17,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:06:17,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:17,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:17,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:06:17,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:06:17,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:06:17,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:17,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:06:17,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:17,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:17,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:17,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 21:06:17,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:17,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:06:17,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:17,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:17,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:06:17,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:06:17,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:06:17,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:17,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 21:06:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:17,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:17,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:17,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:06:17,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:17,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 21:06:17,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:17,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:17,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:06:17,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:06:17,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 21:06:17,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:17,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2020-10-14 21:06:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:17,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:17,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:17,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 21:06:17,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:17,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-14 21:06:17,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:17,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:17,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:06:17,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:06:17,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 21:06:17,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:17,922 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 307 proven. 37 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-10-14 21:06:17,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [545940180] [2020-10-14 21:06:17,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:06:17,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:06:17,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533648734] [2020-10-14 21:06:17,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:06:17,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:06:17,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:06:17,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:06:17,929 INFO L87 Difference]: Start difference. First operand 23092 states and 26992 transitions. Second operand 8 states. [2020-10-14 21:06:22,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:06:22,656 INFO L93 Difference]: Finished difference Result 54344 states and 63587 transitions. [2020-10-14 21:06:22,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 21:06:22,663 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 422 [2020-10-14 21:06:22,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:06:22,723 INFO L225 Difference]: With dead ends: 54344 [2020-10-14 21:06:22,724 INFO L226 Difference]: Without dead ends: 34142 [2020-10-14 21:06:22,749 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-14 21:06:22,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34142 states. [2020-10-14 21:06:23,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34142 to 31951. [2020-10-14 21:06:23,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31951 states. [2020-10-14 21:06:23,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31951 states to 31951 states and 36910 transitions. [2020-10-14 21:06:23,118 INFO L78 Accepts]: Start accepts. Automaton has 31951 states and 36910 transitions. Word has length 422 [2020-10-14 21:06:23,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:06:23,118 INFO L479 AbstractCegarLoop]: Abstraction has 31951 states and 36910 transitions. [2020-10-14 21:06:23,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:06:23,118 INFO L276 IsEmpty]: Start isEmpty. Operand 31951 states and 36910 transitions. [2020-10-14 21:06:23,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2020-10-14 21:06:23,128 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:06:23,128 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:06:23,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 21:06:23,129 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:06:23,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:06:23,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1701946036, now seen corresponding path program 1 times [2020-10-14 21:06:23,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:06:23,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [561940162] [2020-10-14 21:06:23,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:06:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:23,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:23,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:23,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:23,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:27,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:27,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 442 [2020-10-14 21:06:27,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:06:27,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4732 [2020-10-14 21:06:27,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:27,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:27,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:06:27,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-10-14 21:06:27,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-14 21:06:27,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:28,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:06:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:28,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:28,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:28,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:06:28,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:28,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:06:28,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:28,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:28,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:06:28,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:06:28,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:06:28,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:28,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:06:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:28,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:28,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:28,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-14 21:06:28,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:28,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 21:06:28,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:28,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:28,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:06:28,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:06:28,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-14 21:06:28,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:28,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-14 21:06:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:28,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:28,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:28,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 21:06:28,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:28,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-14 21:06:28,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:28,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:28,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:06:28,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:06:28,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-14 21:06:28,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:28,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2020-10-14 21:06:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:28,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:28,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:28,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:06:28,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:28,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 21:06:28,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:28,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:28,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:06:28,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-14 21:06:28,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:06:28,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:28,546 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 252 proven. 