/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 --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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label44.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:27:48,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:27:48,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:27:48,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:27:48,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:27:48,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:27:48,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:27:48,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:27:48,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:27:48,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:27:48,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:27:48,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:27:48,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:27:48,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:27:48,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:27:48,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:27:48,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:27:48,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:27:48,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:27:48,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:27:48,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:27:48,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:27:48,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:27:48,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:27:48,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:27:48,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:27:48,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:27:48,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:27:48,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:27:48,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:27:48,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:27:48,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:27:48,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:27:48,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:27:48,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:27:48,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:27:48,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:27:48,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:27:48,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:27:48,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:27:48,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:27:48,773 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 [2020-09-21 11:27:48,836 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:27:48,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:27:48,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:27:48,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:27:48,843 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:27:48,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:27:48,843 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:27:48,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:27:48,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:27:48,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:27:48,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:27:48,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:27:48,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:27:48,844 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:27:48,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:27:48,845 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:27:48,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:27:48,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:27:48,845 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:27:48,847 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:27:48,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:27:48,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:27:48,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:27:48,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:27:48,848 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:27:48,848 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:27:48,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:27:48,848 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:27:48,848 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:27:48,849 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.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;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:27:49,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:27:49,379 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:27:49,384 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:27:49,386 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:27:49,386 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:27:49,388 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label44.c [2020-09-21 11:27:49,481 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a5cdf64e/21310c8d36254574a984eec84fab796f/FLAGde1139045 [2020-09-21 11:27:50,156 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:27:50,157 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label44.c [2020-09-21 11:27:50,171 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a5cdf64e/21310c8d36254574a984eec84fab796f/FLAGde1139045 [2020-09-21 11:27:50,375 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a5cdf64e/21310c8d36254574a984eec84fab796f [2020-09-21 11:27:50,392 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:27:50,400 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:27:50,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:27:50,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:27:50,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:27:50,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:27:50" (1/1) ... [2020-09-21 11:27:50,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb7919e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:50, skipping insertion in model container [2020-09-21 11:27:50,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:27:50" (1/1) ... [2020-09-21 11:27:50,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:27:50,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:27:51,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:27:51,059 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:27:51,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:27:51,199 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:27:51,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:51 WrapperNode [2020-09-21 11:27:51,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:27:51,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:27:51,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:27:51,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:27:51,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:51" (1/1) ... [2020-09-21 11:27:51,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:51" (1/1) ... [2020-09-21 11:27:51,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:51" (1/1) ... [2020-09-21 11:27:51,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:51" (1/1) ... [2020-09-21 11:27:51,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:51" (1/1) ... [2020-09-21 11:27:51,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:51" (1/1) ... [2020-09-21 11:27:51,315 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:51" (1/1) ... [2020-09-21 11:27:51,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:27:51,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:27:51,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:27:51,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:27:51,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:27:51,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:27:51,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:27:51,412 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 11:27:51,412 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:27:51,412 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 11:27:51,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:27:51,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:27:51,413 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 11:27:51,413 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:27:51,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:27:51,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:27:52,748 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:27:52,749 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 11:27:52,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:27:52 BoogieIcfgContainer [2020-09-21 11:27:52,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:27:52,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:27:52,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:27:52,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:27:52,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:27:50" (1/3) ... [2020-09-21 11:27:52,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c3a710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:27:52, skipping insertion in model container [2020-09-21 11:27:52,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:51" (2/3) ... [2020-09-21 11:27:52,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c3a710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:27:52, skipping insertion in model container [2020-09-21 11:27:52,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:27:52" (3/3) ... [2020-09-21 11:27:52,767 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label44.c [2020-09-21 11:27:52,780 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:27:52,791 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:27:52,815 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:27:52,853 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:27:52,854 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:27:52,854 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:27:52,854 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:27:52,854 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:27:52,854 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:27:52,855 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:27:52,855 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:27:52,891 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-09-21 11:27:52,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-21 11:27:52,905 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:52,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:52,907 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:52,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:52,916 INFO L82 PathProgramCache]: Analyzing trace with hash 745509942, now seen corresponding path program 1 times [2020-09-21 11:27:52,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:52,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1866876548] [2020-09-21 11:27:52,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:53,213 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:53,213 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:53,213 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:53,214 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:53,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-21 11:27:53,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:53,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-21 11:27:53,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:53,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:27:53,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:27:53,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-21 11:27:53,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:53,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:53,399 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:53,399 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:53,399 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:53,399 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:53,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:53,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:53,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:27:53,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:53,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:53,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:53,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:27:53,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:53,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:27:53,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1866876548] [2020-09-21 11:27:53,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:27:53,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:27:53,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085047798] [2020-09-21 11:27:53,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:27:53,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:53,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:27:53,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:53,483 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-09-21 11:27:55,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:55,988 INFO L93 Difference]: Finished difference Result 730 states and 1301 transitions. [2020-09-21 11:27:55,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:27:55,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 63 [2020-09-21 11:27:55,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:56,013 INFO L225 Difference]: With dead ends: 730 [2020-09-21 11:27:56,013 INFO L226 Difference]: Without dead ends: 447 [2020-09-21 11:27:56,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:27:56,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-09-21 11:27:56,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2020-09-21 11:27:56,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-09-21 11:27:56,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 672 transitions. [2020-09-21 11:27:56,125 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 672 transitions. Word has length 63 [2020-09-21 11:27:56,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:56,126 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 672 transitions. [2020-09-21 11:27:56,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:27:56,126 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 672 transitions. [2020-09-21 11:27:56,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-21 11:27:56,140 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:56,141 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:56,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:27:56,142 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:56,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:56,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1989249747, now seen corresponding path program 1 times [2020-09-21 11:27:56,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:56,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [654284673] [2020-09-21 11:27:56,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:56,389 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:56,389 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:56,390 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:56,390 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:56,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-09-21 11:27:56,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:56,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-21 11:27:56,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:56,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:27:56,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:27:56,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:27:56,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:56,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:56,488 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:56,488 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:56,489 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:56,489 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:56,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:56,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:56,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:27:56,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:56,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:56,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:56,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:27:56,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:56,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:56,575 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:56,576 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:56,576 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:56,576 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:56,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-21 11:27:56,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:56,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-21 11:27:56,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:56,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:56,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:56,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-21 11:27:56,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:56,738 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:27:56,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [654284673] [2020-09-21 11:27:56,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:27:56,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:27:56,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97613765] [2020-09-21 11:27:56,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:27:56,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:56,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:27:56,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:27:56,743 INFO L87 Difference]: Start difference. First operand 441 states and 672 transitions. Second operand 8 states. [2020-09-21 11:27:58,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:58,550 INFO L93 Difference]: Finished difference Result 1041 states and 1612 transitions. [2020-09-21 11:27:58,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:27:58,552 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 136 [2020-09-21 11:27:58,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:58,557 INFO L225 Difference]: With dead ends: 1041 [2020-09-21 11:27:58,558 INFO L226 Difference]: Without dead ends: 606 [2020-09-21 11:27:58,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:27:58,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-09-21 11:27:58,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 592. [2020-09-21 11:27:58,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-09-21 11:27:58,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 829 transitions. [2020-09-21 11:27:58,616 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 829 transitions. Word has length 136 [2020-09-21 11:27:58,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:58,624 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 829 transitions. [2020-09-21 11:27:58,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:27:58,625 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 829 transitions. [2020-09-21 11:27:58,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-21 11:27:58,635 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:58,635 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:58,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:27:58,636 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:58,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:58,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1901765607, now seen corresponding path program 1 times [2020-09-21 11:27:58,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:58,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [103860865] [2020-09-21 11:27:58,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:58,762 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-21 11:27:58,762 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -84 [2020-09-21 11:27:58,762 FATAL L256 erpolLogProxyWrapper]: Difference in width: 84 [2020-09-21 11:27:58,763 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:58,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-21 11:27:58,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:58,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-21 11:27:58,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:58,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:58,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-09-21 11:27:58,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 11:27:58,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:58,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:58,872 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:58,872 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:58,872 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:58,873 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:58,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:58,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:58,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:58,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:58,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:58,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:58,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:58,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:58,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:58,920 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-21 11:27:58,920 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:58,921 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:58,921 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:58,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 11:27:58,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:58,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:27:58,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:58,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:58,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:58,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-21 11:27:58,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:58,985 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:27:58,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [103860865] [2020-09-21 11:27:58,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:58,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:27:58,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243232582] [2020-09-21 11:27:58,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:27:58,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:58,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:27:58,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:58,988 INFO L87 Difference]: Start difference. First operand 592 states and 829 transitions. Second operand 5 states. [2020-09-21 11:28:00,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:00,060 INFO L93 Difference]: Finished difference Result 1209 states and 1700 transitions. [2020-09-21 11:28:00,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:28:00,061 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-09-21 11:28:00,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:00,065 INFO L225 Difference]: With dead ends: 1209 [2020-09-21 11:28:00,066 INFO L226 Difference]: Without dead ends: 600 [2020-09-21 11:28:00,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:28:00,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2020-09-21 11:28:00,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 592. [2020-09-21 11:28:00,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-09-21 11:28:00,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 825 transitions. [2020-09-21 11:28:00,095 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 825 transitions. Word has length 142 [2020-09-21 11:28:00,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:00,096 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 825 transitions. [2020-09-21 11:28:00,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:28:00,096 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 825 transitions. [2020-09-21 11:28:00,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-21 11:28:00,099 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:28:00,100 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:28:00,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:28:00,100 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:28:00,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:28:00,101 INFO L82 PathProgramCache]: Analyzing trace with hash -2032949574, now seen corresponding path program 1 times [2020-09-21 11:28:00,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:28:00,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1931427521] [2020-09-21 11:28:00,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:28:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:00,158 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:00,158 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:00,158 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:00,159 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:00,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-09-21 11:28:00,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:00,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:28:00,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:00,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:28:00,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:28:00,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-21 11:28:00,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:00,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:28:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:00,247 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:00,247 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:00,248 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:00,248 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:00,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:28:00,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:00,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:28:00,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:28:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:00,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:28:00,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:28:00,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:28:00,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:00,324 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:00,326 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:00,327 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:00,327 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:00,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-21 11:28:00,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:00,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 11:28:00,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:00,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:00,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:28:00,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-21 11:28:00,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:28:00,452 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:28:00,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1931427521] [2020-09-21 11:28:00,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:28:00,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:28:00,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708831039] [2020-09-21 11:28:00,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:28:00,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:28:00,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:28:00,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:28:00,455 INFO L87 Difference]: Start difference. First operand 592 states and 825 transitions. Second operand 7 states. [2020-09-21 11:28:02,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:02,041 INFO L93 Difference]: Finished difference Result 1796 states and 2571 transitions. [2020-09-21 11:28:02,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:28:02,043 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 153 [2020-09-21 11:28:02,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:02,051 INFO L225 Difference]: With dead ends: 1796 [2020-09-21 11:28:02,052 INFO L226 Difference]: Without dead ends: 1210 [2020-09-21 11:28:02,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:28:02,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2020-09-21 11:28:02,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 900. [2020-09-21 11:28:02,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 900 states. [2020-09-21 11:28:02,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1240 transitions. [2020-09-21 11:28:02,101 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1240 transitions. Word has length 153 [2020-09-21 11:28:02,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:02,102 INFO L479 AbstractCegarLoop]: Abstraction has 900 states and 1240 transitions. [2020-09-21 11:28:02,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:28:02,102 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1240 transitions. [2020-09-21 11:28:02,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-21 11:28:02,106 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:28:02,106 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:28:02,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:28:02,107 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:28:02,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:28:02,107 INFO L82 PathProgramCache]: Analyzing trace with hash 586944646, now seen corresponding path program 1 times [2020-09-21 11:28:02,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:28:02,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [458350041] [2020-09-21 11:28:02,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:28:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:02,183 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:02,183 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:02,183 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:02,183 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:02,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-21 11:28:02,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:02,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-21 11:28:02,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:02,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:28:02,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:28:02,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-21 11:28:02,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:02,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:28:02,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:02,262 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:02,263 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:02,264 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:02,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:02,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:28:02,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:02,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:28:02,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:02,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:28:02,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:02,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:28:02,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:02,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:28:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:02,342 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:02,342 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:02,342 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:02,342 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:02,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-21 11:28:02,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:02,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:28:02,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:02,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:02,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:28:02,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-21 11:28:02,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:28:02,536 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:28:02,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [458350041] [2020-09-21 11:28:02,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:28:02,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:28:02,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767564429] [2020-09-21 11:28:02,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:28:02,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:28:02,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:28:02,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:28:02,540 INFO L87 Difference]: Start difference. First operand 900 states and 1240 transitions. Second operand 8 states. [2020-09-21 11:28:05,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:05,225 INFO L93 Difference]: Finished difference Result 2986 states and 4298 transitions. [2020-09-21 11:28:05,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:28:05,226 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 175 [2020-09-21 11:28:05,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:05,244 INFO L225 Difference]: With dead ends: 2986 [2020-09-21 11:28:05,244 INFO L226 Difference]: Without dead ends: 2092 [2020-09-21 11:28:05,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:28:05,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2092 states. [2020-09-21 11:28:05,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2092 to 1786. [2020-09-21 11:28:05,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1786 states. [2020-09-21 11:28:05,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 2395 transitions. [2020-09-21 11:28:05,328 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 2395 transitions. Word has length 175 [2020-09-21 11:28:05,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:05,329 INFO L479 AbstractCegarLoop]: Abstraction has 1786 states and 2395 transitions. [2020-09-21 11:28:05,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:28:05,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 2395 transitions. [2020-09-21 11:28:05,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-09-21 11:28:05,335 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:28:05,336 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:28:05,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:28:05,336 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:28:05,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:28:05,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1725276182, now seen corresponding path program 1 times [2020-09-21 11:28:05,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:28:05,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1462691695] [2020-09-21 11:28:05,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:28:05,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:05,450 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:05,451 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:05,451 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:05,451 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:05,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 262 [2020-09-21 11:28:05,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:05,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-21 11:28:05,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:05,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:28:05,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:28:05,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-21 11:28:05,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:05,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:28:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:05,530 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:05,530 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:05,530 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:05,531 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:05,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:28:05,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:05,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:28:05,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:28:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:28:05,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:05,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:28:05,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:05,602 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:05,602 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:05,603 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:05,603 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:05,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:28:05,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:05,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 11:28:05,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:05,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:05,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:28:05,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-21 11:28:05,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:05,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-21 11:28:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:05,704 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:05,705 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:05,705 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:05,705 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:05,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-21 11:28:05,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:05,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:28:05,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:05,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:28:05,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-09-21 11:28:05,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:28:05,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:28:05,800 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 112 proven. 85 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-21 11:28:05,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1462691695] [2020-09-21 11:28:05,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:28:05,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:28:05,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453488844] [2020-09-21 11:28:05,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:28:05,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:28:05,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:28:05,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:28:05,804 INFO L87 Difference]: Start difference. First operand 1786 states and 2395 transitions. Second operand 7 states. [2020-09-21 11:28:07,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:07,422 INFO L93 Difference]: Finished difference Result 3727 states and 5011 transitions. [2020-09-21 11:28:07,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:28:07,425 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 249 [2020-09-21 11:28:07,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:07,437 INFO L225 Difference]: With dead ends: 3727 [2020-09-21 11:28:07,437 INFO L226 Difference]: Without dead ends: 1947 [2020-09-21 11:28:07,442 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:28:07,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1947 states. [2020-09-21 11:28:07,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1947 to 1931. [2020-09-21 11:28:07,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1931 states. [2020-09-21 11:28:07,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2558 transitions. [2020-09-21 11:28:07,507 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2558 transitions. Word has length 249 [2020-09-21 11:28:07,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:07,507 INFO L479 AbstractCegarLoop]: Abstraction has 1931 states and 2558 transitions. [2020-09-21 11:28:07,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:28:07,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2558 transitions. [2020-09-21 11:28:07,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-09-21 11:28:07,514 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:28:07,515 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:28:07,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:28:07,515 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:28:07,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:28:07,516 INFO L82 PathProgramCache]: Analyzing trace with hash -474265499, now seen corresponding path program 1 times [2020-09-21 11:28:07,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:28:07,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [191557071] [2020-09-21 11:28:07,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:28:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:07,642 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:07,642 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:07,642 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:07,643 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:07,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-21 11:28:07,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:07,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:28:07,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:07,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:07,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-09-21 11:28:07,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-21 11:28:07,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 11:28:07,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:28:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:07,722 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:07,723 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:07,723 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:07,723 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:07,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:28:07,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:07,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:28:07,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:07,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:28:07,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:07,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:28:07,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:07,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:28:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:07,766 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:07,767 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:07,767 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:07,767 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:07,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:28:07,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:07,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:28:07,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:07,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:28:07,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:07,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-21 11:28:07,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:07,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:28:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:07,831 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:07,831 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:07,831 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:07,833 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:07,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-21 11:28:07,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:07,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:28:07,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:07,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:07,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:28:07,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-21 11:28:07,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:08,091 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 199 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:28:08,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [191557071] [2020-09-21 11:28:08,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:28:08,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:28:08,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455474517] [2020-09-21 11:28:08,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:28:08,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:28:08,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:28:08,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:28:08,095 INFO L87 Difference]: Start difference. First operand 1931 states and 2558 transitions. Second operand 7 states. [2020-09-21 11:28:09,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:09,895 INFO L93 Difference]: Finished difference Result 4029 states and 5458 transitions. [2020-09-21 11:28:09,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:28:09,896 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 268 [2020-09-21 11:28:09,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:09,944 INFO L225 Difference]: With dead ends: 4029 [2020-09-21 11:28:09,944 INFO L226 Difference]: Without dead ends: 2247 [2020-09-21 11:28:09,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:28:09,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2020-09-21 11:28:10,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 2235. [2020-09-21 11:28:10,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2235 states. [2020-09-21 11:28:10,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 2853 transitions. [2020-09-21 11:28:10,021 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 2853 transitions. Word has length 268 [2020-09-21 11:28:10,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:10,022 INFO L479 AbstractCegarLoop]: Abstraction has 2235 states and 2853 transitions. [2020-09-21 11:28:10,022 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:28:10,022 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 2853 transitions. [2020-09-21 11:28:10,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-09-21 11:28:10,031 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:28:10,031 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, 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] [2020-09-21 11:28:10,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:28:10,032 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:28:10,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:28:10,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1041805102, now seen corresponding path program 1 times [2020-09-21 11:28:10,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:28:10,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802157720] [2020-09-21 11:28:10,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:28:10,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:10,136 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:10,136 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:10,136 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:10,136 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:10,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-09-21 11:28:10,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:10,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 11:28:10,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:10,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:10,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 11:28:10,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-09-21 11:28:10,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:10,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:28:10,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:10,219 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:10,219 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:10,220 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:10,220 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:10,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:28:10,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:10,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:28:10,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:10,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:28:10,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:10,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:28:10,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:10,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:28:10,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:10,254 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:10,254 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:10,255 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:10,255 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:10,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-21 11:28:10,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:10,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:28:10,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:10,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:28:10,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:10,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-21 11:28:10,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:28:10,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 11:28:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:10,321 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:10,322 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:10,322 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:10,322 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:10,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:28:10,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:10,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:28:10,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:10,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:10,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:28:10,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-21 11:28:10,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:28:10,606 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:28:10,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1802157720] [2020-09-21 11:28:10,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:28:10,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:28:10,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233032774] [2020-09-21 11:28:10,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:28:10,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:28:10,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:28:10,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:28:10,608 INFO L87 Difference]: Start difference. First operand 2235 states and 2853 transitions. Second operand 7 states. [2020-09-21 11:28:12,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:12,397 INFO L93 Difference]: Finished difference Result 4337 states and 5587 transitions. [2020-09-21 11:28:12,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:28:12,403 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 269 [2020-09-21 11:28:12,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:12,415 INFO L225 Difference]: With dead ends: 4337 [2020-09-21 11:28:12,415 INFO L226 Difference]: Without dead ends: 2251 [2020-09-21 11:28:12,421 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:28:12,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2251 states. [2020-09-21 11:28:12,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2251 to 1804. [2020-09-21 11:28:12,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1804 states. [2020-09-21 11:28:12,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 2174 transitions. [2020-09-21 11:28:12,479 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 2174 transitions. Word has length 269 [2020-09-21 11:28:12,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:12,480 INFO L479 AbstractCegarLoop]: Abstraction has 1804 states and 2174 transitions. [2020-09-21 11:28:12,480 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:28:12,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 2174 transitions. [2020-09-21 11:28:12,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2020-09-21 11:28:12,489 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:28:12,490 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:28:12,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:28:12,491 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:28:12,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:28:12,491 INFO L82 PathProgramCache]: Analyzing trace with hash 960007530, now seen corresponding path program 1 times [2020-09-21 11:28:12,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:28:12,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [90903134] [2020-09-21 11:28:12,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:28:12,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:12,591 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:12,591 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:12,592 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:12,592 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:12,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 332 [2020-09-21 11:28:12,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:12,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:28:12,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:12,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:28:12,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 269 [2020-09-21 11:28:12,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-21 11:28:12,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:12,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:28:12,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:12,700 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:12,700 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:12,701 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:12,701 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:12,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:28:12,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:12,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:28:12,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:12,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:28:12,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:12,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:28:12,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:12,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:28:12,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:12,726 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:12,726 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:12,726 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:12,726 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:12,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:28:12,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:12,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:28:12,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:12,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:28:12,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:12,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:28:12,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:12,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:28:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:28:12,812 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:28:12,813 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:28:12,813 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:28:12,813 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:28:12,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-09-21 11:28:12,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:28:12,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:28:12,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:28:12,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:28:12,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:28:12,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-09-21 11:28:12,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:28:13,026 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-09-21 11:28:13,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [90903134] [2020-09-21 11:28:13,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:28:13,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:28:13,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906758545] [2020-09-21 11:28:13,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:28:13,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:28:13,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:28:13,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:28:13,029 INFO L87 Difference]: Start difference. First operand 1804 states and 2174 transitions. Second operand 5 states. [2020-09-21 11:28:14,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:28:14,402 INFO L93 Difference]: Finished difference Result 3753 states and 4624 transitions. [2020-09-21 11:28:14,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:28:14,403 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 319 [2020-09-21 11:28:14,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:28:14,404 INFO L225 Difference]: With dead ends: 3753 [2020-09-21 11:28:14,405 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:28:14,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:28:14,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:28:14,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:28:14,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:28:14,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:28:14,413 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 319 [2020-09-21 11:28:14,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:28:14,414 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:28:14,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:28:14,414 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:28:14,414 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:28:14,414 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:28:14,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:28:15,025 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 80 [2020-09-21 11:28:15,187 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 80 [2020-09-21 11:28:15,684 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 48 [2020-09-21 11:28:15,857 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 44 [2020-09-21 11:28:16,030 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 44 [2020-09-21 11:28:16,034 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:28:16,035 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) [2020-09-21 11:28:16,035 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:28:16,035 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-09-21 11:28:16,035 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,035 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,036 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,036 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,036 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,036 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,036 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-09-21 11:28:16,037 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-09-21 11:28:16,037 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-09-21 11:28:16,037 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-09-21 11:28:16,037 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-21 11:28:16,037 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-09-21 11:28:16,037 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-21 11:28:16,037 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-21 11:28:16,038 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-09-21 11:28:16,038 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-09-21 11:28:16,038 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-09-21 11:28:16,038 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,038 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,038 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,038 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,038 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,039 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-09-21 11:28:16,039 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-09-21 11:28:16,039 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-09-21 11:28:16,039 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-09-21 11:28:16,039 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-09-21 11:28:16,039 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-21 11:28:16,039 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-21 11:28:16,039 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-09-21 11:28:16,039 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-21 11:28:16,040 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-09-21 11:28:16,040 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-09-21 11:28:16,040 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-09-21 11:28:16,040 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-09-21 11:28:16,040 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-09-21 11:28:16,040 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-09-21 11:28:16,040 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,040 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,040 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,041 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,041 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,041 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-09-21 11:28:16,041 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-09-21 11:28:16,041 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-09-21 11:28:16,041 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-09-21 11:28:16,041 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-09-21 11:28:16,042 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-09-21 11:28:16,042 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-09-21 11:28:16,042 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-09-21 11:28:16,042 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-09-21 11:28:16,042 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-09-21 11:28:16,042 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,042 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,043 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,043 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,043 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,043 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-09-21 11:28:16,043 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-09-21 11:28:16,043 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-09-21 11:28:16,043 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-09-21 11:28:16,044 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-09-21 11:28:16,044 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-21 11:28:16,044 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-21 11:28:16,044 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-21 11:28:16,044 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-09-21 11:28:16,044 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-09-21 11:28:16,044 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-09-21 11:28:16,044 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-09-21 11:28:16,045 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-09-21 11:28:16,045 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,045 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,045 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,045 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,045 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,045 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-09-21 11:28:16,046 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-21 11:28:16,046 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-21 11:28:16,046 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-21 11:28:16,046 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-21 11:28:16,046 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-09-21 11:28:16,046 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-09-21 11:28:16,046 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-09-21 11:28:16,047 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-09-21 11:28:16,047 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,047 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,047 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,047 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,047 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,047 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,047 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,047 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-09-21 11:28:16,047 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-09-21 11:28:16,048 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-09-21 11:28:16,048 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-09-21 11:28:16,048 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-09-21 11:28:16,048 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-09-21 11:28:16,048 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-21 11:28:16,048 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-09-21 11:28:16,048 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-21 11:28:16,048 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-09-21 11:28:16,049 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-09-21 11:28:16,049 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-09-21 11:28:16,049 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-09-21 11:28:16,049 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,049 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,049 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,049 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,050 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-09-21 11:28:16,050 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,050 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,050 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-09-21 11:28:16,050 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-09-21 11:28:16,050 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-09-21 11:28:16,050 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-09-21 11:28:16,050 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-09-21 11:28:16,051 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-09-21 11:28:16,051 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-09-21 11:28:16,051 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-21 11:28:16,051 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-21 11:28:16,051 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-09-21 11:28:16,051 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-09-21 11:28:16,051 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-09-21 11:28:16,051 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-09-21 11:28:16,052 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,052 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,052 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,052 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,052 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,052 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,052 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-09-21 11:28:16,052 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-09-21 11:28:16,052 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-09-21 11:28:16,053 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-09-21 11:28:16,053 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-09-21 11:28:16,053 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-09-21 11:28:16,053 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-21 11:28:16,053 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-21 11:28:16,053 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-21 11:28:16,053 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-09-21 11:28:16,053 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-09-21 11:28:16,054 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse2 (not (<= |old(~a19~0)| 9))) (.cse1 (not (= |old(~a10~0)| 1))) (.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)))) (and (or (not (<= 9 |old(~a19~0)|)) .cse0 .cse1) (or .cse0 .cse2 (not (= 2 |old(~a10~0)|))) (or .cse0 .cse2 (= 8 |old(~a19~0)|)) (or (not (<= |old(~a10~0)| 0)) .cse0) (or .cse0 .cse2 (not (= 4 |old(~a10~0)|))) (or (not (<= 331498 |old(~a1~0)|)) .cse1 .cse0 (not (= 14 ~a4~0)) (not (= ~a12~0 0))))) [2020-09-21 11:28:16,054 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-09-21 11:28:16,054 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-09-21 11:28:16,054 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-09-21 11:28:16,054 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,054 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,055 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,055 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,055 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,055 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,055 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-09-21 11:28:16,055 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-09-21 11:28:16,055 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-09-21 11:28:16,055 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-09-21 11:28:16,056 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-09-21 11:28:16,056 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-21 11:28:16,056 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-21 11:28:16,056 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-09-21 11:28:16,056 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-09-21 11:28:16,056 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-09-21 11:28:16,056 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-09-21 11:28:16,057 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-09-21 11:28:16,057 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-09-21 11:28:16,057 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,057 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,057 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,057 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,057 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,058 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,058 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-09-21 11:28:16,058 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-09-21 11:28:16,058 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-09-21 11:28:16,058 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-09-21 11:28:16,058 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-21 11:28:16,058 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-09-21 11:28:16,058 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-21 11:28:16,059 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-09-21 11:28:16,059 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-21 11:28:16,059 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-09-21 11:28:16,059 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-09-21 11:28:16,059 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-09-21 11:28:16,059 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,059 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,059 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,060 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,060 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,060 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:28:16,060 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-09-21 11:28:16,060 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-09-21 11:28:16,060 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-09-21 11:28:16,060 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-09-21 11:28:16,060 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-09-21 11:28:16,061 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-09-21 11:28:16,061 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-09-21 11:28:16,061 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-09-21 11:28:16,061 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-21 11:28:16,061 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-09-21 11:28:16,061 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-09-21 11:28:16,061 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-09-21 11:28:16,061 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:28:16,062 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 23 ~a1~0) (<= 9 ~a19~0) (<= ~a19~0 9) (<= ~a1~0 23)) [2020-09-21 11:28:16,062 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 11:28:16,062 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:28:16,062 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (and (<= 23 ~a1~0) (<= 9 ~a19~0) (<= ~a19~0 9) (<= ~a1~0 23) (= ~a10~0 |old(~a10~0)|))) [2020-09-21 11:28:16,062 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-09-21 11:28:16,062 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (= ~a10~0 1)) (.cse1 (<= ~a19~0 9))) (or (not (<= 23 |old(~a1~0)|)) (and (<= 331498 ~a1~0) .cse0 (= 14 ~a4~0) (= ~a12~0 0)) (<= ~a10~0 0) (not (<= |old(~a10~0)| 0)) (and (not (= ~a19~0 8)) .cse1) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (and (= ~a10~0 2) .cse1) (and .cse0 (<= 9 ~a19~0)) (and .cse1 (= ~a10~0 4)))) [2020-09-21 11:28:16,063 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-09-21 11:28:16,063 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-09-21 11:28:16,063 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (= ~a10~0 1)) (.cse1 (<= ~a19~0 9))) (or (not (<= 23 |old(~a1~0)|)) (and (<= 331498 ~a1~0) .cse0 (= 14 ~a4~0) (= ~a12~0 0)) (<= ~a10~0 0) (not (<= |old(~a10~0)| 0)) (and (not (= ~a19~0 8)) .cse1) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (and (= ~a10~0 2) .cse1) (and .cse0 (<= 9 ~a19~0)) (and .cse1 (= ~a10~0 4)))) [2020-09-21 11:28:16,063 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-09-21 11:28:16,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:28:16 BoogieIcfgContainer [2020-09-21 11:28:16,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:28:16,097 INFO L168 Benchmark]: Toolchain (without parser) took 25700.90 ms. Allocated memory was 138.9 MB in the beginning and 541.1 MB in the end (delta: 402.1 MB). Free memory was 99.3 MB in the beginning and 143.0 MB in the end (delta: -43.7 MB). Peak memory consumption was 358.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:28:16,097 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:28:16,099 INFO L168 Benchmark]: CACSL2BoogieTranslator took 798.19 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 98.6 MB in the beginning and 168.5 MB in the end (delta: -69.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:28:16,099 INFO L168 Benchmark]: Boogie Preprocessor took 127.06 ms. Allocated memory is still 202.4 MB. Free memory was 168.5 MB in the beginning and 163.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:28:16,105 INFO L168 Benchmark]: RCFGBuilder took 1428.80 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 163.6 MB in the beginning and 178.5 MB in the end (delta: -15.0 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:28:16,109 INFO L168 Benchmark]: TraceAbstraction took 23335.60 ms. Allocated memory was 234.4 MB in the beginning and 541.1 MB in the end (delta: 306.7 MB). Free memory was 177.1 MB in the beginning and 143.0 MB in the end (delta: 34.1 MB). Peak memory consumption was 340.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:28:16,116 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 798.19 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 98.6 MB in the beginning and 168.5 MB in the end (delta: -69.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.06 ms. Allocated memory is still 202.4 MB. Free memory was 168.5 MB in the beginning and 163.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1428.80 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 163.6 MB in the beginning and 178.5 MB in the end (delta: -15.0 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23335.60 ms. Allocated memory was 234.4 MB in the beginning and 541.1 MB in the end (delta: 306.7 MB). Free memory was 177.1 MB in the beginning and 143.0 MB in the end (delta: 34.1 MB). Peak memory consumption was 340.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 175]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: (((((((((!(23 <= \old(a1)) || (((331498 <= a1 && a10 == 1) && 14 == a4) && a12 == 0)) || a10 <= 0) || !(\old(a10) <= 0)) || (!(a19 == 8) && a19 <= 9)) || !(9 <= \old(a19))) || !(\old(a1) <= 23)) || !(\old(a19) <= 9)) || (a10 == 2 && a19 <= 9)) || (a10 == 1 && 9 <= a19)) || (a19 <= 9 && a10 == 4) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 21.5s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 16.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 240 SDtfs, 3516 SDslu, 342 SDs, 0 SdLazy, 8563 SolverSat, 1183 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2235occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 1119 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 88 PreInvPairs, 118 NumberOfFragments, 335 HoareAnnotationTreeSize, 88 FomulaSimplifications, 33412 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1521 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1774 NumberOfCodeBlocks, 1774 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1765 ConstructedInterpolants, 0 QuantifiedInterpolants, 1074453 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 945/1037 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...