/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/Problem15_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 21:57:46,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 21:57:46,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 21:57:46,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 21:57:46,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 21:57:46,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 21:57:46,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 21:57:46,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 21:57:46,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 21:57:46,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 21:57:46,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 21:57:46,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 21:57:46,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 21:57:46,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 21:57:46,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 21:57:46,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 21:57:46,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 21:57:46,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 21:57:46,559 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 21:57:46,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 21:57:46,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 21:57:46,569 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 21:57:46,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 21:57:46,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 21:57:46,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 21:57:46,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 21:57:46,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 21:57:46,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 21:57:46,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 21:57:46,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 21:57:46,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 21:57:46,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 21:57:46,591 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 21:57:46,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 21:57:46,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 21:57:46,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 21:57:46,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 21:57:46,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 21:57:46,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 21:57:46,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 21:57:46,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 21:57:46,601 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 21:57:46,628 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 21:57:46,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 21:57:46,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 21:57:46,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 21:57:46,630 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 21:57:46,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 21:57:46,630 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 21:57:46,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 21:57:46,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 21:57:46,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 21:57:46,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 21:57:46,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 21:57:46,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 21:57:46,632 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 21:57:46,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 21:57:46,632 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 21:57:46,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 21:57:46,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 21:57:46,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 21:57:46,633 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 21:57:46,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 21:57:46,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 21:57:46,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 21:57:46,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 21:57:46,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 21:57:46,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 21:57:46,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 21:57:46,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 21:57:46,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 21:57:46,635 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 21:57:46,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 21:57:46,933 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 21:57:46,938 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 21:57:46,939 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 21:57:46,940 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 21:57:46,940 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label26.c [2020-10-14 21:57:46,996 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dd27d0c27/9f764f690f7b420aa047283632e9ef53/FLAGff44c0d25 [2020-10-14 21:57:47,568 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 21:57:47,569 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem15_label26.c [2020-10-14 21:57:47,590 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dd27d0c27/9f764f690f7b420aa047283632e9ef53/FLAGff44c0d25 [2020-10-14 21:57:47,742 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dd27d0c27/9f764f690f7b420aa047283632e9ef53 [2020-10-14 21:57:47,750 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 21:57:47,752 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 21:57:47,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 21:57:47,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 21:57:47,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 21:57:47,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:57:47" (1/1) ... [2020-10-14 21:57:47,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f914f40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:47, skipping insertion in model container [2020-10-14 21:57:47,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:57:47" (1/1) ... [2020-10-14 21:57:47,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 21:57:47,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 21:57:48,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 21:57:48,702 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 21:57:49,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 21:57:49,025 INFO L208 MainTranslator]: Completed translation [2020-10-14 21:57:49,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:49 WrapperNode [2020-10-14 21:57:49,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 21:57:49,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 21:57:49,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 21:57:49,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 21:57:49,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:49" (1/1) ... [2020-10-14 21:57:49,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:49" (1/1) ... [2020-10-14 21:57:49,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:49" (1/1) ... [2020-10-14 21:57:49,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:49" (1/1) ... [2020-10-14 21:57:49,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:49" (1/1) ... [2020-10-14 21:57:49,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:49" (1/1) ... [2020-10-14 21:57:49,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:49" (1/1) ... [2020-10-14 21:57:49,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 21:57:49,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 21:57:49,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 21:57:49,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 21:57:49,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:49" (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 21:57:49,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 21:57:49,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 21:57:49,320 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 21:57:49,321 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 21:57:49,321 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 21:57:49,321 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 21:57:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 21:57:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 21:57:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 21:57:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 21:57:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 21:57:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 21:57:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 21:57:55,688 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 21:57:55,689 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 21:57:55,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:57:55 BoogieIcfgContainer [2020-10-14 21:57:55,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 21:57:55,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 21:57:55,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 21:57:55,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 21:57:55,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:57:47" (1/3) ... [2020-10-14 21:57:55,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb1de46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:57:55, skipping insertion in model container [2020-10-14 21:57:55,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:57:49" (2/3) ... [2020-10-14 21:57:55,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb1de46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:57:55, skipping insertion in model container [2020-10-14 21:57:55,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:57:55" (3/3) ... [2020-10-14 21:57:55,708 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem15_label26.c [2020-10-14 21:57:55,718 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 21:57:55,730 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 21:57:55,747 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 21:57:55,786 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 21:57:55,787 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 21:57:55,787 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 21:57:55,787 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 21:57:55,787 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 21:57:55,788 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 21:57:55,788 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 21:57:55,788 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 21:57:55,825 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states. [2020-10-14 21:57:55,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-14 21:57:55,838 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:57:55,839 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:57:55,839 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:57:55,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:57:55,846 INFO L82 PathProgramCache]: Analyzing trace with hash -35790891, now seen corresponding path program 1 times [2020-10-14 21:57:55,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:57:55,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [800808131] [2020-10-14 21:57:55,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:57:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:57:56,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:57:56,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:57:56,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-14 21:57:56,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:57:56,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 430 [2020-10-14 21:57:56,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:57:56,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:57:56,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:57:56,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:57:56,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-14 21:57:56,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 21:57:56,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:57:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:57:56,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:57:56,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:57:56,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:57:56,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:57:56,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:57:56,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:57:56,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:57:56,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:57:56,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:57:56,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:57:56,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:57:56,731 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 21:57:56,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [800808131] [2020-10-14 21:57:56,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:57:56,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 21:57:56,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705693369] [2020-10-14 21:57:56,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:57:56,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:57:56,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:57:56,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:57:56,758 INFO L87 Difference]: Start difference. First operand 437 states. Second operand 5 states. [2020-10-14 21:58:09,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:58:09,356 INFO L93 Difference]: Finished difference Result 1517 states and 2786 transitions. [2020-10-14 21:58:09,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 21:58:09,358 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-10-14 21:58:09,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:58:09,383 INFO L225 Difference]: With dead ends: 1517 [2020-10-14 21:58:09,383 INFO L226 Difference]: Without dead ends: 1010 [2020-10-14 21:58:09,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:58:09,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2020-10-14 21:58:09,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 1000. [2020-10-14 21:58:09,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1000 states. [2020-10-14 21:58:09,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1380 transitions. [2020-10-14 21:58:09,514 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1380 transitions. Word has length 59 [2020-10-14 21:58:09,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:58:09,515 INFO L479 AbstractCegarLoop]: Abstraction has 1000 states and 1380 transitions. [2020-10-14 21:58:09,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:58:09,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1380 transitions. [2020-10-14 21:58:09,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-14 21:58:09,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:58:09,522 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 21:58:09,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 21:58:09,522 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:58:09,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:58:09,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1287315378, now seen corresponding path program 1 times [2020-10-14 21:58:09,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:58:09,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [397398333] [2020-10-14 21:58:09,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:58:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:09,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:09,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:10,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:11,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:11,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 21:58:11,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:58:11,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2350 [2020-10-14 21:58:11,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:11,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:11,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:58:11,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:58:11,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 21:58:11,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:58:12,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:58:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:12,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:12,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:12,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:58:12,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:58:12,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:58:12,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:12,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:12,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:58:12,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:58:12,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:58:12,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:58:12,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:58:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:12,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:12,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:12,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 21:58:12,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:58:12,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-14 21:58:12,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:12,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:12,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:58:12,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:58:12,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 21:58:12,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:58:12,307 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:58:12,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [397398333] [2020-10-14 21:58:12,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:58:12,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 21:58:12,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687166016] [2020-10-14 21:58:12,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:58:12,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:58:12,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:58:12,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:58:12,312 INFO L87 Difference]: Start difference. First operand 1000 states and 1380 transitions. Second operand 7 states. [2020-10-14 21:58:19,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:58:19,475 INFO L93 Difference]: Finished difference Result 2334 states and 3160 transitions. [2020-10-14 21:58:19,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 21:58:19,484 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 128 [2020-10-14 21:58:19,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:58:19,492 INFO L225 Difference]: With dead ends: 2334 [2020-10-14 21:58:19,492 INFO L226 Difference]: Without dead ends: 1340 [2020-10-14 21:58:19,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:58:19,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2020-10-14 21:58:19,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1323. [2020-10-14 21:58:19,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1323 states. [2020-10-14 21:58:19,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1735 transitions. [2020-10-14 21:58:19,546 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1735 transitions. Word has length 128 [2020-10-14 21:58:19,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:58:19,547 INFO L479 AbstractCegarLoop]: Abstraction has 1323 states and 1735 transitions. [2020-10-14 21:58:19,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:58:19,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1735 transitions. [2020-10-14 21:58:19,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-14 21:58:19,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:58:19,552 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 21:58:19,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 21:58:19,552 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:58:19,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:58:19,553 INFO L82 PathProgramCache]: Analyzing trace with hash 939314333, now seen corresponding path program 1 times [2020-10-14 21:58:19,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:58:19,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068803997] [2020-10-14 21:58:19,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:58:19,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:19,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:19,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:20,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:20,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:20,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 21:58:20,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:58:20,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1017 [2020-10-14 21:58:20,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:20,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:20,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:58:20,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:58:20,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 21:58:20,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:58:20,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:58:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:20,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:20,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:20,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:58:20,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:58:20,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 21:58:20,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:20,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:20,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:58:20,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:58:20,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:58:20,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:58:20,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:58:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:20,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:20,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:20,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 21:58:20,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:58:20,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-14 21:58:20,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:20,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:20,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:58:20,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:58:20,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 21:58:20,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:58:20,978 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:58:20,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068803997] [2020-10-14 21:58:20,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:58:20,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 21:58:20,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801862279] [2020-10-14 21:58:20,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:58:20,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:58:20,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:58:20,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:58:20,982 INFO L87 Difference]: Start difference. First operand 1323 states and 1735 transitions. Second operand 8 states. [2020-10-14 21:58:28,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:58:28,815 INFO L93 Difference]: Finished difference Result 3930 states and 5456 transitions. [2020-10-14 21:58:28,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:58:28,819 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 133 [2020-10-14 21:58:28,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:58:28,834 INFO L225 Difference]: With dead ends: 3930 [2020-10-14 21:58:28,834 INFO L226 Difference]: Without dead ends: 2920 [2020-10-14 21:58:28,838 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-14 21:58:28,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2020-10-14 21:58:28,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 2895. [2020-10-14 21:58:28,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2895 states. [2020-10-14 21:58:28,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2895 states to 2895 states and 3688 transitions. [2020-10-14 21:58:28,948 INFO L78 Accepts]: Start accepts. Automaton has 2895 states and 3688 transitions. Word has length 133 [2020-10-14 21:58:28,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:58:28,951 INFO L479 AbstractCegarLoop]: Abstraction has 2895 states and 3688 transitions. [2020-10-14 21:58:28,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:58:28,951 INFO L276 IsEmpty]: Start isEmpty. Operand 2895 states and 3688 transitions. [2020-10-14 21:58:28,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-10-14 21:58:28,968 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:58:28,968 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:58:28,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 