/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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:10:25,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:10:25,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:10:25,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:10:25,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:10:25,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:10:25,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:10:25,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:10:25,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:10:25,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:10:25,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:10:25,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:10:25,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:10:25,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:10:25,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:10:25,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:10:25,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:10:25,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:10:25,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:10:25,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:10:25,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:10:25,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:10:25,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:10:25,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:10:25,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:10:25,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:10:25,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:10:25,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:10:25,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:10:25,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:10:25,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:10:25,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:10:25,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:10:25,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:10:25,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:10:25,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:10:25,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:10:25,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:10:25,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:10:25,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:10:25,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:10:25,189 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 [2020-09-25 01:10:25,238 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:10:25,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:10:25,241 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:10:25,241 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:10:25,241 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:10:25,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:10:25,242 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:10:25,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:10:25,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:10:25,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:10:25,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:10:25,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:10:25,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:10:25,245 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:10:25,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:10:25,245 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:10:25,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:10:25,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:10:25,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:10:25,246 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:10:25,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:10:25,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:10:25,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:10:25,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:10:25,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:10:25,247 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:10:25,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:10:25,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:10:25,248 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:10:25,248 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;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;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;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;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;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;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;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;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;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 01:10:25,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:10:25,779 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:10:25,784 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:10:25,787 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:10:25,788 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:10:25,789 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-09-25 01:10:25,868 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/564694252/4a8f3d9d72064a26b2640bcba5dfca65/FLAG4aba091ad [2020-09-25 01:10:26,459 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:10:26,460 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-09-25 01:10:26,474 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/564694252/4a8f3d9d72064a26b2640bcba5dfca65/FLAG4aba091ad [2020-09-25 01:10:26,713 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/564694252/4a8f3d9d72064a26b2640bcba5dfca65 [2020-09-25 01:10:26,729 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:10:26,736 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:10:26,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:10:26,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:10:26,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:10:26,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:10:26" (1/1) ... [2020-09-25 01:10:26,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35a39462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:26, skipping insertion in model container [2020-09-25 01:10:26,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:10:26" (1/1) ... [2020-09-25 01:10:26,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:10:26,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:10:27,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:10:27,281 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:10:27,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:10:27,455 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:10:27,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:27 WrapperNode [2020-09-25 01:10:27,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:10:27,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:10:27,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:10:27,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:10:27,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:27" (1/1) ... [2020-09-25 01:10:27,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:27" (1/1) ... [2020-09-25 01:10:27,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:27" (1/1) ... [2020-09-25 01:10:27,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:27" (1/1) ... [2020-09-25 01:10:27,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:27" (1/1) ... [2020-09-25 01:10:27,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:27" (1/1) ... [2020-09-25 01:10:27,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:27" (1/1) ... [2020-09-25 01:10:27,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:10:27,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:10:27,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:10:27,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:10:27,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:27" (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 [2020-09-25 01:10:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:10:27,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:10:27,593 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 01:10:27,593 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:10:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:10:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 01:10:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 01:10:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 01:10:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:10:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:10:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:10:27,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:10:28,551 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:10:28,552 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 01:10:28,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:10:28 BoogieIcfgContainer [2020-09-25 01:10:28,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:10:28,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:10:28,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:10:28,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:10:28,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:10:26" (1/3) ... [2020-09-25 01:10:28,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5b6364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:10:28, skipping insertion in model container [2020-09-25 01:10:28,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:10:27" (2/3) ... [2020-09-25 01:10:28,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5b6364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:10:28, skipping insertion in model container [2020-09-25 01:10:28,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:10:28" (3/3) ... [2020-09-25 01:10:28,573 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+lhb-reducer.c [2020-09-25 01:10:28,584 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:10:28,598 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-09-25 01:10:28,620 INFO L251 