94 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2020-10-14 21:06:28,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [561940162] [2020-10-14 21:06:28,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:06:28,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:06:28,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968752232] [2020-10-14 21:06:28,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:06:28,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:06:28,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:06:28,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:06:28,548 INFO L87 Difference]: Start difference. First operand 31951 states and 36910 transitions. Second operand 7 states. [2020-10-14 21:06:32,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:06:32,258 INFO L93 Difference]: Finished difference Result 63414 states and 73235 transitions. [2020-10-14 21:06:32,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:06:32,266 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 428 [2020-10-14 21:06:32,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:06:32,332 INFO L225 Difference]: With dead ends: 63414 [2020-10-14 21:06:32,332 INFO L226 Difference]: Without dead ends: 31855 [2020-10-14 21:06:32,364 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:06:32,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31855 states. [2020-10-14 21:06:32,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31855 to 31747. [2020-10-14 21:06:32,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31747 states. [2020-10-14 21:06:32,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31747 states to 31747 states and 36450 transitions. [2020-10-14 21:06:32,722 INFO L78 Accepts]: Start accepts. Automaton has 31747 states and 36450 transitions. Word has length 428 [2020-10-14 21:06:32,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:06:32,723 INFO L479 AbstractCegarLoop]: Abstraction has 31747 states and 36450 transitions. [2020-10-14 21:06:32,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:06:32,723 INFO L276 IsEmpty]: Start isEmpty. Operand 31747 states and 36450 transitions. [2020-10-14 21:06:32,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2020-10-14 21:06:32,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:06:32,732 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:06:32,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 21:06:32,732 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:06:32,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:06:32,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1559762550, now seen corresponding path program 1 times [2020-10-14 21:06:32,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:06:32,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2044433303] [2020-10-14 21:06:32,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:06:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:32,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:32,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:32,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:33,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:33,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:33,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:34,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:34,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 456 [2020-10-14 21:06:34,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 21:06:34,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1265 [2020-10-14 21:06:34,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:34,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:34,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:06:34,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:06:34,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 297 [2020-10-14 21:06:34,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:34,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:06:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:34,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:34,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:34,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:06:34,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:34,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:06:34,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:34,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:34,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:06:34,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:06:34,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:06:34,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:34,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:06:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:34,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:34,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:34,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:34,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:06:34,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:06:34,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-14 21:06:34,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:34,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:34,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:06:34,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:06:34,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 21:06:34,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:34,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:06:34,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:34,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:34,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:34,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:34,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 21:06:34,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:06:34,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 21:06:34,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:34,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:34,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:06:34,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-10-14 21:06:34,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 21:06:34,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:34,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2020-10-14 21:06:34,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:34,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:34,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:34,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:06:34,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:34,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 21:06:34,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:34,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:34,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:06:34,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 107 [2020-10-14 21:06:34,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:06:34,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:06:34,808 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 113 proven. 6 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2020-10-14 21:06:34,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2044433303] [2020-10-14 21:06:34,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:06:34,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 21:06:34,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550773782] [2020-10-14 21:06:34,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 21:06:34,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:06:34,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 21:06:34,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:06:34,810 INFO L87 Difference]: Start difference. First operand 31747 states and 36450 transitions. Second operand 6 states. [2020-10-14 21:06:36,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:06:36,504 INFO L93 Difference]: Finished difference Result 59143 states and 67942 transitions. [2020-10-14 21:06:36,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:06:36,506 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 442 [2020-10-14 21:06:36,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:06:36,553 INFO L225 Difference]: With dead ends: 59143 [2020-10-14 21:06:36,554 INFO L226 Difference]: Without dead ends: 31052 [2020-10-14 21:06:36,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:06:36,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31052 states. [2020-10-14 21:06:36,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31052 to 30761. [2020-10-14 21:06:36,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30761 states. [2020-10-14 21:06:36,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30761 states to 30761 states and 35094 transitions. [2020-10-14 21:06:36,904 INFO L78 Accepts]: Start accepts. Automaton has 30761 states and 35094 transitions. Word has length 442 [2020-10-14 21:06:36,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:06:36,905 INFO L479 AbstractCegarLoop]: Abstraction has 30761 states and 35094 transitions. [2020-10-14 21:06:36,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 21:06:36,905 INFO L276 IsEmpty]: Start isEmpty. Operand 30761 states and 35094 transitions. [2020-10-14 21:06:36,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2020-10-14 21:06:36,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:06:36,914 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:06:36,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 21:06:36,914 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:06:36,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:06:36,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1007471549, now seen corresponding path program 1 times [2020-10-14 21:06:36,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:06:36,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [237912606] [2020-10-14 21:06:36,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:06:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:37,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:37,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:37,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:39,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:39,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 480 [2020-10-14 21:06:39,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:06:39,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2088 [2020-10-14 21:06:39,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:39,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:39,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:06:39,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 340 [2020-10-14 21:06:39,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 21:06:39,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:39,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:06:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:39,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:39,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:39,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:06:39,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:39,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:06:39,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:39,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:06:39,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:06:39,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:06:39,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:39,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:06:39,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:39,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:39,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:39,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-14 21:06:39,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:39,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 21:06:39,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:39,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:39,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:06:39,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:06:39,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:06:39,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:39,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-14 21:06:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:39,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:39,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:39,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 21:06:39,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:39,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 21:06:39,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:39,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:06:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:06:39,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 21:06:39,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:39,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2020-10-14 21:06:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:39,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:39,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:39,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:06:39,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:39,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 21:06:39,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:39,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:39,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:06:39,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:06:39,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 21:06:39,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:39,642 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 297 proven. 2 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2020-10-14 21:06:39,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [237912606] [2020-10-14 21:06:39,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:06:39,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:06:39,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881072701] [2020-10-14 21:06:39,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:06:39,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:06:39,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:06:39,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:06:39,644 INFO L87 Difference]: Start difference. First operand 30761 states and 35094 transitions. Second operand 7 states. [2020-10-14 21:06:43,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:06:43,301 INFO L93 Difference]: Finished difference Result 58720 states and 67147 transitions. [2020-10-14 21:06:43,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:06:43,302 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 466 [2020-10-14 21:06:43,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:06:43,351 INFO L225 Difference]: With dead ends: 58720 [2020-10-14 21:06:43,351 INFO L226 Difference]: Without dead ends: 31425 [2020-10-14 21:06:43,376 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:06:43,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31425 states. [2020-10-14 21:06:43,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31425 to 30379. [2020-10-14 21:06:43,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30379 states. [2020-10-14 21:06:43,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30379 states to 30379 states and 34538 transitions. [2020-10-14 21:06:43,699 INFO L78 Accepts]: Start accepts. Automaton has 30379 states and 34538 transitions. Word has length 466 [2020-10-14 21:06:43,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:06:43,699 INFO L479 AbstractCegarLoop]: Abstraction has 30379 states and 34538 transitions. [2020-10-14 21:06:43,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:06:43,699 INFO L276 IsEmpty]: Start isEmpty. Operand 30379 states and 34538 transitions. [2020-10-14 21:06:43,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2020-10-14 21:06:43,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:06:43,710 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 21:06:43,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 21:06:43,710 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:06:43,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:06:43,710 INFO L82 PathProgramCache]: Analyzing trace with hash 895120504, now seen corresponding path program 1 times [2020-10-14 21:06:43,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:06:43,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [377049240] [2020-10-14 21:06:43,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:06:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:43,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:43,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:44,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:45,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:45,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:45,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:48,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:48,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 507 [2020-10-14 21:06:48,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 21:06:48,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-14 21:06:48,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:48,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:48,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 21:06:48,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:06:48,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 348 [2020-10-14 21:06:48,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:48,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:06:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:48,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:48,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:48,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:06:48,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:48,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 21:06:48,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:48,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:48,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:06:48,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:06:48,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:06:48,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:06:48,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:06:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:48,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:49,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:49,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:06:49,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:49,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 21:06:49,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:49,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:49,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:06:49,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:06:49,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 21:06:49,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:49,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:06:49,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:49,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:49,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:49,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 21:06:49,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:49,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 21:06:49,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:49,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:49,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:06:49,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:06:49,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 21:06:49,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:06:49,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-14 21:06:49,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:49,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:49,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:49,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:49,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 21:06:49,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:06:49,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-10-14 21:06:49,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:49,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:49,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:06:49,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:06:49,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 21:06:49,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:06:49,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2020-10-14 21:06:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:49,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:49,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:06:49,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:06:49,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:06:49,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 21:06:49,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:06:49,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:06:49,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:06:49,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 107 [2020-10-14 21:06:49,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:06:49,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:06:50,177 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 161 proven. 295 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2020-10-14 21:06:50,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [377049240] [2020-10-14 21:06:50,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:06:50,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 21:06:50,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339777072] [2020-10-14 21:06:50,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 21:06:50,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:06:50,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 21:06:50,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-14 21:06:50,180 INFO L87 Difference]: Start difference. First operand 30379 states and 34538 transitions. Second operand 9 states. [2020-10-14 21:06:56,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:06:56,510 INFO L93 Difference]: Finished difference Result 65482 states and 74608 transitions. [2020-10-14 21:06:56,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 21:06:56,512 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 491 [2020-10-14 21:06:56,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:06:56,579 INFO L225 Difference]: With dead ends: 65482 [2020-10-14 21:06:56,579 INFO L226 Difference]: Without dead ends: 38759 [2020-10-14 21:06:56,610 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2020-10-14 21:06:56,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38759 states. [2020-10-14 21:06:57,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38759 to 35386. [2020-10-14 21:06:57,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35386 states. [2020-10-14 21:06:57,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35386 states to 35386 states and 40128 transitions. [2020-10-14 21:06:57,044 INFO L78 Accepts]: Start accepts. Automaton has 35386 states and 40128 transitions. Word has length 491 [2020-10-14 21:06:57,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:06:57,044 INFO L479 AbstractCegarLoop]: Abstraction has 35386 states and 40128 transitions. [2020-10-14 21:06:57,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 21:06:57,044 INFO L276 IsEmpty]: Start isEmpty. Operand 35386 states and 40128 transitions. [2020-10-14 21:06:57,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2020-10-14 21:06:57,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:06:57,059 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:06:57,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 21:06:57,059 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:06:57,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:06:57,059 INFO L82 PathProgramCache]: Analyzing trace with hash -381907714, now seen corresponding path program 1 times [2020-10-14 21:06:57,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:06:57,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [76372321] [2020-10-14 21:06:57,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:06:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:06:57,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:57,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:58,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:58,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:06:58,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:00,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:07:00,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 510 [2020-10-14 21:07:00,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:07:00,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3609 [2020-10-14 21:07:00,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:07:00,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:07:00,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 21:07:00,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:07:00,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-14 21:07:00,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:07:00,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:07:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:07:00,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:00,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:07:00,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:07:00,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:07:00,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:07:00,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:07:00,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:07:00,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:07:00,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:07:00,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:07:00,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:07:00,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:07:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:07:00,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:01,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:07:01,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:07:01,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:07:01,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-14 21:07:01,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:07:01,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:07:01,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:07:01,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:07:01,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 21:07:01,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:07:01,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:07:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:07:01,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:01,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:07:01,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 21:07:01,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:07:01,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-14 21:07:01,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:07:01,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:07:01,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:07:01,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:07:01,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-14 21:07:01,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:07:01,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2020-10-14 21:07:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:07:01,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:01,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:07:01,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-14 21:07:01,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:07:01,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-14 21:07:01,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:07:01,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:07:01,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:07:01,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:07:01,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-14 21:07:01,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:07:01,938 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 16 proven. 106 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2020-10-14 21:07:01,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [76372321] [2020-10-14 21:07:01,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:07:01,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 21:07:01,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338490771] [2020-10-14 21:07:01,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 21:07:01,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:07:01,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 21:07:01,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:07:01,940 INFO L87 Difference]: Start difference. First operand 35386 states and 40128 transitions. Second operand 10 states. [2020-10-14 21:07:08,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:07:08,366 INFO L93 Difference]: Finished difference Result 87172 states and 98930 transitions. [2020-10-14 21:07:08,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-14 21:07:08,368 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 496 [2020-10-14 21:07:08,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:07:08,480 INFO L225 Difference]: With dead ends: 87172 [2020-10-14 21:07:08,480 INFO L226 Difference]: Without dead ends: 55450 [2020-10-14 21:07:08,521 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2020-10-14 21:07:08,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55450 states. [2020-10-14 21:07:09,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55450 to 53678. [2020-10-14 21:07:09,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53678 states. [2020-10-14 21:07:09,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53678 states to 53678 states and 60505 transitions. [2020-10-14 21:07:09,156 INFO L78 Accepts]: Start accepts. Automaton has 53678 states and 60505 transitions. Word has length 496 [2020-10-14 21:07:09,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:07:09,156 INFO L479 AbstractCegarLoop]: Abstraction has 53678 states and 60505 transitions. [2020-10-14 21:07:09,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 21:07:09,156 INFO L276 IsEmpty]: Start isEmpty. Operand 53678 states and 60505 transitions. [2020-10-14 21:07:09,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2020-10-14 21:07:09,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:07:09,173 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 21:07:09,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-14 21:07:09,174 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:07:09,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:07:09,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1925004163, now seen corresponding path program 1 times [2020-10-14 21:07:09,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:07:09,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1548761320] [2020-10-14 21:07:09,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:07:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:07:09,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:09,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:10,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:11,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:14,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:07:14,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 522 [2020-10-14 21:07:14,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:07:14,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4909 [2020-10-14 21:07:14,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:07:14,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:07:14,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:07:14,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 368 [2020-10-14 21:07:14,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 21:07:14,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:07:14,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:07:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:07:14,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:14,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:07:14,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:07:14,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:07:14,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:07:14,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:07:14,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:07:14,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:07:14,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:07:14,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:07:14,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:07:14,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:07:14,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:07:14,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:14,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:07:14,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:07:14,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:07:14,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:07:14,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:07:14,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:07:14,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:07:14,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:07:14,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:07:14,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:07:14,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:07:14,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:07:14,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:14,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:07:14,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 21:07:14,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:07:14,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:07:14,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:07:14,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:07:14,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:07:14,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:07:14,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:07:14,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:07:14,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-14 21:07:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:07:14,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:14,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:07:14,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-14 21:07:14,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:07:14,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 21:07:14,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:07:14,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:07:14,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:07:14,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:07:14,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 21:07:14,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:07:14,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-14 21:07:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:07:14,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:14,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:07:14,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:07:14,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:07:14,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 21:07:14,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:07:14,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:07:14,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:07:14,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:07:14,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 21:07:14,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:07:15,004 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 449 proven. 2 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2020-10-14 21:07:15,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1548761320] [2020-10-14 21:07:15,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:07:15,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:07:15,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783085447] [2020-10-14 21:07:15,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:07:15,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:07:15,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:07:15,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:07:15,010 INFO L87 Difference]: Start difference. First operand 53678 states and 60505 transitions. Second operand 7 states. [2020-10-14 21:07:18,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:07:18,553 INFO L93 Difference]: Finished difference Result 105195 states and 118616 transitions. [2020-10-14 21:07:18,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:07:18,555 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 506 [2020-10-14 21:07:18,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:07:18,738 INFO L225 Difference]: With dead ends: 105195 [2020-10-14 21:07:18,738 INFO L226 Difference]: Without dead ends: 54989 [2020-10-14 21:07:18,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:07:18,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54989 states. [2020-10-14 21:07:19,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54989 to 54056. [2020-10-14 21:07:19,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54056 states. [2020-10-14 21:07:19,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54056 states to 54056 states and 60764 transitions. [2020-10-14 21:07:19,728 INFO L78 Accepts]: Start accepts. Automaton has 54056 states and 60764 transitions. Word has length 506 [2020-10-14 21:07:19,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:07:19,728 INFO L479 AbstractCegarLoop]: Abstraction has 54056 states and 60764 transitions. [2020-10-14 21:07:19,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:07:19,728 INFO L276 IsEmpty]: Start isEmpty. Operand 54056 states and 60764 transitions. [2020-10-14 21:07:19,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2020-10-14 21:07:19,745 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:07:19,746 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 21:07:19,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-14 21:07:19,746 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:07:19,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:07:19,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1994597112, now seen corresponding path program 1 times [2020-10-14 21:07:19,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:07:19,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1531799016] [2020-10-14 21:07:19,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:07:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:07:19,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:20,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:21,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:21,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:24,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:07:24,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 580 [2020-10-14 21:07:24,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:07:24,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5100 [2020-10-14 21:07:24,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:07:24,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:07:24,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:07:24,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-14 21:07:24,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-14 21:07:24,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:07:25,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:07:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:07:25,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:25,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:07:25,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:07:25,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:07:25,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:07:25,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:07:25,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:07:25,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:07:25,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:07:25,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:07:25,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:07:25,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:07:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:07:25,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:25,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:07:25,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 21:07:25,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:07:25,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:07:25,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:07:25,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:07:25,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:07:25,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:07:25,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:07:25,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:07:25,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 21:07:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:07:25,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:25,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:07:25,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:07:25,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:07:25,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 21:07:25,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:07:25,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:07:25,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:07:25,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:07:25,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 21:07:25,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:07:25,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-10-14 21:07:25,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:07:25,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:25,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:07:25,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-14 21:07:25,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:07:25,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-14 21:07:25,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:07:25,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:07:25,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:07:25,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:07:25,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-10-14 21:07:25,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:07:25,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2020-10-14 21:07:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:07:25,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:07:25,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:07:25,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:07:25,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:07:25,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 21:07:25,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:07:25,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:07:25,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:07:25,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 107 [2020-10-14 21:07:25,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:07:25,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:07:25,691 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 387 proven. 108 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2020-10-14 21:07:25,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1531799016] [2020-10-14 21:07:25,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:07:25,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:07:25,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594686348] [2020-10-14 21:07:25,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:07:25,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:07:25,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:07:25,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:07:25,693 INFO L87 Difference]: Start difference. First operand 54056 states and 60764 transitions. Second operand 7 states.