21:58:28,969 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:58:28,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:58:28,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1484514350, now seen corresponding path program 1 times [2020-10-14 21:58:28,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:58:28,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [93428293] [2020-10-14 21:58:28,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:58:29,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:29,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:29,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:29,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:30,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:30,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:31,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:33,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:33,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-10-14 21:58:33,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 21:58:33,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4205 [2020-10-14 21:58:33,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:33,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 21:58:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:58:33,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 239 [2020-10-14 21:58:33,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:58:33,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:58:33,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:33,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:33,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:33,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:58:33,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:58:33,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 21:58:33,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:33,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:33,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:58:33,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:58:33,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:58:33,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:58:33,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:58:33,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:33,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:33,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:33,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:33,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:58:33,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:58:33,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-14 21:58:33,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:33,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:33,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:58:33,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:58:33,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 21:58:33,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:58:33,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 21:58:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:33,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:33,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:33,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:33,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 21:58:33,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:58:33,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-14 21:58:33,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:33,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:33,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:58:33,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:58:33,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:58:33,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:58:34,066 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 96 proven. 11 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-14 21:58:34,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [93428293] [2020-10-14 21:58:34,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:58:34,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:58:34,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505538289] [2020-10-14 21:58:34,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:58:34,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:58:34,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:58:34,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:58:34,071 INFO L87 Difference]: Start difference. First operand 2895 states and 3688 transitions. Second operand 7 states. [2020-10-14 21:58:44,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:58:44,308 INFO L93 Difference]: Finished difference Result 6755 states and 9425 transitions. [2020-10-14 21:58:44,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 21:58:44,309 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 233 [2020-10-14 21:58:44,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:58:44,333 INFO L225 Difference]: With dead ends: 6755 [2020-10-14 21:58:44,334 INFO L226 Difference]: Without dead ends: 4795 [2020-10-14 21:58:44,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-14 21:58:44,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4795 states. [2020-10-14 21:58:44,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4795 to 4478. [2020-10-14 21:58:44,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4478 states. [2020-10-14 21:58:44,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4478 states to 4478 states and 6077 transitions. [2020-10-14 21:58:44,462 INFO L78 Accepts]: Start accepts. Automaton has 4478 states and 6077 transitions. Word has length 233 [2020-10-14 21:58:44,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:58:44,463 INFO L479 AbstractCegarLoop]: Abstraction has 4478 states and 6077 transitions. [2020-10-14 21:58:44,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:58:44,463 INFO L276 IsEmpty]: Start isEmpty. Operand 4478 states and 6077 transitions. [2020-10-14 21:58:44,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-10-14 21:58:44,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:58:44,469 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:58:44,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 21:58:44,469 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:58:44,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:58:44,470 INFO L82 PathProgramCache]: Analyzing trace with hash -202341061, now seen corresponding path program 1 times [2020-10-14 21:58:44,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:58:44,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [559600535] [2020-10-14 21:58:44,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:58:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:44,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:44,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:44,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:45,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:45,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:46,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:47,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:48,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:49,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:49,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 289 [2020-10-14 21:58:49,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 21:58:49,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-14 21:58:49,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:49,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:49,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 21:58:49,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:58:49,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 224 [2020-10-14 21:58:49,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 21:58:49,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:58:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:49,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:49,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:49,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:58:49,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:58:49,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 21:58:49,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:49,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:49,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:58:49,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:58:49,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:58:49,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:58:49,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:58:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:49,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:49,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:49,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:58:49,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:58:49,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-14 21:58:49,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:49,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:49,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:58:49,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:58:49,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 21:58:49,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 21:58:49,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 21:58:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:50,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:50,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:58:50,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 21:58:50,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:58:50,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-14 21:58:50,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:58:50,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:58:50,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:58:50,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:58:50,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 21:58:50,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:58:50,403 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-14 21:58:50,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [559600535] [2020-10-14 21:58:50,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:58:50,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 21:58:50,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015982503] [2020-10-14 21:58:50,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:58:50,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:58:50,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:58:50,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:58:50,406 INFO L87 Difference]: Start difference. First operand 4478 states and 6077 transitions. Second operand 7 states. [2020-10-14 21:58:58,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:58:58,309 INFO L93 Difference]: Finished difference Result 9343 states and 12926 transitions. [2020-10-14 21:58:58,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:58:58,310 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 277 [2020-10-14 21:58:58,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:58:58,336 INFO L225 Difference]: With dead ends: 9343 [2020-10-14 21:58:58,336 INFO L226 Difference]: Without dead ends: 5800 [2020-10-14 21:58:58,346 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:58:58,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5800 states. [2020-10-14 21:58:58,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5800 to 5459. [2020-10-14 21:58:58,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5459 states. [2020-10-14 21:58:58,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5459 states to 5459 states and 7241 transitions. [2020-10-14 21:58:58,498 INFO L78 Accepts]: Start accepts. Automaton has 5459 states and 7241 transitions. Word has length 277 [2020-10-14 21:58:58,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:58:58,499 INFO L479 AbstractCegarLoop]: Abstraction has 5459 states and 7241 transitions. [2020-10-14 21:58:58,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:58:58,499 INFO L276 IsEmpty]: Start isEmpty. Operand 5459 states and 7241 transitions. [2020-10-14 21:58:58,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2020-10-14 21:58:58,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:58:58,510 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:58:58,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 21:58:58,510 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:58:58,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:58:58,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1639838072, now seen corresponding path program 1 times [2020-10-14 21:58:58,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:58:58,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [426007362] [2020-10-14 21:58:58,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:58:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:58:58,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:58,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:58:58,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:00,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:03,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:03,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 429 [2020-10-14 21:59:03,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:59:03,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-10-14 21:59:03,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:03,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:03,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:59:03,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:59:03,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 206 [2020-10-14 21:59:03,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:03,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:59:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:03,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:03,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:03,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:59:03,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:03,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:59:03,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:03,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:03,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:59:03,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:03,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:59:03,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:59:03,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:59:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:03,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:04,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:04,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 21:59:04,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:04,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 422 [2020-10-14 21:59:04,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:04,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:04,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:59:04,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:59:04,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-14 21:59:04,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:04,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 21:59:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:04,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:04,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:04,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 21:59:04,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:04,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 21:59:04,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:04,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:04,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:59:04,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-14 21:59:04,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:59:04,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:04,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2020-10-14 21:59:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:04,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:04,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:04,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:59:04,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:04,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 21:59:04,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:04,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:04,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:59:04,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-14 21:59:04,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:59:04,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:05,394 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 156 proven. 146 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-14 21:59:05,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [426007362] [2020-10-14 21:59:05,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:59:05,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:59:05,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887209313] [2020-10-14 21:59:05,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:59:05,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:59:05,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:59:05,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:59:05,398 INFO L87 Difference]: Start difference. First operand 5459 states and 7241 transitions. Second operand 7 states. [2020-10-14 21:59:13,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:59:13,387 INFO L93 Difference]: Finished difference Result 11633 states and 15513 transitions. [2020-10-14 21:59:13,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:59:13,388 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 415 [2020-10-14 21:59:13,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:59:13,421 INFO L225 Difference]: With dead ends: 11633 [2020-10-14 21:59:13,421 INFO L226 Difference]: Without dead ends: 6487 [2020-10-14 21:59:13,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:59:13,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6487 states. [2020-10-14 21:59:13,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6487 to 6440. [2020-10-14 21:59:13,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6440 states. [2020-10-14 21:59:13,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6440 states to 6440 states and 8392 transitions. [2020-10-14 21:59:13,594 INFO L78 Accepts]: Start accepts. Automaton has 6440 states and 8392 transitions. Word has length 415 [2020-10-14 21:59:13,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:59:13,595 INFO L479 AbstractCegarLoop]: Abstraction has 6440 states and 8392 transitions. [2020-10-14 21:59:13,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:59:13,595 INFO L276 IsEmpty]: Start isEmpty. Operand 6440 states and 8392 transitions. [2020-10-14 21:59:13,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2020-10-14 21:59:13,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:59:13,608 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:59:13,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 21:59:13,608 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:59:13,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:59:13,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1350829729, now seen corresponding path program 1 times [2020-10-14 21:59:13,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:59:13,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853041744] [2020-10-14 21:59:13,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:59:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:13,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:14,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:14,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:17,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:18,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:18,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 503 [2020-10-14 21:59:18,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:59:18,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 21:59:18,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:18,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:18,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:59:18,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 366 [2020-10-14 21:59:18,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 21:59:18,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:59:18,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:59:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:18,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:18,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:18,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:59:18,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:18,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:59:18,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:18,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:18,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:59:18,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:18,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:59:18,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:59:18,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:59:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:18,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:19,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:19,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 21:59:19,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:19,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 21:59:19,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:19,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:19,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:59:19,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:19,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:59:19,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:59:19,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 21:59:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:19,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:19,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:19,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 21:59:19,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:19,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 21:59:19,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:19,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:19,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:59:19,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:19,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 21:59:19,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:19,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-14 21:59:19,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:19,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:19,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:19,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:59:19,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:19,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 21:59:19,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:19,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:19,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:59:19,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:59:19,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 21:59:19,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:19,771 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 307 proven. 2 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-14 21:59:19,772 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853041744] [2020-10-14 21:59:19,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:59:19,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:59:19,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289952597] [2020-10-14 21:59:19,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:59:19,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:59:19,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:59:19,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:59:19,775 INFO L87 Difference]: Start difference. First operand 6440 states and 8392 transitions. Second operand 7 states. [2020-10-14 21:59:29,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:59:29,028 INFO L93 Difference]: Finished difference Result 11361 states and 15660 transitions. [2020-10-14 21:59:29,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 21:59:29,030 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 489 [2020-10-14 21:59:29,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:59:29,062 INFO L225 Difference]: With dead ends: 11361 [2020-10-14 21:59:29,062 INFO L226 Difference]: Without dead ends: 7113 [2020-10-14 21:59:29,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:59:29,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7113 states. [2020-10-14 21:59:29,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7113 to 6779. [2020-10-14 21:59:29,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6779 states. [2020-10-14 21:59:29,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6779 states to 6779 states and 8840 transitions. [2020-10-14 21:59:29,236 INFO L78 Accepts]: Start accepts. Automaton has 6779 states and 8840 transitions. Word has length 489 [2020-10-14 21:59:29,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:59:29,237 INFO L479 AbstractCegarLoop]: Abstraction has 6779 states and 8840 transitions. [2020-10-14 21:59:29,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:59:29,237 INFO L276 IsEmpty]: Start isEmpty. Operand 6779 states and 8840 transitions. [2020-10-14 21:59:29,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2020-10-14 21:59:29,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:59:29,256 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:59:29,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 21:59:29,256 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:59:29,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:59:29,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1514190663, now seen corresponding path program 1 times [2020-10-14 21:59:29,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:59:29,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1089533613] [2020-10-14 21:59:29,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:59:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:29,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:29,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:30,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:31,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:33,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:33,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 508 [2020-10-14 21:59:33,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:59:33,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4332 [2020-10-14 21:59:33,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:33,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:33,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:59:33,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 371 [2020-10-14 21:59:33,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 21:59:33,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:59:33,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:59:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:33,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:33,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:33,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:59:33,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:33,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:59:33,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:33,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:33,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:59:33,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:33,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:59:33,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:33,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:59:33,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:33,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:33,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:33,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 21:59:33,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:33,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 21:59:33,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:33,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:33,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:59:33,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:33,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:59:33,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:59:33,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 21:59:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:33,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:34,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:34,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 21:59:34,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:34,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 21:59:34,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:34,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:34,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:59:34,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:34,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 21:59:34,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:59:34,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2020-10-14 21:59:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:34,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:34,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:34,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:59:34,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:34,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 21:59:34,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:34,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:34,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:59:34,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:59:34,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 21:59:34,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:59:34,285 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 307 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-14 21:59:34,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1089533613] [2020-10-14 21:59:34,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:59:34,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:59:34,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164692168] [2020-10-14 21:59:34,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:59:34,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:59:34,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:59:34,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:59:34,293 INFO L87 Difference]: Start difference. First operand 6779 states and 8840 transitions. Second operand 7 states. [2020-10-14 21:59:49,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:59:49,193 INFO L93 Difference]: Finished difference Result 14225 states and 19971 transitions. [2020-10-14 21:59:49,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:59:49,195 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 494 [2020-10-14 21:59:49,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:59:49,237 INFO L225 Difference]: With dead ends: 14225 [2020-10-14 21:59:49,238 INFO L226 Difference]: Without dead ends: 9638 [2020-10-14 21:59:49,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 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 21:59:49,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9638 states. [2020-10-14 21:59:49,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9638 to 8991. [2020-10-14 21:59:49,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8991 states. [2020-10-14 21:59:49,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8991 states to 8991 states and 12269 transitions. [2020-10-14 21:59:49,497 INFO L78 Accepts]: Start accepts. Automaton has 8991 states and 12269 transitions. Word has length 494 [2020-10-14 21:59:49,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:59:49,498 INFO L479 AbstractCegarLoop]: Abstraction has 8991 states and 12269 transitions. [2020-10-14 21:59:49,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:59:49,499 INFO L276 IsEmpty]: Start isEmpty. Operand 8991 states and 12269 transitions. [2020-10-14 21:59:49,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2020-10-14 21:59:49,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:59:49,526 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:59:49,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 21:59:49,526 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:59:49,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:59:49,527 INFO L82 PathProgramCache]: Analyzing trace with hash 843575275, now seen corresponding path program 1 times [2020-10-14 21:59:49,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:59:49,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [422767823] [2020-10-14 21:59:49,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:59:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:49,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:49,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:51,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:51,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:53,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:53,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 509 [2020-10-14 21:59:53,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:59:53,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4231 [2020-10-14 21:59:53,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:53,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:53,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:59:53,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 371 [2020-10-14 21:59:53,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 21:59:53,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:59:53,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:59:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:53,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:53,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:53,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:59:53,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:53,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:59:53,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:53,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:53,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:59:53,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:53,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:59:53,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:59:53,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:59:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:54,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:54,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:54,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 21:59:54,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:54,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 21:59:54,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:54,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:54,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:59:54,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:54,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:59:54,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:59:54,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 21:59:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:54,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:54,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:54,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 21:59:54,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:54,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 21:59:54,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:54,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:54,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:59:54,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:59:54,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 21:59:54,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:59:54,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2020-10-14 21:59:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:59:54,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:59:54,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:59:54,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:59:54,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:59:54,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 21:59:54,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:59:54,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:59:54,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:59:54,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:59:54,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 21:59:54,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:59:54,473 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 307 proven. 2 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-14 21:59:54,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [422767823] [2020-10-14 21:59:54,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:59:54,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:59:54,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76663175] [2020-10-14 21:59:54,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:59:54,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:59:54,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:59:54,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:59:54,476 INFO L87 Difference]: Start difference. First operand 8991 states and 12269 transitions. Second operand 7 states. [2020-10-14 22:00:05,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:00:05,675 INFO L93 Difference]: Finished difference Result 22123 states and 31641 transitions. [2020-10-14 22:00:05,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:00:05,680 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 495 [2020-10-14 22:00:05,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:00:05,724 INFO L225 Difference]: With dead ends: 22123 [2020-10-14 22:00:05,724 INFO L226 Difference]: Without dead ends: 13445 [2020-10-14 22:00:05,748 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 22:00:05,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13445 states. [2020-10-14 22:00:06,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13445 to 12470. [2020-10-14 22:00:06,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12470 states. [2020-10-14 22:00:06,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12470 states to 12470 states and 17000 transitions. [2020-10-14 22:00:06,109 INFO L78 Accepts]: Start accepts. Automaton has 12470 states and 17000 transitions. Word has length 495 [2020-10-14 22:00:06,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:00:06,110 INFO L479 AbstractCegarLoop]: Abstraction has 12470 states and 17000 transitions. [2020-10-14 22:00:06,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:00:06,111 INFO L276 IsEmpty]: Start isEmpty. Operand 12470 states and 17000 transitions. [2020-10-14 22:00:06,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2020-10-14 22:00:06,129 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:00:06,130 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:00:06,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:00:06,131 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:00:06,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:00:06,131 INFO L82 PathProgramCache]: Analyzing trace with hash -2035255741, now seen corresponding path program 1 times [2020-10-14 22:00:06,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:00:06,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139322206] [2020-10-14 22:00:06,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:00:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:06,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:06,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:08,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:08,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:11,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:11,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 522 [2020-10-14 22:00:11,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:00:11,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-14 22:00:11,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:11,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:11,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:00:11,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 22:00:11,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-14 22:00:11,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:11,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:00:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:11,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:11,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:11,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:00:11,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:11,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:00:11,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:11,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:11,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:00:11,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:11,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:00:11,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:11,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:00:11,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:11,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:11,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:11,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 22:00:11,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:11,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-14 22:00:11,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:11,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:11,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:00:11,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:11,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 269 [2020-10-14 22:00:11,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:00:11,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:00:11,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:11,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:11,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:11,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-14 22:00:11,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:11,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 22:00:11,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:11,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:11,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:00:11,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:00:11,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-14 22:00:11,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:11,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2020-10-14 22:00:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:11,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:12,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:12,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:00:12,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:12,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-14 22:00:12,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:12,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:12,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:00:12,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-14 22:00:12,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:00:12,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:12,137 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 256 proven. 75 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-14 22:00:12,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2139322206] [2020-10-14 22:00:12,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:00:12,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:00:12,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097852939] [2020-10-14 22:00:12,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:00:12,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:00:12,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:00:12,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:00:12,139 INFO L87 Difference]: Start difference. First operand 12470 states and 17000 transitions. Second operand 7 states. [2020-10-14 22:00:25,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:00:25,592 INFO L93 Difference]: Finished difference Result 28121 states and 39569 transitions. [2020-10-14 22:00:25,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:00:25,595 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 508 [2020-10-14 22:00:25,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:00:25,667 INFO L225 Difference]: With dead ends: 28121 [2020-10-14 22:00:25,668 INFO L226 Difference]: Without dead ends: 15964 [2020-10-14 22:00:25,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 1 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 22:00:25,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15964 states. [2020-10-14 22:00:26,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15964 to 15947. [2020-10-14 22:00:26,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15947 states. [2020-10-14 22:00:26,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15947 states to 15947 states and 21495 transitions. [2020-10-14 22:00:26,117 INFO L78 Accepts]: Start accepts. Automaton has 15947 states and 21495 transitions. Word has length 508 [2020-10-14 22:00:26,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:00:26,118 INFO L479 AbstractCegarLoop]: Abstraction has 15947 states and 21495 transitions. [2020-10-14 22:00:26,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:00:26,118 INFO L276 IsEmpty]: Start isEmpty. Operand 15947 states and 21495 transitions. [2020-10-14 22:00:26,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2020-10-14 22:00:26,133 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:00:26,135 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:00:26,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:00:26,136 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:00:26,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:00:26,136 INFO L82 PathProgramCache]: Analyzing trace with hash -491215294, now seen corresponding path program 1 times [2020-10-14 22:00:26,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:00:26,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1461155398] [2020-10-14 22:00:26,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:00:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:26,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:26,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:26,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:27,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:28,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:31,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:31,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 557 [2020-10-14 22:00:31,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:00:31,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4608 [2020-10-14 22:00:31,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:31,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:31,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:00:31,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 397 [2020-10-14 22:00:31,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 22:00:31,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:31,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:00:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:31,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:31,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:31,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:00:31,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:31,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:00:31,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:31,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:31,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:00:31,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:31,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:00:31,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:31,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:00:31,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:31,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:31,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:31,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 22:00:31,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:31,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 22:00:31,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:31,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:31,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:00:31,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:31,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:00:31,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:31,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:00:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:31,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:31,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:31,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:00:31,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:31,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 22:00:31,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:31,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:31,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:00:31,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:31,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:00:31,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:31,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-10-14 22:00:31,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:31,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:31,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:31,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:31,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:31,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-14 22:00:31,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:00:31,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-14 22:00:31,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:31,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:31,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:00:31,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:00:31,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-14 22:00:31,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:31,755 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 349 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 22:00:31,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1461155398] [2020-10-14 22:00:31,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:00:31,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:00:31,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42353045] [2020-10-14 22:00:31,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:00:31,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:00:31,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:00:31,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:00:31,758 INFO L87 Difference]: Start difference. First operand 15947 states and 21495 transitions. Second operand 7 states. [2020-10-14 22:00:42,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:00:42,430 INFO L93 Difference]: Finished difference Result 31634 states and 42807 transitions. [2020-10-14 22:00:42,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:00:42,432 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 543 [2020-10-14 22:00:42,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:00:42,478 INFO L225 Difference]: With dead ends: 31634 [2020-10-14 22:00:42,478 INFO L226 Difference]: Without dead ends: 16000 [2020-10-14 22:00:42,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 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 22:00:42,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16000 states. [2020-10-14 22:00:42,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16000 to 15335. [2020-10-14 22:00:42,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15335 states. [2020-10-14 22:00:42,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15335 states to 15335 states and 18857 transitions. [2020-10-14 22:00:42,788 INFO L78 Accepts]: Start accepts. Automaton has 15335 states and 18857 transitions. Word has length 543 [2020-10-14 22:00:42,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:00:42,789 INFO L479 AbstractCegarLoop]: Abstraction has 15335 states and 18857 transitions. [2020-10-14 22:00:42,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:00:42,789 INFO L276 IsEmpty]: Start isEmpty. Operand 15335 states and 18857 transitions. [2020-10-14 22:00:42,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2020-10-14 22:00:42,798 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:00:42,799 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:00:42,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:00:42,799 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:00:42,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:00:42,800 INFO L82 PathProgramCache]: Analyzing trace with hash 211390269, now seen corresponding path program 1 times [2020-10-14 22:00:42,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:00:42,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [255523379] [2020-10-14 22:00:42,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:00:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:43,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:43,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:43,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:44,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:44,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:47,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:47,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 586 [2020-10-14 22:00:47,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:00:47,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 22:00:47,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:47,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:47,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:00:47,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 397 [2020-10-14 22:00:47,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 188 [2020-10-14 22:00:47,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:48,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:00:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:48,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:48,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:48,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:00:48,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:48,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:00:48,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:48,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:48,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:00:48,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:48,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:00:48,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:48,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:00:48,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:48,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:48,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:48,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 22:00:48,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:48,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 22:00:48,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:48,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:48,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:00:48,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:48,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:00:48,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:48,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:00:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:48,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:48,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:48,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:00:48,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:48,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 22:00:48,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:48,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:48,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:00:48,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:00:48,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:00:48,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:48,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-10-14 22:00:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:48,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:48,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:00:48,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 22:00:48,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:00:48,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 22:00:48,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:00:48,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:00:48,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:00:48,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:00:48,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 22:00:48,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:00:48,692 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 337 proven. 53 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-10-14 22:00:48,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [255523379] [2020-10-14 22:00:48,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:00:48,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 22:00:48,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749887792] [2020-10-14 22:00:48,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 22:00:48,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:00:48,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 22:00:48,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:00:48,694 INFO L87 Difference]: Start difference. First operand 15335 states and 18857 transitions. Second operand 6 states. [2020-10-14 22:00:57,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:00:57,270 INFO L93 Difference]: Finished difference Result 36371 states and 46365 transitions. [2020-10-14 22:00:57,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 22:00:57,272 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 572 [2020-10-14 22:00:57,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:00:57,342 INFO L225 Difference]: With dead ends: 36371 [2020-10-14 22:00:57,342 INFO L226 Difference]: Without dead ends: 24474 [2020-10-14 22:00:57,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:00:57,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24474 states. [2020-10-14 22:00:57,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24474 to 23230. [2020-10-14 22:00:57,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23230 states. [2020-10-14 22:00:57,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23230 states to 23230 states and 28496 transitions. [2020-10-14 22:00:57,772 INFO L78 Accepts]: Start accepts. Automaton has 23230 states and 28496 transitions. Word has length 572 [2020-10-14 22:00:57,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:00:57,774 INFO L479 AbstractCegarLoop]: Abstraction has 23230 states and 28496 transitions. [2020-10-14 22:00:57,774 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 22:00:57,774 INFO L276 IsEmpty]: Start isEmpty. Operand 23230 states and 28496 transitions. [2020-10-14 22:00:57,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 660 [2020-10-14 22:00:57,794 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:00:57,796 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:00:57,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:00:57,796 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:00:57,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:00:57,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1154183994, now seen corresponding path program 1 times [2020-10-14 22:00:57,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:00:57,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1772042953] [2020-10-14 22:00:57,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:00:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:00:58,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:58,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:58,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:00:58,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:03,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:03,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 675 [2020-10-14 22:01:03,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:01:03,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-14 22:01:03,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:03,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:03,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:01:03,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 480 [2020-10-14 22:01:03,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 22:01:03,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:03,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:01:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:03,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:03,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:03,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:01:03,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:03,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:01:03,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:03,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:03,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:01:03,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:03,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:01:03,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:03,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:01:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:03,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:03,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:03,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 22:01:03,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:03,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 22:01:03,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:03,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:03,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:01:03,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:03,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:01:03,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:03,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:01:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:03,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:03,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:03,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:01:03,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:03,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:01:03,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:03,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:03,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:01:03,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:03,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:01:03,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:03,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-10-14 22:01:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:03,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:03,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:03,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 22:01:03,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:03,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:01:03,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:03,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:03,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:01:03,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:03,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 22:01:03,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:03,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2020-10-14 22:01:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:03,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:03,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:03,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-14 22:01:03,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:03,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 22:01:03,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:03,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:03,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:01:03,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:01:03,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 22:01:03,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:03,860 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 533 proven. 2 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2020-10-14 22:01:03,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1772042953] [2020-10-14 22:01:03,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:01:03,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:01:03,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897134546] [2020-10-14 22:01:03,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:01:03,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:01:03,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:01:03,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:01:03,862 INFO L87 Difference]: Start difference. First operand 23230 states and 28496 transitions. Second operand 7 states. [2020-10-14 22:01:17,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:01:17,412 INFO L93 Difference]: Finished difference Result 51412 states and 64492 transitions. [2020-10-14 22:01:17,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:01:17,414 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 659 [2020-10-14 22:01:17,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:01:17,489 INFO L225 Difference]: With dead ends: 51412 [2020-10-14 22:01:17,489 INFO L226 Difference]: Without dead ends: 31620 [2020-10-14 22:01:17,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 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 22:01:17,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31620 states. [2020-10-14 22:01:17,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31620 to 28529. [2020-10-14 22:01:17,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28529 states. [2020-10-14 22:01:17,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28529 states to 28529 states and 34415 transitions. [2020-10-14 22:01:17,960 INFO L78 Accepts]: Start accepts. Automaton has 28529 states and 34415 transitions. Word has length 659 [2020-10-14 22:01:17,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:01:17,961 INFO L479 AbstractCegarLoop]: Abstraction has 28529 states and 34415 transitions. [2020-10-14 22:01:17,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:01:17,961 INFO L276 IsEmpty]: Start isEmpty. Operand 28529 states and 34415 transitions. [2020-10-14 22:01:17,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2020-10-14 22:01:17,986 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:01:17,987 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:01:17,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:01:17,987 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:01:17,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:01:17,988 INFO L82 PathProgramCache]: Analyzing trace with hash 992279211, now seen corresponding path program 1 times [2020-10-14 22:01:17,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:01:17,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1627159274] [2020-10-14 22:01:17,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:01:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:18,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:18,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:18,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:21,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:23,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:23,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 681 [2020-10-14 22:01:23,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:01:23,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-14 22:01:23,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:23,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:23,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:01:23,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 397 [2020-10-14 22:01:23,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 226 [2020-10-14 22:01:23,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:23,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:01:23,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:23,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:23,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:23,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:01:23,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:23,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:01:23,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:23,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:23,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:01:23,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:23,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:01:23,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:23,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:01:23,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:23,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:23,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:23,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 22:01:23,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:23,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 22:01:23,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:23,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:23,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:01:23,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:23,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:01:23,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:23,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:01:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:23,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:23,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:23,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 22:01:23,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:23,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 22:01:23,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:23,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:23,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:01:23,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:01:23,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:01:23,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:23,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-10-14 22:01:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:23,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:23,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:01:23,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:01:23,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:01:23,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-10-14 22:01:23,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:01:23,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:01:23,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:01:23,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:01:23,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 224 [2020-10-14 22:01:23,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:01:24,185 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 489 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 22:01:24,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1627159274] [2020-10-14 22:01:24,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:01:24,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:01:24,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909085641] [2020-10-14 22:01:24,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:01:24,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:01:24,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:01:24,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:01:24,187 INFO L87 Difference]: Start difference. First operand 28529 states and 34415 transitions. Second operand 7 states. [2020-10-14 22:01:38,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:01:38,950 INFO L93 Difference]: Finished difference Result 66392 states and 81177 transitions. [2020-10-14 22:01:38,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:01:38,952 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 667 [2020-10-14 22:01:38,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:01:39,038 INFO L225 Difference]: With dead ends: 66392 [2020-10-14 22:01:39,038 INFO L226 Difference]: Without dead ends: 36548 [2020-10-14 22:01:39,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:01:39,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36548 states. [2020-10-14 22:01:39,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36548 to 35916. [2020-10-14 22:01:39,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35916 states. [2020-10-14 22:01:39,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35916 states to 35916 states and 41481 transitions. [2020-10-14 22:01:39,879 INFO L78 Accepts]: Start accepts. Automaton has 35916 states and 41481 transitions. Word has length 667 [2020-10-14 22:01:39,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:01:39,880 INFO L479 AbstractCegarLoop]: Abstraction has 35916 states and 41481 transitions. [2020-10-14 22:01:39,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:01:39,880 INFO L276 IsEmpty]: Start isEmpty. Operand 35916 states and 41481 transitions. [2020-10-14 22:01:39,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 737 [2020-10-14 22:01:39,897 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:01:39,898 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:01:39,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 22:01:39,898 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:01:39,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:01:39,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1868095917, now seen corresponding path program 1 times [2020-10-14 22:01:39,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:01:39,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [524633328] [2020-10-14 22:01:39,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:01:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:01:40,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:40,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:40,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:01:40,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking...