/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --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/recursive-simple/id_i15_o15-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:58:55,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:58:55,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:58:55,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:58:55,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:58:55,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:58:55,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:58:55,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:58:55,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:58:55,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:58:55,545 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:58:55,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:58:55,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:58:55,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:58:55,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:58:55,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:58:55,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:58:55,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:58:55,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:58:55,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:58:55,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:58:55,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:58:55,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:58:55,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:58:55,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:58:55,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:58:55,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:58:55,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:58:55,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:58:55,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:58:55,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:58:55,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:58:55,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:58:55,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:58:55,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:58:55,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:58:55,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:58:55,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:58:55,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:58:55,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:58:55,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:58:55,601 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 15:58:55,637 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:58:55,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:58:55,639 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:58:55,639 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:58:55,639 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:58:55,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:58:55,640 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:58:55,640 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:58:55,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:58:55,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:58:55,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:58:55,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:58:55,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:58:55,641 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:58:55,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:58:55,642 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:58:55,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:58:55,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:58:55,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:58:55,642 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:58:55,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:58:55,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:58:55,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:58:55,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:58:55,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:58:55,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:58:55,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:58:55,644 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:58:55,645 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:58:55,645 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement 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; [2020-09-24 15:58:56,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:58:56,180 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:58:56,185 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:58:56,187 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:58:56,189 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:58:56,190 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i15_o15-1.c [2020-09-24 15:58:56,289 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e2816d5a/e439f0ac3caa4aaa9af7b3e7f2e0af2a/FLAG0673b2c69 [2020-09-24 15:58:56,859 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:58:56,862 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i15_o15-1.c [2020-09-24 15:58:56,871 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e2816d5a/e439f0ac3caa4aaa9af7b3e7f2e0af2a/FLAG0673b2c69 [2020-09-24 15:58:57,207 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8e2816d5a/e439f0ac3caa4aaa9af7b3e7f2e0af2a [2020-09-24 15:58:57,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:58:57,227 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:58:57,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:58:57,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:58:57,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:58:57,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:58:57" (1/1) ... [2020-09-24 15:58:57,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c364e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:57, skipping insertion in model container [2020-09-24 15:58:57,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:58:57" (1/1) ... [2020-09-24 15:58:57,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:58:57,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:58:57,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:58:57,487 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:58:57,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:58:57,523 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:58:57,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:57 WrapperNode [2020-09-24 15:58:57,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:58:57,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:58:57,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:58:57,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:58:57,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:57" (1/1) ... [2020-09-24 15:58:57,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:57" (1/1) ... [2020-09-24 15:58:57,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:57" (1/1) ... [2020-09-24 15:58:57,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:57" (1/1) ... [2020-09-24 15:58:57,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:57" (1/1) ... [2020-09-24 15:58:57,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:57" (1/1) ... [2020-09-24 15:58:57,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:57" (1/1) ... [2020-09-24 15:58:57,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:58:57,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:58:57,556 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:58:57,556 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:58:57,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:57" (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 [2020-09-24 15:58:57,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:58:57,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:58:57,713 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-24 15:58:57,713 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:58:57,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:58:57,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:58:57,714 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-24 15:58:57,714 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:58:57,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:58:57,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:58:57,904 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:58:57,904 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 15:58:57,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:58:57 BoogieIcfgContainer [2020-09-24 15:58:57,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:58:57,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:58:57,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:58:57,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:58:57,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:58:57" (1/3) ... [2020-09-24 15:58:57,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44fafe12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:58:57, skipping insertion in model container [2020-09-24 15:58:57,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:58:57" (2/3) ... [2020-09-24 15:58:57,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44fafe12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:58:57, skipping insertion in model container [2020-09-24 15:58:57,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:58:57" (3/3) ... [2020-09-24 15:58:57,921 INFO L109 eAbstractionObserver]: Analyzing ICFG id_i15_o15-1.c [2020-09-24 15:58:57,933 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:58:57,942 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:58:57,964 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:58:57,995 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:58:57,995 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:58:57,996 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:58:57,996 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:58:57,996 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:58:57,996 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:58:57,996 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:58:57,997 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:58:58,017 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-09-24 15:58:58,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 15:58:58,024 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:58:58,025 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:58:58,026 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:58:58,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:58:58,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1037734449, now seen corresponding path program 1 times [2020-09-24 15:58:58,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:58:58,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1470735280] [2020-09-24 15:58:58,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:58:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:58,189 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:58,189 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:58,189 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:58,190 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:58,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 15:58:58,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:58,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 15:58:58,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:58,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:58:58,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:58:58,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:58:58,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:58,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:58:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:58,245 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:58,245 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:58,246 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:58,246 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:58,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:58:58,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:58,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:58,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:58,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:58,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:58,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:58,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:58,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:58:58,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:58,303 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:58,304 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:58,304 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:58,304 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:58,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:58,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:58,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 15:58:58,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:58,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:58:58,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:58:58,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:58:58,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:58,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:58:58,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1470735280] [2020-09-24 15:58:58,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:58:58,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:58:58,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862418222] [2020-09-24 15:58:58,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:58:58,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:58:58,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:58:58,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:58:58,403 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states. [2020-09-24 15:58:58,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:58:58,530 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-24 15:58:58,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:58:58,532 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 15:58:58,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:58:58,544 INFO L225 Difference]: With dead ends: 37 [2020-09-24 15:58:58,545 INFO L226 Difference]: Without dead ends: 23 [2020-09-24 15:58:58,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:58:58,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-09-24 15:58:58,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-09-24 15:58:58,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-09-24 15:58:58,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-09-24 15:58:58,599 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16 [2020-09-24 15:58:58,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:58:58,600 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-09-24 15:58:58,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:58:58,600 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-09-24 15:58:58,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-24 15:58:58,603 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:58:58,603 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:58:58,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:58:58,604 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:58:58,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:58:58,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1478812441, now seen corresponding path program 1 times [2020-09-24 15:58:58,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:58:58,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648817808] [2020-09-24 15:58:58,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:58:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:58,643 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:58,644 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:58,644 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:58,644 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:58,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-24 15:58:58,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:58,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:58:58,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:58,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:58:58,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:58:58,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 15:58:58,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:58,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:58:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:58,698 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:58,698 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:58,699 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:58,699 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:58,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:58:58,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:58,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:58,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:58,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:58,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:58,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:58,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:58,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:58:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:58,729 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:58,729 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:58,730 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:58,730 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:58,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:58:58,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:58,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:58:58,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:58:58,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:58:58,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 15:58:58,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:58,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:58:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:58,816 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:58,816 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:58,817 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:58,817 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:58,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:58,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:58,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:58:58,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:58,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:58:58,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:58,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:58:58,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:58,882 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 15:58:58,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1648817808] [2020-09-24 15:58:58,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:58:58,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 15:58:58,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807651789] [2020-09-24 15:58:58,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:58:58,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:58:58,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:58:58,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:58:58,891 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 7 states. [2020-09-24 15:58:58,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:58:58,991 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-09-24 15:58:58,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 15:58:58,992 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-09-24 15:58:58,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:58:58,994 INFO L225 Difference]: With dead ends: 34 [2020-09-24 15:58:58,994 INFO L226 Difference]: Without dead ends: 28 [2020-09-24 15:58:58,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:58:58,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-24 15:58:59,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-24 15:58:59,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 15:58:59,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-09-24 15:58:59,003 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 24 [2020-09-24 15:58:59,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:58:59,004 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-09-24 15:58:59,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:58:59,004 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-09-24 15:58:59,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-24 15:58:59,005 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:58:59,005 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:58:59,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:58:59,006 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:58:59,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:58:59,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1463730447, now seen corresponding path program 2 times [2020-09-24 15:58:59,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:58:59,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068245693] [2020-09-24 15:58:59,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:58:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:59,044 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:59,044 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:59,044 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:59,044 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:59,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 15:58:59,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:59,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 15:58:59,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:58:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:58:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 15:58:59,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:59,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:58:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:59,090 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:59,090 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:59,091 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:59,093 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:59,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:58:59,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:59,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:58:59,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:59,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:59,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:59,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:59,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:59,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:58:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:59,143 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:59,143 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:59,143 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:59,144 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:59,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:58:59,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:59,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 15:58:59,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:59,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:58:59,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:58:59,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 15:58:59,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:59,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:58:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:59,199 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:59,200 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:59,200 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:59,200 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:59,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:58:59,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:59,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:58:59,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:59,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:58:59,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:59,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:58:59,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:59,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:58:59,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:59,263 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:59,263 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:59,264 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:59,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:59,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:59,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:59,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:58:59,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:59,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:58:59,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:59,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:58:59,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:59,306 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 15:58:59,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068245693] [2020-09-24 15:58:59,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:58:59,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 15:58:59,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104770192] [2020-09-24 15:58:59,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:58:59,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:58:59,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:58:59,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:58:59,310 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 8 states. [2020-09-24 15:58:59,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:58:59,421 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-24 15:58:59,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:58:59,422 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2020-09-24 15:58:59,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:58:59,424 INFO L225 Difference]: With dead ends: 39 [2020-09-24 15:58:59,424 INFO L226 Difference]: Without dead ends: 33 [2020-09-24 15:58:59,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:58:59,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-24 15:58:59,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-24 15:58:59,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-24 15:58:59,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-09-24 15:58:59,441 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 32 [2020-09-24 15:58:59,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:58:59,442 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-09-24 15:58:59,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:58:59,442 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-09-24 15:58:59,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-24 15:58:59,444 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:58:59,444 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:58:59,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:58:59,444 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:58:59,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:58:59,445 INFO L82 PathProgramCache]: Analyzing trace with hash 23346727, now seen corresponding path program 3 times [2020-09-24 15:58:59,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:58:59,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1971628692] [2020-09-24 15:58:59,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:58:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:59,482 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:59,483 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:59,483 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:59,483 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:59,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 15:58:59,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:59,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 15:58:59,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:59,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:58:59,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:58:59,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 15:58:59,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:59,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:58:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:59,505 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:59,505 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:59,506 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:59,506 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:59,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:58:59,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:59,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:58:59,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:59,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:59,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:59,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:59,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:59,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:58:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:59,562 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:59,568 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:59,568 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:59,568 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:59,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:58:59,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:59,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 15:58:59,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:59,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:58:59,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:58:59,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 15:58:59,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:59,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:58:59,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:59,639 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:59,640 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:59,640 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:59,640 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:59,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:58:59,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:59,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:58:59,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:59,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:58:59,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:59,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:58:59,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:59,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:58:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:59,682 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:59,682 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:59,682 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:59,683 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:59,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:58:59,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:59,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:58:59,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:58:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:58:59,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:59,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:58:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:59,712 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:59,712 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:59,712 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:59,713 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:59,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:58:59,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:59,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:58:59,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:59,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:58:59,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:59,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:58:59,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:58:59,733 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 15:58:59,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1971628692] [2020-09-24 15:58:59,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:58:59,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 15:58:59,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122199705] [2020-09-24 15:58:59,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:58:59,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:58:59,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:58:59,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:58:59,735 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 8 states. [2020-09-24 15:58:59,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:58:59,812 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-09-24 15:58:59,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 15:58:59,812 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2020-09-24 15:58:59,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:58:59,814 INFO L225 Difference]: With dead ends: 44 [2020-09-24 15:58:59,814 INFO L226 Difference]: Without dead ends: 38 [2020-09-24 15:58:59,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:58:59,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-24 15:58:59,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-24 15:58:59,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-24 15:58:59,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-24 15:58:59,823 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 40 [2020-09-24 15:58:59,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:58:59,823 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-24 15:58:59,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:58:59,824 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-24 15:58:59,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-24 15:58:59,825 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:58:59,825 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:58:59,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:58:59,826 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:58:59,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:58:59,826 INFO L82 PathProgramCache]: Analyzing trace with hash -649675855, now seen corresponding path program 4 times [2020-09-24 15:58:59,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:58:59,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [519325494] [2020-09-24 15:58:59,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:58:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:59,865 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:59,865 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:59,865 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:59,865 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:59,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 15:58:59,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:59,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 15:58:59,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:59,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:58:59,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:58:59,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 15:58:59,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:59,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:58:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:59,891 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:59,891 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:59,892 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:59,892 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:59,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:58:59,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:59,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:58:59,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:59,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:58:59,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:58:59,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:58:59,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:59,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:58:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:58:59,940 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:58:59,940 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:58:59,940 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:58:59,941 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:58:59,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:58:59,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:58:59,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 15:58:59,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:58:59,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:58:59,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:58:59,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 15:58:59,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:58:59,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:00,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,025 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,025 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,025 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,026 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:00,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 15:59:00,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:00,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:00,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:00,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:00,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:00,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,071 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,072 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,072 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,072 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:00,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:59:00,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:00,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:00,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:00,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:00,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,111 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,112 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,112 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,112 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:00,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:00,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:00,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:00,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:00,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:00,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,154 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,154 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,154 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,155 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:00,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:00,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:00,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:00,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:00,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:00,195 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 7 proven. 44 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-24 15:59:00,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [519325494] [2020-09-24 15:59:00,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:00,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 15:59:00,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206461689] [2020-09-24 15:59:00,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:59:00,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:00,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:59:00,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:59:00,198 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 11 states. [2020-09-24 15:59:00,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:00,312 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-09-24 15:59:00,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 15:59:00,312 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 48 [2020-09-24 15:59:00,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:00,314 INFO L225 Difference]: With dead ends: 49 [2020-09-24 15:59:00,314 INFO L226 Difference]: Without dead ends: 43 [2020-09-24 15:59:00,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2020-09-24 15:59:00,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-24 15:59:00,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-09-24 15:59:00,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-24 15:59:00,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-09-24 15:59:00,324 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 48 [2020-09-24 15:59:00,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:00,325 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-09-24 15:59:00,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:59:00,325 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-09-24 15:59:00,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-24 15:59:00,327 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:00,327 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:00,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:59:00,328 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:00,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:00,328 INFO L82 PathProgramCache]: Analyzing trace with hash 899977063, now seen corresponding path program 5 times [2020-09-24 15:59:00,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:00,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [334067166] [2020-09-24 15:59:00,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,375 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,376 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,376 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,376 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-24 15:59:00,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 15:59:00,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:59:00,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:00,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:59:00,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:00,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,400 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,400 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,400 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,401 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:00,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:00,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:00,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:00,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:00,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:00,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,454 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,455 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,455 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,455 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:00,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 15:59:00,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:59:00,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:00,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 15:59:00,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:00,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,513 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,513 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,514 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,514 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:00,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:59:00,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:00,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:00,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:00,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:00,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,569 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,570 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,570 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,570 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:00,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 15:59:00,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:00,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:00,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:00,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:00,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,608 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,608 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,608 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,608 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:00,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:59:00,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:00,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:00,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:00,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:00,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,644 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,644 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,644 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,644 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:00,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:00,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:00,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:00,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:00,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:00,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,669 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,669 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,669 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,670 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:00,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:00,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:00,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:00,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:00,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:00,696 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 6 proven. 69 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-24 15:59:00,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [334067166] [2020-09-24 15:59:00,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:00,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 15:59:00,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130762106] [2020-09-24 15:59:00,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:59:00,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:00,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:59:00,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:59:00,699 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 11 states. [2020-09-24 15:59:00,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:00,809 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2020-09-24 15:59:00,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 15:59:00,810 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-09-24 15:59:00,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:00,812 INFO L225 Difference]: With dead ends: 54 [2020-09-24 15:59:00,812 INFO L226 Difference]: Without dead ends: 48 [2020-09-24 15:59:00,813 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-09-24 15:59:00,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-24 15:59:00,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-24 15:59:00,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-24 15:59:00,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-09-24 15:59:00,820 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 56 [2020-09-24 15:59:00,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:00,821 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-09-24 15:59:00,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:59:00,821 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-09-24 15:59:00,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-24 15:59:00,823 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:00,823 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:00,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 15:59:00,824 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:00,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:00,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1000802417, now seen corresponding path program 6 times [2020-09-24 15:59:00,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:00,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024098525] [2020-09-24 15:59:00,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,871 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,871 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,872 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,872 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:59:00,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 15:59:00,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:59:00,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:00,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 15:59:00,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:00,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,894 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,895 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,895 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,895 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:00,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:00,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:00,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:00,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:00,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:00,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:00,947 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:00,947 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:00,947 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:00,948 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:00,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:00,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:00,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 15:59:00,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:00,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:59:00,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:00,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 15:59:00,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:00,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,014 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,015 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,015 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,015 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:01,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 15:59:01,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:01,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:01,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:01,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,067 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,068 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,068 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,068 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:01,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 15:59:01,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:01,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:01,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:01,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,111 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,111 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,112 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,112 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:01,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:59:01,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:01,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:01,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:01,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,148 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,148 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,148 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,149 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:01,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:01,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:01,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:01,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:01,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,178 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,178 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,178 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,179 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:01,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:01,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:01,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:01,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:01,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,212 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,213 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,213 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,213 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:01,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:01,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:01,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:01,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:01,256 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 10 proven. 88 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-09-24 15:59:01,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024098525] [2020-09-24 15:59:01,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:01,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 15:59:01,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116558587] [2020-09-24 15:59:01,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 15:59:01,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:01,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 15:59:01,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:59:01,259 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 12 states. [2020-09-24 15:59:01,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:01,379 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-24 15:59:01,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 15:59:01,379 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 64 [2020-09-24 15:59:01,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:01,381 INFO L225 Difference]: With dead ends: 59 [2020-09-24 15:59:01,381 INFO L226 Difference]: Without dead ends: 53 [2020-09-24 15:59:01,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342 [2020-09-24 15:59:01,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-24 15:59:01,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-24 15:59:01,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-24 15:59:01,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2020-09-24 15:59:01,390 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 64 [2020-09-24 15:59:01,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:01,390 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2020-09-24 15:59:01,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 15:59:01,391 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2020-09-24 15:59:01,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-24 15:59:01,392 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:01,392 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:01,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 15:59:01,393 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:01,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:01,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1977618599, now seen corresponding path program 7 times [2020-09-24 15:59:01,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:01,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1390807036] [2020-09-24 15:59:01,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,449 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,449 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,449 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,450 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-24 15:59:01,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 15:59:01,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 15:59:01,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:01,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-24 15:59:01,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:01,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,471 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,471 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,471 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,471 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:01,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:01,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:01,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:01,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:01,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:01,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,527 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,528 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,528 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,528 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:01,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 15:59:01,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 15:59:01,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:01,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 15:59:01,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:01,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,608 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,608 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,608 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,608 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:01,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 15:59:01,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:01,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:01,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:01,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,677 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,677 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,677 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,677 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:01,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 15:59:01,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:01,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:01,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:01,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,729 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,730 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,730 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,730 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:01,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 15:59:01,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:01,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:01,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:01,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:01,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,774 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,774 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,774 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,774 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:01,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:59:01,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:01,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:01,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:01,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:01,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,812 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,812 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,812 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,813 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:01,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:59:01,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:01,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:01,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:01,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,847 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,848 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,848 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,848 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:01,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:01,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:01,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:01,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:01,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:01,874 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:01,874 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:01,874 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:01,875 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:01,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:01,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:01,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:01,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:01,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:01,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:01,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:01,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:01,922 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 16 proven. 131 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-09-24 15:59:01,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1390807036] [2020-09-24 15:59:01,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:01,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 15:59:01,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127489043] [2020-09-24 15:59:01,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 15:59:01,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:01,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 15:59:01,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-24 15:59:01,925 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 13 states. [2020-09-24 15:59:02,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:02,053 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-09-24 15:59:02,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 15:59:02,054 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 72 [2020-09-24 15:59:02,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:02,055 INFO L225 Difference]: With dead ends: 64 [2020-09-24 15:59:02,056 INFO L226 Difference]: Without dead ends: 58 [2020-09-24 15:59:02,056 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-09-24 15:59:02,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-24 15:59:02,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-24 15:59:02,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-24 15:59:02,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-24 15:59:02,064 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 72 [2020-09-24 15:59:02,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:02,064 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-24 15:59:02,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 15:59:02,065 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-24 15:59:02,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-24 15:59:02,066 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:02,066 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:02,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 15:59:02,067 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:02,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:02,067 INFO L82 PathProgramCache]: Analyzing trace with hash 555623729, now seen corresponding path program 8 times [2020-09-24 15:59:02,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:02,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1390868594] [2020-09-24 15:59:02,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,126 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,126 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,126 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,126 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-24 15:59:02,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 15:59:02,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 15:59:02,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:02,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 15:59:02,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:02,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,160 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,160 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,161 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,161 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:02,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:02,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:02,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:02,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:02,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:02,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,235 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,236 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,236 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,236 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:59:02,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 15:59:02,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 15:59:02,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:02,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 15:59:02,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:02,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:02,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,360 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,361 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,361 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,361 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:02,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 15:59:02,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:02,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:02,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:02,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:02,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,447 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,447 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,447 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,447 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:02,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 15:59:02,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:02,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:02,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:02,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:02,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,514 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,514 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,514 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,515 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:02,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 15:59:02,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:02,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:02,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:02,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:02,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,563 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,563 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,564 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,564 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:02,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 15:59:02,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:02,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:02,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:02,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:02,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,606 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,607 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,607 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,607 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:02,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:59:02,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:02,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:02,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:02,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:02,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,646 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,646 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,647 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,647 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:02,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:59:02,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:02,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:02,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:02,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:02,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,700 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,700 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,701 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,701 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:02,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:02,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:02,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:02,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:02,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:02,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:02,742 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:02,742 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:02,743 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:02,743 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:02,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:02,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:02,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:59:02,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:02,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:02,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:02,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:02,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:02,835 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 24 proven. 169 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-09-24 15:59:02,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1390868594] [2020-09-24 15:59:02,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:02,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 15:59:02,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705568619] [2020-09-24 15:59:02,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 15:59:02,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:02,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 15:59:02,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-09-24 15:59:02,846 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 15 states. [2020-09-24 15:59:03,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:03,064 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2020-09-24 15:59:03,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 15:59:03,065 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 80 [2020-09-24 15:59:03,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:03,066 INFO L225 Difference]: With dead ends: 69 [2020-09-24 15:59:03,067 INFO L226 Difference]: Without dead ends: 63 [2020-09-24 15:59:03,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=191, Invalid=361, Unknown=0, NotChecked=0, Total=552 [2020-09-24 15:59:03,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-24 15:59:03,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-09-24 15:59:03,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-24 15:59:03,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-09-24 15:59:03,086 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 80 [2020-09-24 15:59:03,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:03,087 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-09-24 15:59:03,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 15:59:03,087 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-09-24 15:59:03,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-24 15:59:03,089 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:03,089 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:03,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 15:59:03,091 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:03,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:03,091 INFO L82 PathProgramCache]: Analyzing trace with hash 777699815, now seen corresponding path program 9 times [2020-09-24 15:59:03,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:03,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891513040] [2020-09-24 15:59:03,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,168 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,168 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,168 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,168 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-24 15:59:03,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 15:59:03,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 15:59:03,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:03,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 15:59:03,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:03,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,196 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,197 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,197 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,197 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:03,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:03,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:03,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:03,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:03,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:03,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:03,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,314 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,314 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,314 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,314 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:03,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 15:59:03,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 15:59:03,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:03,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-24 15:59:03,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:03,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,450 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,451 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,451 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,451 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:59:03,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 15:59:03,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:03,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:03,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:59:03,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:03,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,532 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,533 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,533 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,533 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:03,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 15:59:03,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:03,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:03,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:03,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:03,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,607 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,607 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,607 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,607 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:03,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 15:59:03,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:03,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:03,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:03,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:03,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,667 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,667 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,667 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,668 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:03,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 15:59:03,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:03,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:03,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:03,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:03,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,752 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,752 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,752 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,752 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:03,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 15:59:03,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:03,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:03,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:03,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:03,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:03,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,796 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,797 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,797 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,797 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:03,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:59:03,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:03,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:03,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:03,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:03,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,835 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,836 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,836 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,836 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:03,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:03,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:03,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:03,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:03,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:03,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,870 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,870 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,871 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,871 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:03,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:03,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:03,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:03,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:03,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:03,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:03,913 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:03,913 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:03,913 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:03,914 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:03,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:03,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:03,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:03,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:03,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:03,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:03,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:03,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:03,995 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 40 proven. 203 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-09-24 15:59:03,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891513040] [2020-09-24 15:59:03,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:03,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 15:59:03,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411680668] [2020-09-24 15:59:03,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 15:59:03,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:03,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 15:59:03,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-24 15:59:03,998 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 15 states. [2020-09-24 15:59:04,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:04,157 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2020-09-24 15:59:04,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 15:59:04,158 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 88 [2020-09-24 15:59:04,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:04,159 INFO L225 Difference]: With dead ends: 74 [2020-09-24 15:59:04,160 INFO L226 Difference]: Without dead ends: 68 [2020-09-24 15:59:04,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-09-24 15:59:04,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-24 15:59:04,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-24 15:59:04,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-24 15:59:04,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2020-09-24 15:59:04,168 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 88 [2020-09-24 15:59:04,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:04,168 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2020-09-24 15:59:04,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 15:59:04,168 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2020-09-24 15:59:04,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-09-24 15:59:04,169 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:04,170 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:04,170 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 15:59:04,170 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:04,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:04,170 INFO L82 PathProgramCache]: Analyzing trace with hash 2145915377, now seen corresponding path program 10 times [2020-09-24 15:59:04,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:04,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1013037311] [2020-09-24 15:59:04,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,259 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,260 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,260 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,260 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-24 15:59:04,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-24 15:59:04,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 15:59:04,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:04,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 15:59:04,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:04,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,285 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,285 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,285 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,285 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:04,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:04,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:04,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:04,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:04,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:04,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,367 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,367 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,368 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,368 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:04,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 15:59:04,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 15:59:04,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:04,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-24 15:59:04,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:04,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,475 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,476 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,476 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,476 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:04,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-24 15:59:04,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:04,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:04,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:59:04,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:04,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,566 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,567 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,567 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,567 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:59:04,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 15:59:04,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:04,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:04,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:59:04,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:04,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,659 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,659 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,659 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,660 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:04,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 15:59:04,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:04,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:04,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:04,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:04,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,737 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,738 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,738 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:04,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 15:59:04,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:04,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:04,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:04,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:04,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,810 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,811 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,811 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,811 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:04,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 15:59:04,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:04,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:04,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:04,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:04,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,865 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,866 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,866 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:04,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 15:59:04,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:04,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:04,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:04,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:04,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,913 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,914 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,914 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,914 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:04,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:59:04,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:04,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:04,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:04,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:04,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,954 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,955 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,955 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,956 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:04,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:04,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:04,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:04,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:04,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:04,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:04,992 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:04,992 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:04,992 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:04,993 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:04,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:04,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:04,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:04,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:04,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:04,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:04,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:04,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:05,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:05,024 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:05,024 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:05,025 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:05,025 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:05,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:05,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:05,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:05,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:05,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:05,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:05,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:05,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:05,123 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 32 proven. 258 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-09-24 15:59:05,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1013037311] [2020-09-24 15:59:05,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:05,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-24 15:59:05,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448932393] [2020-09-24 15:59:05,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-24 15:59:05,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:05,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-24 15:59:05,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-24 15:59:05,126 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 16 states. [2020-09-24 15:59:05,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:05,293 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-24 15:59:05,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 15:59:05,293 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 96 [2020-09-24 15:59:05,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:05,295 INFO L225 Difference]: With dead ends: 79 [2020-09-24 15:59:05,295 INFO L226 Difference]: Without dead ends: 73 [2020-09-24 15:59:05,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2020-09-24 15:59:05,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-24 15:59:05,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-09-24 15:59:05,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-24 15:59:05,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2020-09-24 15:59:05,303 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 96 [2020-09-24 15:59:05,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:05,303 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2020-09-24 15:59:05,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-24 15:59:05,304 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2020-09-24 15:59:05,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-24 15:59:05,305 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:05,305 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:05,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 15:59:05,305 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:05,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:05,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1180214055, now seen corresponding path program 11 times [2020-09-24 15:59:05,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:05,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098597725] [2020-09-24 15:59:05,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:05,402 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:05,402 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:05,402 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:05,402 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:05,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-24 15:59:05,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:05,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-24 15:59:05,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:05,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 15:59:05,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:05,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-24 15:59:05,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:05,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:05,426 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:05,426 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:05,426 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:05,427 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:05,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:05,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:05,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:05,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:05,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:05,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:05,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:05,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:05,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:05,523 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:05,524 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:05,524 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:05,524 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:05,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 15:59:05,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:05,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 15:59:05,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:05,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 15:59:05,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:05,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-24 15:59:05,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:05,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:05,642 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:05,642 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:05,643 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:05,643 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:05,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:05,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:05,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-24 15:59:05,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:05,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:05,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:05,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:05,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:05,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:05,746 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:05,746 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:05,747 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:05,747 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:05,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:05,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:05,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 15:59:05,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:05,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:05,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:05,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:59:05,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:05,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:05,840 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:05,840 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:05,840 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:05,841 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:05,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:59:05,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:05,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 15:59:05,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:05,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:05,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:05,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:59:05,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:05,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:05,915 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:05,915 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:05,915 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:05,916 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:05,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:05,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:05,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 15:59:05,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:05,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:05,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:05,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:05,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:05,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:05,980 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:05,981 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:05,981 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:05,981 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:05,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:05,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:05,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 15:59:05,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:05,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:05,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:05,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:05,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:06,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:06,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:06,038 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:06,039 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:06,039 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:06,039 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:06,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:06,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:06,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 15:59:06,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:06,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:06,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:06,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:06,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:06,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:06,121 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:06,121 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:06,121 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:06,122 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:06,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:06,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:06,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 15:59:06,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:06,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:06,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:06,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:06,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:06,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:06,164 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:06,164 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:06,164 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:06,165 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:06,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:06,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:06,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:59:06,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:06,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:06,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:06,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:06,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:06,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:06,209 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:06,210 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:06,210 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:06,211 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:06,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:06,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:06,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:59:06,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:06,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:06,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:06,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:06,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:06,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:06,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:06,243 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:06,244 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:06,244 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:06,245 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:06,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:06,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:06,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:06,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:06,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:06,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:06,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:06,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:06,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:06,275 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:06,275 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:06,276 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:06,277 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:06,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:06,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:06,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:59:06,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:06,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:06,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:06,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:06,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:06,396 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 18 proven. 330 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2020-09-24 15:59:06,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1098597725] [2020-09-24 15:59:06,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:06,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 15:59:06,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313958563] [2020-09-24 15:59:06,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 15:59:06,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:06,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 15:59:06,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-09-24 15:59:06,400 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 17 states. [2020-09-24 15:59:06,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:06,648 INFO L93 Difference]: Finished difference Result 84 states and 85 transitions. [2020-09-24 15:59:06,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 15:59:06,648 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 104 [2020-09-24 15:59:06,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:06,650 INFO L225 Difference]: With dead ends: 84 [2020-09-24 15:59:06,650 INFO L226 Difference]: Without dead ends: 78 [2020-09-24 15:59:06,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-09-24 15:59:06,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-24 15:59:06,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-09-24 15:59:06,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-24 15:59:06,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2020-09-24 15:59:06,662 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 104 [2020-09-24 15:59:06,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:06,662 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2020-09-24 15:59:06,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 15:59:06,663 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2020-09-24 15:59:06,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-24 15:59:06,665 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:06,665 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:06,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 15:59:06,666 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:06,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:06,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1287598415, now seen corresponding path program 12 times [2020-09-24 15:59:06,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:06,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [736794075] [2020-09-24 15:59:06,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:06,777 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:06,777 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:06,778 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:06,778 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:06,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-24 15:59:06,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:06,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 15:59:06,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-24 15:59:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 15:59:06,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:06,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:06,805 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:06,806 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:06,806 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:06,806 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:06,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:06,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:06,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:06,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:06,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:06,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:06,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:06,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:06,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:06,922 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:06,923 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:06,923 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:06,923 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:06,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-24 15:59:06,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:06,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 15:59:06,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:06,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-24 15:59:06,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:06,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-24 15:59:06,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:06,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:07,066 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:07,067 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:07,067 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:07,067 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:07,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 15:59:07,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:07,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 15:59:07,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:07,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:07,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:07,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 15:59:07,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:07,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:07,213 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:07,214 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:07,214 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:07,214 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:07,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:07,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:07,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 15:59:07,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:07,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:07,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:07,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:07,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:07,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:07,340 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:07,340 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:07,340 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:07,341 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:07,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:07,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:07,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-24 15:59:07,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:07,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:07,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:07,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:59:07,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:07,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:07,426 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:07,426 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:07,426 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:07,427 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:07,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:59:07,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:07,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 15:59:07,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:07,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:07,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:07,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:59:07,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:07,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:07,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:07,499 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:07,499 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:07,499 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:07,500 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:07,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:07,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:07,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 15:59:07,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:07,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:07,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:07,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:07,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:07,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:07,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:07,561 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:07,561 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:07,561 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:07,562 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:07,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:07,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:07,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 15:59:07,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:07,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:07,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:07,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:07,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:07,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:07,616 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:07,617 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:07,617 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:07,617 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:07,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:07,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:07,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:59:07,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:07,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:07,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:07,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:07,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:07,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:07,664 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:07,664 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:07,665 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:07,665 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:07,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:07,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:07,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 15:59:07,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:07,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:07,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:07,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:07,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:07,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:07,707 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:07,708 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:07,708 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:07,708 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:07,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:07,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:07,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:59:07,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:07,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:07,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:07,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:07,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:07,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:07,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:07,745 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:07,745 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:07,746 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:07,746 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:07,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:07,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:07,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:07,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:07,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:07,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:07,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:07,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:07,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:07,778 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:07,778 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:07,779 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:07,779 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:07,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:07,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:07,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:07,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:07,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:07,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:07,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:07,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:07,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:07,808 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:07,808 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:07,808 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:07,809 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:07,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:07,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:07,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:59:07,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:07,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:07,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:07,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:07,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:07,884 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 4 proven. 392 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-09-24 15:59:07,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [736794075] [2020-09-24 15:59:07,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:07,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-24 15:59:07,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800841166] [2020-09-24 15:59:07,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-24 15:59:07,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:07,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-24 15:59:07,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2020-09-24 15:59:07,887 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand 18 states. [2020-09-24 15:59:08,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:08,091 INFO L93 Difference]: Finished difference Result 89 states and 90 transitions. [2020-09-24 15:59:08,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 15:59:08,092 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 112 [2020-09-24 15:59:08,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:08,093 INFO L225 Difference]: With dead ends: 89 [2020-09-24 15:59:08,093 INFO L226 Difference]: Without dead ends: 83 [2020-09-24 15:59:08,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=597, Unknown=0, NotChecked=0, Total=930 [2020-09-24 15:59:08,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-09-24 15:59:08,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-09-24 15:59:08,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-09-24 15:59:08,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 84 transitions. [2020-09-24 15:59:08,101 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 84 transitions. Word has length 112 [2020-09-24 15:59:08,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:08,101 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 84 transitions. [2020-09-24 15:59:08,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-24 15:59:08,101 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 84 transitions. [2020-09-24 15:59:08,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-09-24 15:59:08,103 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:08,103 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:08,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 15:59:08,103 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:08,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:08,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1612559463, now seen corresponding path program 13 times [2020-09-24 15:59:08,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:08,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1535681110] [2020-09-24 15:59:08,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:08,224 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:08,225 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:08,225 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:08,225 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:08,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-24 15:59:08,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:08,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 15:59:08,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:08,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-24 15:59:08,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:08,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-24 15:59:08,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:08,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:08,266 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:08,266 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:08,266 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:08,267 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:08,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:08,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:08,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:08,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:08,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:08,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:08,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:08,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:08,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:08,392 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:08,393 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:08,393 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:08,393 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:08,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-24 15:59:08,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:08,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 15:59:08,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:08,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-24 15:59:08,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:08,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-24 15:59:08,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:08,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:08,563 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:08,563 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:08,564 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:08,564 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:08,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-24 15:59:08,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:08,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 15:59:08,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:08,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-24 15:59:08,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:08,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:08,700 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:08,701 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:08,701 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:08,701 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:08,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 15:59:08,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:08,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-24 15:59:08,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:08,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:08,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:08,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 15:59:08,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:08,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:08,817 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:08,817 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:08,818 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:08,818 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:08,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:08,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:08,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 15:59:08,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:08,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:08,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:08,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:08,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:08,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:08,908 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:08,908 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:08,909 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:08,909 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:08,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:08,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:08,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 15:59:08,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:08,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:08,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:08,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:59:08,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:08,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:08,991 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:08,992 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:08,992 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:08,992 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:08,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:59:08,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:08,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 15:59:08,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:08,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:08,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:08,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:59:08,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:09,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,062 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,063 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,063 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,063 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:09,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 15:59:09,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:09,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:09,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:09,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:09,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:09,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,129 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,129 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,130 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,130 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:09,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 15:59:09,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:09,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:09,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:09,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:09,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:09,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,187 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,187 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,187 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,188 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:09,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:59:09,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:09,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:09,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:09,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:09,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:09,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,238 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,238 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,238 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,239 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:09,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:59:09,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:09,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:09,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:09,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:09,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,280 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,280 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,280 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,281 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:09,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:09,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:09,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:09,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:09,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:09,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,318 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,318 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,319 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,319 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:09,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:09,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:09,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:09,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:09,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:09,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:09,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,351 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,352 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,352 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,352 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:09,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:59:09,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:09,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:09,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:09,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:09,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,382 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,382 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,383 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,383 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:09,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:59:09,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:09,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:09,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:09,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:09,492 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 28 proven. 481 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2020-09-24 15:59:09,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1535681110] [2020-09-24 15:59:09,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:09,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-24 15:59:09,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139224388] [2020-09-24 15:59:09,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-24 15:59:09,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:09,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-24 15:59:09,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2020-09-24 15:59:09,495 INFO L87 Difference]: Start difference. First operand 83 states and 84 transitions. Second operand 20 states. [2020-09-24 15:59:09,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:09,750 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2020-09-24 15:59:09,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 15:59:09,750 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 120 [2020-09-24 15:59:09,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:09,751 INFO L225 Difference]: With dead ends: 94 [2020-09-24 15:59:09,752 INFO L226 Difference]: Without dead ends: 88 [2020-09-24 15:59:09,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=396, Invalid=726, Unknown=0, NotChecked=0, Total=1122 [2020-09-24 15:59:09,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-24 15:59:09,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2020-09-24 15:59:09,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-09-24 15:59:09,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 89 transitions. [2020-09-24 15:59:09,758 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 89 transitions. Word has length 120 [2020-09-24 15:59:09,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:09,759 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 89 transitions. [2020-09-24 15:59:09,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-24 15:59:09,759 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 89 transitions. [2020-09-24 15:59:09,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-09-24 15:59:09,761 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:09,761 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:09,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 15:59:09,761 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:09,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:09,762 INFO L82 PathProgramCache]: Analyzing trace with hash 996432753, now seen corresponding path program 14 times [2020-09-24 15:59:09,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:09,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600539338] [2020-09-24 15:59:09,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:09,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,881 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,881 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,881 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,882 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-24 15:59:09,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 15:59:09,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-24 15:59:09,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:09,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 15:59:09,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:09,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:09,909 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:09,910 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:09,910 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:09,910 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:09,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:09,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:09,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:09,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:09,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:09,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:09,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:09,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:09,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:10,054 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:10,054 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:10,055 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:10,055 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:10,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-24 15:59:10,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:10,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-24 15:59:10,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:10,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-24 15:59:10,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:10,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-09-24 15:59:10,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:10,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:10,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:10,224 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:10,224 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:10,224 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:10,224 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:10,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-24 15:59:10,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:10,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 15:59:10,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:10,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:10,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:10,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-24 15:59:10,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:10,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:10,381 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:10,382 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:10,382 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:10,383 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:10,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-24 15:59:10,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:10,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 15:59:10,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:10,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:10,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:10,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-24 15:59:10,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:10,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:10,518 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:10,518 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:10,519 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:10,519 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:10,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 15:59:10,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:10,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 15:59:10,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:10,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:10,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:10,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 15:59:10,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:10,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:10,623 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:10,624 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:10,624 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:10,624 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:10,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:10,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:10,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 15:59:10,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:10,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:10,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:10,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:10,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:10,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:10,738 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:10,738 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:10,738 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:10,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:10,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:10,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:10,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 15:59:10,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:10,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:10,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:10,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:59:10,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:10,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:10,827 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:10,828 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:10,828 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:10,828 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:10,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:59:10,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:10,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 15:59:10,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:10,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:10,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:10,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:59:10,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:10,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:10,904 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:10,905 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:10,905 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:10,905 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:10,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:10,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:10,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 15:59:10,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:10,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:10,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:10,965 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:10,965 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:10,965 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:10,966 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:10,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:10,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:10,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 15:59:10,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:10,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:10,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:10,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:10,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:11,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,059 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,059 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,059 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,060 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:11,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 15:59:11,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:11,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:11,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:11,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,107 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,107 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,107 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,108 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:11,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:59:11,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:11,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:11,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:11,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,148 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,149 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,149 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,149 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:11,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:59:11,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:11,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:11,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:11,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:11,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,193 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,193 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,194 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,194 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:11,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:11,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:11,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:11,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:11,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,228 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,229 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,229 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,229 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:11,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:11,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:11,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:11,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:11,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,260 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,260 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,260 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,261 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:11,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:59:11,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:11,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:11,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:11,368 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 69 proven. 531 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2020-09-24 15:59:11,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600539338] [2020-09-24 15:59:11,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:11,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-24 15:59:11,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47062581] [2020-09-24 15:59:11,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-24 15:59:11,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:11,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-24 15:59:11,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2020-09-24 15:59:11,371 INFO L87 Difference]: Start difference. First operand 88 states and 89 transitions. Second operand 21 states. [2020-09-24 15:59:11,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:11,664 INFO L93 Difference]: Finished difference Result 99 states and 100 transitions. [2020-09-24 15:59:11,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 15:59:11,667 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 128 [2020-09-24 15:59:11,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:11,670 INFO L225 Difference]: With dead ends: 99 [2020-09-24 15:59:11,670 INFO L226 Difference]: Without dead ends: 93 [2020-09-24 15:59:11,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=446, Invalid=814, Unknown=0, NotChecked=0, Total=1260 [2020-09-24 15:59:11,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-09-24 15:59:11,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-09-24 15:59:11,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-24 15:59:11,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 94 transitions. [2020-09-24 15:59:11,685 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 94 transitions. Word has length 128 [2020-09-24 15:59:11,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:11,686 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 94 transitions. [2020-09-24 15:59:11,686 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-24 15:59:11,686 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 94 transitions. [2020-09-24 15:59:11,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-24 15:59:11,691 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:11,691 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:11,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 15:59:11,691 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:11,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:11,692 INFO L82 PathProgramCache]: Analyzing trace with hash 418248103, now seen corresponding path program 15 times [2020-09-24 15:59:11,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:11,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104456973] [2020-09-24 15:59:11,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,903 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,903 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,903 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,903 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-24 15:59:11,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-09-24 15:59:11,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-24 15:59:11,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-09-24 15:59:11,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-24 15:59:11,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:11,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,946 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,946 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,946 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,946 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:11,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:59:11,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:11,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:11,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:11,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,086 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,086 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,086 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,086 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-09-24 15:59:12,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-24 15:59:12,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-24 15:59:12,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:12,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-09-24 15:59:12,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:12,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,272 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,273 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,273 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,273 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-24 15:59:12,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-24 15:59:12,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:12,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:12,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-24 15:59:12,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:12,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,454 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,454 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,454 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,454 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-24 15:59:12,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 15:59:12,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:12,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:12,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-09-24 15:59:12,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:12,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,586 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,586 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,586 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,587 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-24 15:59:12,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-24 15:59:12,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:12,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:12,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-24 15:59:12,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:12,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,736 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,736 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,736 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,736 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 15:59:12,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-24 15:59:12,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:12,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:12,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-24 15:59:12,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:12,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:12,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,857 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,857 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,857 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,857 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:12,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 15:59:12,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:12,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:12,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-24 15:59:12,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:12,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,972 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,973 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,973 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,973 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:12,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 15:59:12,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:12,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:12,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 15:59:12,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:13,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,079 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,079 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,080 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,080 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:59:13,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 15:59:13,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:13,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:13,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:13,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,180 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,181 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,181 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,181 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:13,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 15:59:13,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:13,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 15:59:13,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:13,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,279 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,280 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,280 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,280 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:13,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 15:59:13,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:13,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 15:59:13,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:13,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,371 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,372 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,372 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,372 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:13,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 15:59:13,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:13,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 15:59:13,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:13,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,487 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,487 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,487 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,488 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:13,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:59:13,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:13,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 15:59:13,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:13,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,604 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,604 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,605 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:13,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:13,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:13,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 15:59:13,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:13,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,729 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,729 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,730 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,730 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:13,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:13,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:13,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 15:59:13,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:13,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,854 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,854 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,855 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,856 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:13,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:59:13,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:13,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 15:59:13,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:13,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,985 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,986 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,986 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,987 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:13,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:59:13,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:59:13,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:13,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:14,340 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-09-24 15:59:14,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1104456973] [2020-09-24 15:59:14,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:14,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-09-24 15:59:14,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579073686] [2020-09-24 15:59:14,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-09-24 15:59:14,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:14,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-09-24 15:59:14,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2020-09-24 15:59:14,343 INFO L87 Difference]: Start difference. First operand 93 states and 94 transitions. Second operand 35 states. [2020-09-24 15:59:15,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:15,992 INFO L93 Difference]: Finished difference Result 104 states and 105 transitions. [2020-09-24 15:59:15,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-09-24 15:59:15,999 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 136 [2020-09-24 15:59:16,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:16,000 INFO L225 Difference]: With dead ends: 104 [2020-09-24 15:59:16,000 INFO L226 Difference]: Without dead ends: 98 [2020-09-24 15:59:16,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=131, Invalid=2419, Unknown=0, NotChecked=0, Total=2550 [2020-09-24 15:59:16,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-24 15:59:16,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-09-24 15:59:16,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-24 15:59:16,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 99 transitions. [2020-09-24 15:59:16,009 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 99 transitions. Word has length 136 [2020-09-24 15:59:16,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:16,011 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 99 transitions. [2020-09-24 15:59:16,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-09-24 15:59:16,011 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 99 transitions. [2020-09-24 15:59:16,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-09-24 15:59:16,014 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:16,014 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:16,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 15:59:16,015 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:16,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:16,015 INFO L82 PathProgramCache]: Analyzing trace with hash 2106505265, now seen corresponding path program 16 times [2020-09-24 15:59:16,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:16,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1303299146] [2020-09-24 15:59:16,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:16,162 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:16,162 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:16,162 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:16,162 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:16,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-09-24 15:59:16,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:16,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 15:59:16,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:16,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-24 15:59:16,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:59:16,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-24 15:59:16,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:16,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:16,190 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:16,190 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:16,190 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:16,190 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:16,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:16,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:16,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:16,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:16,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:16,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:16,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:16,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:16,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:59:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:16,378 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:16,378 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:16,379 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:16,379 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:16,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-09-24 15:59:16,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:16,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-09-24 15:59:16,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:16,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-09-24 15:59:16,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 15:59:16,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-09-24 15:59:16,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:16,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:16,586 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:16,586 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:16,586 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:16,586 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:16,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-09-24 15:59:16,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:16,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-24 15:59:16,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:16,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:59:16,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:16,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-24 15:59:16,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:16,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:16,761 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:16,761 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:16,761 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:16,762 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:16,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-24 15:59:16,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:16,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-24 15:59:16,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:16,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-24 15:59:16,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:16,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-09-24 15:59:16,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:16,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:16,930 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:16,931 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:16,931 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:16,931 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:16,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-24 15:59:16,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:16,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 15:59:16,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:16,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:16,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:16,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-24 15:59:16,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:16,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,066 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,067 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,067 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,067 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-24 15:59:17,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 15:59:17,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:17,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-24 15:59:17,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:17,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,200 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,200 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,201 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,201 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-24 15:59:17,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 15:59:17,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:17,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-24 15:59:17,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:17,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,321 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,321 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,322 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,322 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-24 15:59:17,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 15:59:17,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:17,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 15:59:17,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:17,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:17,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,438 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,438 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,439 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,439 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:17,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 15:59:17,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:17,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 15:59:17,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:17,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,561 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,561 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,561 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,561 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-24 15:59:17,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 15:59:17,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:17,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-24 15:59:17,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:17,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,646 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,647 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,647 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,647 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-24 15:59:17,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 15:59:17,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:17,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:17,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:17,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:17,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,712 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,712 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,712 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,713 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-24 15:59:17,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 15:59:17,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:17,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 15:59:17,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:17,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,768 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,769 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,769 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,770 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:17,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 15:59:17,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:17,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:17,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:17,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,826 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,827 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,827 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,827 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:59:17,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:59:17,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:17,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 15:59:17,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:17,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,879 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,880 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,880 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,880 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 15:59:17,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:59:17,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:17,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:17,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:17,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,917 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,918 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,918 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,918 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 15:59:17,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:17,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:17,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 15:59:17,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:17,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,957 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,957 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,957 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,958 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 15:59:17,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:17,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:17,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:17,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:17,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,992 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,993 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,993 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,993 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:17,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:59:17,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:17,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:59:17,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:18,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 649 proven. 118 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2020-09-24 15:59:18,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1303299146] [2020-09-24 15:59:18,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:18,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-09-24 15:59:18,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031288728] [2020-09-24 15:59:18,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-24 15:59:18,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:18,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-24 15:59:18,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=300, Unknown=0, NotChecked=0, Total=462 [2020-09-24 15:59:18,112 INFO L87 Difference]: Start difference. First operand 98 states and 99 transitions. Second operand 22 states. [2020-09-24 15:59:19,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:19,408 INFO L93 Difference]: Finished difference Result 216 states and 472 transitions. [2020-09-24 15:59:19,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-24 15:59:19,409 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 144 [2020-09-24 15:59:19,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:19,410 INFO L225 Difference]: With dead ends: 216 [2020-09-24 15:59:19,410 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 15:59:19,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=487, Invalid=995, Unknown=0, NotChecked=0, Total=1482 [2020-09-24 15:59:19,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 15:59:19,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 15:59:19,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 15:59:19,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 15:59:19,413 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 144 [2020-09-24 15:59:19,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:19,414 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 15:59:19,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-24 15:59:19,414 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 15:59:19,414 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 15:59:19,414 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-24 15:59:19,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 15:59:19,626 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 15:59:19,626 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 15:59:19,626 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 15:59:19,626 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 15:59:19,626 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 15:59:19,626 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 15:59:19,627 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-09-24 15:59:19,627 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 9 15) the Hoare annotation is: true [2020-09-24 15:59:19,627 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 9 15) no Hoare annotation was computed. [2020-09-24 15:59:19,627 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-24 15:59:19,627 INFO L268 CegarLoopResult]: For program point L12(lines 12 14) no Hoare annotation was computed. [2020-09-24 15:59:19,627 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (= 15 main_~input~0) [2020-09-24 15:59:19,627 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-09-24 15:59:19,627 INFO L268 CegarLoopResult]: For program point L12-2(lines 9 15) no Hoare annotation was computed. [2020-09-24 15:59:19,628 INFO L268 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-09-24 15:59:19,628 INFO L268 CegarLoopResult]: For program point L11-3(line 11) no Hoare annotation was computed. [2020-09-24 15:59:19,628 INFO L268 CegarLoopResult]: For program point idFINAL(lines 4 7) no Hoare annotation was computed. [2020-09-24 15:59:19,628 INFO L268 CegarLoopResult]: For program point idEXIT(lines 4 7) no Hoare annotation was computed. [2020-09-24 15:59:19,628 INFO L271 CegarLoopResult]: At program point idENTRY(lines 4 7) the Hoare annotation is: true [2020-09-24 15:59:19,628 INFO L264 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: (= |id_#in~x| id_~x) [2020-09-24 15:59:19,628 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 15:59:19,628 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-24 15:59:19,629 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-24 15:59:19,629 INFO L268 CegarLoopResult]: For program point L6-2(line 6) no Hoare annotation was computed. [2020-09-24 15:59:19,629 INFO L268 CegarLoopResult]: For program point L6-3(line 6) no Hoare annotation was computed. [2020-09-24 15:59:19,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:59:19 BoogieIcfgContainer [2020-09-24 15:59:19,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:59:19,641 INFO L168 Benchmark]: Toolchain (without parser) took 22415.91 ms. Allocated memory was 139.5 MB in the beginning and 566.8 MB in the end (delta: 427.3 MB). Free memory was 102.7 MB in the beginning and 318.8 MB in the end (delta: -216.1 MB). Peak memory consumption was 211.2 MB. Max. memory is 7.1 GB. [2020-09-24 15:59:19,641 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 15:59:19,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.14 ms. Allocated memory is still 139.5 MB. Free memory was 102.0 MB in the beginning and 92.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-09-24 15:59:19,642 INFO L168 Benchmark]: Boogie Preprocessor took 30.80 ms. Allocated memory is still 139.5 MB. Free memory was 92.9 MB in the beginning and 91.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-24 15:59:19,643 INFO L168 Benchmark]: RCFGBuilder took 353.73 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 91.5 MB in the beginning and 169.4 MB in the end (delta: -77.9 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-09-24 15:59:19,644 INFO L168 Benchmark]: TraceAbstraction took 21726.72 ms. Allocated memory was 201.9 MB in the beginning and 566.8 MB in the end (delta: 364.9 MB). Free memory was 169.4 MB in the beginning and 318.8 MB in the end (delta: -149.4 MB). Peak memory consumption was 215.5 MB. Max. memory is 7.1 GB. [2020-09-24 15:59:19,647 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 296.14 ms. Allocated memory is still 139.5 MB. Free memory was 102.0 MB in the beginning and 92.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.80 ms. Allocated memory is still 139.5 MB. Free memory was 92.9 MB in the beginning and 91.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 353.73 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 91.5 MB in the beginning and 169.4 MB in the end (delta: -77.9 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21726.72 ms. Allocated memory was 201.9 MB in the beginning and 566.8 MB in the end (delta: 364.9 MB). Free memory was 169.4 MB in the beginning and 318.8 MB in the end (delta: -149.4 MB). Peak memory consumption was 215.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 21.4s, OverallIterations: 17, TraceHistogramMax: 17, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 409 SDtfs, 1131 SDslu, 3111 SDs, 0 SdLazy, 2874 SolverSat, 237 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 713 GetRequests, 339 SyntacticMatches, 1 SemanticMatches, 373 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1428 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 39 PreInvPairs, 39 NumberOfFragments, 11 HoareAnnotationTreeSize, 39 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 284 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 15.0s InterpolantComputationTime, 1360 NumberOfCodeBlocks, 1360 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1343 ConstructedInterpolants, 0 QuantifiedInterpolants, 381930 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 1 PerfectInterpolantSequences, 2581/5984 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...