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-09-25 01:10:28,662 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:10:28,662 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:10:28,662 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:10:28,662 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:10:28,662 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:10:28,662 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:10:28,663 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:10:28,663 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:10:28,697 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states. [2020-09-25 01:10:28,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-25 01:10:28,705 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:28,707 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:10:28,708 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:10:28,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:28,716 INFO L82 PathProgramCache]: Analyzing trace with hash 519309997, now seen corresponding path program 1 times [2020-09-25 01:10:28,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:28,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495004652] [2020-09-25 01:10:28,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:28,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:29,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:29,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:29,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 01:10:29,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:10:29,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 429 [2020-09-25 01:10:29,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:29,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:10:29,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 01:10:29,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:10:29,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 01:10:29,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:29,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:29,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:29,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:29,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:10:29,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:29,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:10:29,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:29,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:29,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:29,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:29,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:10:29,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:10:29,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495004652] [2020-09-25 01:10:29,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:10:29,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 01:10:29,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758898815] [2020-09-25 01:10:29,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 01:10:29,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:29,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 01:10:29,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 01:10:29,468 INFO L87 Difference]: Start difference. First operand 519 states. Second operand 6 states. [2020-09-25 01:10:31,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:31,069 INFO L93 Difference]: Finished difference Result 546 states and 624 transitions. [2020-09-25 01:10:31,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 01:10:31,078 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-09-25 01:10:31,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:31,098 INFO L225 Difference]: With dead ends: 546 [2020-09-25 01:10:31,099 INFO L226 Difference]: Without dead ends: 471 [2020-09-25 01:10:31,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:10:31,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-09-25 01:10:31,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 459. [2020-09-25 01:10:31,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-09-25 01:10:31,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 480 transitions. [2020-09-25 01:10:31,181 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 480 transitions. Word has length 25 [2020-09-25 01:10:31,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:31,182 INFO L479 AbstractCegarLoop]: Abstraction has 459 states and 480 transitions. [2020-09-25 01:10:31,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 01:10:31,182 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 480 transitions. [2020-09-25 01:10:31,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 01:10:31,183 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:31,184 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:10:31,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:10:31,185 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:10:31,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:31,185 INFO L82 PathProgramCache]: Analyzing trace with hash 775203426, now seen corresponding path program 1 times [2020-09-25 01:10:31,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:31,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168219446] [2020-09-25 01:10:31,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:31,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:31,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:31,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:31,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 01:10:31,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:10:31,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 345 [2020-09-25 01:10:31,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:31,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:10:31,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 01:10:31,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 01:10:31,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:10:31,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:31,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:31,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:31,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:10:31,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:31,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:10:31,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:31,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:31,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:31,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:31,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 01:10:31,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:10:31,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [168219446] [2020-09-25 01:10:31,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:10:31,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 01:10:31,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013886128] [2020-09-25 01:10:31,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 01:10:31,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:31,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 01:10:31,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 01:10:31,642 INFO L87 Difference]: Start difference. First operand 459 states and 480 transitions. Second operand 6 states. [2020-09-25 01:10:33,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:33,052 INFO L93 Difference]: Finished difference Result 469 states and 490 transitions. [2020-09-25 01:10:33,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 01:10:33,054 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-09-25 01:10:33,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:33,058 INFO L225 Difference]: With dead ends: 469 [2020-09-25 01:10:33,058 INFO L226 Difference]: Without dead ends: 447 [2020-09-25 01:10:33,061 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:10:33,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-09-25 01:10:33,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 447. [2020-09-25 01:10:33,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 447 states. [2020-09-25 01:10:33,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 459 transitions. [2020-09-25 01:10:33,091 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 459 transitions. Word has length 30 [2020-09-25 01:10:33,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:33,091 INFO L479 AbstractCegarLoop]: Abstraction has 447 states and 459 transitions. [2020-09-25 01:10:33,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 01:10:33,092 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 459 transitions. [2020-09-25 01:10:33,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-25 01:10:33,093 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:33,093 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:10:33,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:10:33,094 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:10:33,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:33,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1526563962, now seen corresponding path program 1 times [2020-09-25 01:10:33,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:33,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1778462691] [2020-09-25 01:10:33,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:33,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:33,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:33,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:33,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:33,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:34,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:34,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 01:10:34,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:10:34,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1823 [2020-09-25 01:10:34,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:34,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 01:10:34,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-09-25 01:10:34,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 01:10:34,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:10:35,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:35,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:35,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:35,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:35,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:10:35,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:35,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:10:35,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:35,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:35,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:35,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:35,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:10:35,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:10:35,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1778462691] [2020-09-25 01:10:35,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:10:35,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 01:10:35,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738346228] [2020-09-25 01:10:35,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 01:10:35,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:35,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 01:10:35,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:10:35,102 INFO L87 Difference]: Start difference. First operand 447 states and 459 transitions. Second operand 11 states. [2020-09-25 01:10:36,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:36,867 INFO L93 Difference]: Finished difference Result 514 states and 530 transitions. [2020-09-25 01:10:36,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 01:10:36,870 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 47 [2020-09-25 01:10:36,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:36,874 INFO L225 Difference]: With dead ends: 514 [2020-09-25 01:10:36,874 INFO L226 Difference]: Without dead ends: 512 [2020-09-25 01:10:36,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-09-25 01:10:36,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2020-09-25 01:10:36,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 445. [2020-09-25 01:10:36,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2020-09-25 01:10:36,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 457 transitions. [2020-09-25 01:10:36,888 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 457 transitions. Word has length 47 [2020-09-25 01:10:36,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:36,889 INFO L479 AbstractCegarLoop]: Abstraction has 445 states and 457 transitions. [2020-09-25 01:10:36,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 01:10:36,889 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 457 transitions. [2020-09-25 01:10:36,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 01:10:36,891 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:36,891 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:10:36,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:10:36,892 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:10:36,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:36,892 INFO L82 PathProgramCache]: Analyzing trace with hash -344421966, now seen corresponding path program 1 times [2020-09-25 01:10:36,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:36,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [912266367] [2020-09-25 01:10:36,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:36,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:36,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:36,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:37,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:37,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 01:10:37,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:10:37,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 810 [2020-09-25 01:10:37,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:37,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:10:37,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 01:10:37,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 01:10:37,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:10:37,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:37,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:37,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:37,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:10:37,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:37,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:10:37,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:37,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:37,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:37,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:37,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:10:37,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:10:37,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [912266367] [2020-09-25 01:10:37,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:10:37,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 01:10:37,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984349836] [2020-09-25 01:10:37,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 01:10:37,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:37,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 01:10:37,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 01:10:37,806 INFO L87 Difference]: Start difference. First operand 445 states and 457 transitions. Second operand 6 states. [2020-09-25 01:10:39,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:39,174 INFO L93 Difference]: Finished difference Result 445 states and 457 transitions. [2020-09-25 01:10:39,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 01:10:39,175 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-09-25 01:10:39,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:39,178 INFO L225 Difference]: With dead ends: 445 [2020-09-25 01:10:39,178 INFO L226 Difference]: Without dead ends: 433 [2020-09-25 01:10:39,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:10:39,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2020-09-25 01:10:39,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2020-09-25 01:10:39,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2020-09-25 01:10:39,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 445 transitions. [2020-09-25 01:10:39,190 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 445 transitions. Word has length 52 [2020-09-25 01:10:39,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:39,191 INFO L479 AbstractCegarLoop]: Abstraction has 433 states and 445 transitions. [2020-09-25 01:10:39,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 01:10:39,191 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 445 transitions. [2020-09-25 01:10:39,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 01:10:39,193 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:39,193 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:10:39,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:10:39,194 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:10:39,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:39,194 INFO L82 PathProgramCache]: Analyzing trace with hash 784264785, now seen corresponding path program 1 times [2020-09-25 01:10:39,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:39,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949019533] [2020-09-25 01:10:39,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:39,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:39,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:39,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:39,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:39,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 01:10:39,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:10:39,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 362 [2020-09-25 01:10:39,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:39,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 01:10:39,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-09-25 01:10:39,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 01:10:39,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:10:39,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:39,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:39,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:39,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:10:39,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:39,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:10:39,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:39,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:10:39,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:10:39,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949019533] [2020-09-25 01:10:39,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:10:39,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:10:39,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778943625] [2020-09-25 01:10:39,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:10:39,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:39,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:10:39,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:10:39,714 INFO L87 Difference]: Start difference. First operand 433 states and 445 transitions. Second operand 9 states. [2020-09-25 01:10:42,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:42,022 INFO L93 Difference]: Finished difference Result 644 states and 663 transitions. [2020-09-25 01:10:42,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 01:10:42,023 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2020-09-25 01:10:42,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:42,027 INFO L225 Difference]: With dead ends: 644 [2020-09-25 01:10:42,028 INFO L226 Difference]: Without dead ends: 642 [2020-09-25 01:10:42,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2020-09-25 01:10:42,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2020-09-25 01:10:42,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 431. [2020-09-25 01:10:42,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2020-09-25 01:10:42,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 443 transitions. [2020-09-25 01:10:42,045 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 443 transitions. Word has length 57 [2020-09-25 01:10:42,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:42,045 INFO L479 AbstractCegarLoop]: Abstraction has 431 states and 443 transitions. [2020-09-25 01:10:42,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:10:42,045 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 443 transitions. [2020-09-25 01:10:42,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 01:10:42,047 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:42,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:10:42,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:10:42,048 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:10:42,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:42,049 INFO L82 PathProgramCache]: Analyzing trace with hash 2053600793, now seen corresponding path program 1 times [2020-09-25 01:10:42,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:42,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [793312591] [2020-09-25 01:10:42,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:42,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:42,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:42,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:42,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 01:10:42,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:10:42,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 475 [2020-09-25 01:10:42,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:42,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 01:10:42,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-09-25 01:10:42,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 01:10:42,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:10:42,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:42,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:42,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:42,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:10:42,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:42,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:10:42,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:42,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:42,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:42,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:42,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:10:42,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:10:42,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [793312591] [2020-09-25 01:10:42,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:10:42,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:10:42,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062185148] [2020-09-25 01:10:42,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:10:42,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:42,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:10:42,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:10:42,816 INFO L87 Difference]: Start difference. First operand 431 states and 443 transitions. Second operand 9 states. [2020-09-25 01:10:44,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:44,735 INFO L93 Difference]: Finished difference Result 508 states and 523 transitions. [2020-09-25 01:10:44,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 01:10:44,736 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2020-09-25 01:10:44,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:44,740 INFO L225 Difference]: With dead ends: 508 [2020-09-25 01:10:44,740 INFO L226 Difference]: Without dead ends: 506 [2020-09-25 01:10:44,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-09-25 01:10:44,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2020-09-25 01:10:44,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 429. [2020-09-25 01:10:44,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-09-25 01:10:44,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 441 transitions. [2020-09-25 01:10:44,752 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 441 transitions. Word has length 57 [2020-09-25 01:10:44,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:44,753 INFO L479 AbstractCegarLoop]: Abstraction has 429 states and 441 transitions. [2020-09-25 01:10:44,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:10:44,753 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 441 transitions. [2020-09-25 01:10:44,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 01:10:44,754 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:44,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:10:44,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 01:10:44,755 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:10:44,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:44,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1921870681, now seen corresponding path program 1 times [2020-09-25 01:10:44,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:44,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1472918858] [2020-09-25 01:10:44,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:44,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:44,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:45,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:45,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 01:10:45,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:10:45,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-09-25 01:10:45,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:45,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 01:10:45,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-09-25 01:10:45,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 01:10:45,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:10:45,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:45,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:45,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:45,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:10:45,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:45,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:10:45,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:45,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:45,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:45,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:45,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:10:45,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:10:45,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1472918858] [2020-09-25 01:10:45,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:10:45,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:10:45,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154211846] [2020-09-25 01:10:45,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:10:45,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:45,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:10:45,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:10:45,250 INFO L87 Difference]: Start difference. First operand 429 states and 441 transitions. Second operand 9 states. [2020-09-25 01:10:47,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:47,317 INFO L93 Difference]: Finished difference Result 602 states and 621 transitions. [2020-09-25 01:10:47,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 01:10:47,317 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2020-09-25 01:10:47,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:47,320 INFO L225 Difference]: With dead ends: 602 [2020-09-25 01:10:47,320 INFO L226 Difference]: Without dead ends: 600 [2020-09-25 01:10:47,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2020-09-25 01:10:47,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2020-09-25 01:10:47,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 427. [2020-09-25 01:10:47,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-09-25 01:10:47,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 439 transitions. [2020-09-25 01:10:47,333 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 439 transitions. Word has length 57 [2020-09-25 01:10:47,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:47,333 INFO L479 AbstractCegarLoop]: Abstraction has 427 states and 439 transitions. [2020-09-25 01:10:47,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:10:47,333 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 439 transitions. [2020-09-25 01:10:47,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 01:10:47,335 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:47,335 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:10:47,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 01:10:47,335 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:10:47,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:47,336 INFO L82 PathProgramCache]: Analyzing trace with hash -382650347, now seen corresponding path program 1 times [2020-09-25 01:10:47,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:47,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139723426] [2020-09-25 01:10:47,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:47,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:47,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:48,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:48,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 01:10:48,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:10:48,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 963 [2020-09-25 01:10:48,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:48,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 01:10:48,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 01:10:48,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 01:10:48,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:10:48,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:48,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:48,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:48,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:10:48,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:48,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:10:48,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:48,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:48,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:48,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:48,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:10:48,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:10:48,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139723426] [2020-09-25 01:10:48,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:10:48,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 01:10:48,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820315154] [2020-09-25 01:10:48,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 01:10:48,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:48,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 01:10:48,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:10:48,498 INFO L87 Difference]: Start difference. First operand 427 states and 439 transitions. Second operand 10 states. [2020-09-25 01:10:51,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:51,139 INFO L93 Difference]: Finished difference Result 622 states and 641 transitions. [2020-09-25 01:10:51,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 01:10:51,140 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 62 [2020-09-25 01:10:51,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:51,144 INFO L225 Difference]: With dead ends: 622 [2020-09-25 01:10:51,144 INFO L226 Difference]: Without dead ends: 620 [2020-09-25 01:10:51,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2020-09-25 01:10:51,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2020-09-25 01:10:51,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 472. [2020-09-25 01:10:51,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2020-09-25 01:10:51,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 489 transitions. [2020-09-25 01:10:51,158 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 489 transitions. Word has length 62 [2020-09-25 01:10:51,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:51,159 INFO L479 AbstractCegarLoop]: Abstraction has 472 states and 489 transitions. [2020-09-25 01:10:51,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 01:10:51,159 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 489 transitions. [2020-09-25 01:10:51,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 01:10:51,160 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:51,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:10:51,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 01:10:51,160 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:10:51,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:51,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1546196018, now seen corresponding path program 1 times [2020-09-25 01:10:51,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:51,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [589324334] [2020-09-25 01:10:51,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:51,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:51,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:52,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:52,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 01:10:52,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:10:52,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-25 01:10:52,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:52,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 01:10:52,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 01:10:52,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 01:10:52,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:10:52,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:52,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:52,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:52,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:10:52,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:52,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:10:52,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:52,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:52,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:52,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:52,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:10:52,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:10:52,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [589324334] [2020-09-25 01:10:52,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:10:52,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 01:10:52,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221791084] [2020-09-25 01:10:52,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 01:10:52,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:52,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 01:10:52,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:10:52,393 INFO L87 Difference]: Start difference. First operand 472 states and 489 transitions. Second operand 10 states. [2020-09-25 01:10:54,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:54,549 INFO L93 Difference]: Finished difference Result 486 states and 501 transitions. [2020-09-25 01:10:54,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 01:10:54,550 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 62 [2020-09-25 01:10:54,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:54,554 INFO L225 Difference]: With dead ends: 486 [2020-09-25 01:10:54,554 INFO L226 Difference]: Without dead ends: 474 [2020-09-25 01:10:54,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2020-09-25 01:10:54,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2020-09-25 01:10:54,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 472. [2020-09-25 01:10:54,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2020-09-25 01:10:54,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 488 transitions. [2020-09-25 01:10:54,565 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 488 transitions. Word has length 62 [2020-09-25 01:10:54,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:54,566 INFO L479 AbstractCegarLoop]: Abstraction has 472 states and 488 transitions. [2020-09-25 01:10:54,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 01:10:54,566 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 488 transitions. [2020-09-25 01:10:54,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 01:10:54,567 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:54,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:10:54,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 01:10:54,567 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:10:54,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:54,568 INFO L82 PathProgramCache]: Analyzing trace with hash 781872345, now seen corresponding path program 1 times [2020-09-25 01:10:54,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:54,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622676553] [2020-09-25 01:10:54,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:54,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:54,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:55,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:55,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 01:10:55,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:10:55,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 982 [2020-09-25 01:10:55,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:55,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 01:10:55,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 01:10:55,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 01:10:55,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:10:55,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:10:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:55,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:55,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:10:55,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:10:55,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:10:55,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:10:55,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:10:55,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:10:55,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:10:55,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:10:55,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:10:55,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:10:55,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1622676553] [2020-09-25 01:10:55,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:10:55,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 01:10:55,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678383121] [2020-09-25 01:10:55,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 01:10:55,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:10:55,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 01:10:55,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:10:55,771 INFO L87 Difference]: Start difference. First operand 472 states and 488 transitions. Second operand 10 states. [2020-09-25 01:10:58,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:10:58,128 INFO L93 Difference]: Finished difference Result 582 states and 600 transitions. [2020-09-25 01:10:58,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 01:10:58,129 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 62 [2020-09-25 01:10:58,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:10:58,133 INFO L225 Difference]: With dead ends: 582 [2020-09-25 01:10:58,133 INFO L226 Difference]: Without dead ends: 580 [2020-09-25 01:10:58,134 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2020-09-25 01:10:58,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-09-25 01:10:58,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 472. [2020-09-25 01:10:58,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2020-09-25 01:10:58,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 487 transitions. [2020-09-25 01:10:58,146 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 487 transitions. Word has length 62 [2020-09-25 01:10:58,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:10:58,147 INFO L479 AbstractCegarLoop]: Abstraction has 472 states and 487 transitions. [2020-09-25 01:10:58,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 01:10:58,147 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 487 transitions. [2020-09-25 01:10:58,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-25 01:10:58,148 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:10:58,148 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:10:58,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 01:10:58,148 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:10:58,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:10:58,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1199808863, now seen corresponding path program 1 times [2020-09-25 01:10:58,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:10:58,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493739716] [2020-09-25 01:10:58,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:10:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:10:58,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:58,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:58,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:58,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:58,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:58,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:59,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:10:59,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:00,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:00,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:03,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:11:03,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-25 01:11:03,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 01:11:03,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 01:11:03,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:11:03,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 01:11:03,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-09-25 01:11:03,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 01:11:03,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:11:03,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:11:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:11:03,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:03,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:11:03,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:11:03,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:11:03,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:11:03,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:11:03,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:11:03,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:11:03,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:11:03,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:11:03,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:11:03,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493739716] [2020-09-25 01:11:03,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:11:03,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:11:03,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356217708] [2020-09-25 01:11:03,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:11:03,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:11:03,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:11:03,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:11:03,271 INFO L87 Difference]: Start difference. First operand 472 states and 487 transitions. Second operand 9 states. [2020-09-25 01:11:05,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:11:05,139 INFO L93 Difference]: Finished difference Result 556 states and 575 transitions. [2020-09-25 01:11:05,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 01:11:05,140 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-09-25 01:11:05,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:11:05,142 INFO L225 Difference]: With dead ends: 556 [2020-09-25 01:11:05,142 INFO L226 Difference]: Without dead ends: 554 [2020-09-25 01:11:05,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-09-25 01:11:05,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2020-09-25 01:11:05,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 470. [2020-09-25 01:11:05,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2020-09-25 01:11:05,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 485 transitions. [2020-09-25 01:11:05,158 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 485 transitions. Word has length 70 [2020-09-25 01:11:05,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:11:05,158 INFO L479 AbstractCegarLoop]: Abstraction has 470 states and 485 transitions. [2020-09-25 01:11:05,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:11:05,159 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 485 transitions. [2020-09-25 01:11:05,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-25 01:11:05,160 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:11:05,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:11:05,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 01:11:05,160 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:11:05,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:11:05,161 INFO L82 PathProgramCache]: Analyzing trace with hash 886846446, now seen corresponding path program 1 times [2020-09-25 01:11:05,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:11:05,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [371353950] [2020-09-25 01:11:05,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:11:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:11:05,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:05,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:05,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:05,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:08,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:11:08,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 01:11:08,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:11:08,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3684 [2020-09-25 01:11:08,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:11:08,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:11:08,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-25 01:11:08,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 01:11:08,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:11:08,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:11:08,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:11:08,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:08,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:11:08,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 01:11:08,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:11:08,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:11:08,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:11:08,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:11:08,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:11:08,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:11:08,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:11:08,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:11:08,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [371353950] [2020-09-25 01:11:08,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:11:08,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 01:11:08,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041661596] [2020-09-25 01:11:08,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 01:11:08,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:11:08,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 01:11:08,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 01:11:08,934 INFO L87 Difference]: Start difference. First operand 470 states and 485 transitions. Second operand 6 states. [2020-09-25 01:11:10,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:11:10,102 INFO L93 Difference]: Finished difference Result 470 states and 485 transitions. [2020-09-25 01:11:10,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 01:11:10,102 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 75 [2020-09-25 01:11:10,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:11:10,105 INFO L225 Difference]: With dead ends: 470 [2020-09-25 01:11:10,105 INFO L226 Difference]: Without dead ends: 399 [2020-09-25 01:11:10,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:11:10,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-09-25 01:11:10,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2020-09-25 01:11:10,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2020-09-25 01:11:10,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 410 transitions. [2020-09-25 01:11:10,115 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 410 transitions. Word has length 75 [2020-09-25 01:11:10,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:11:10,116 INFO L479 AbstractCegarLoop]: Abstraction has 399 states and 410 transitions. [2020-09-25 01:11:10,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 01:11:10,116 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 410 transitions. [2020-09-25 01:11:10,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 01:11:10,117 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:11:10,117 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:11:10,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 01:11:10,118 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:11:10,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:11:10,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1128385369, now seen corresponding path program 1 times [2020-09-25 01:11:10,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:11:10,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [477255752] [2020-09-25 01:11:10,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:11:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:11:10,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:10,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:10,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking...