/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/id_build.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:11:18,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:11:18,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:11:18,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:11:18,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:11:18,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:11:18,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:11:18,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:11:18,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:11:18,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:11:18,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:11:18,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:11:18,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:11:18,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:11:18,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:11:18,561 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:11:18,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:11:18,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:11:18,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:11:18,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:11:18,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:11:18,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:11:18,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:11:18,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:11:18,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:11:18,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:11:18,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:11:18,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:11:18,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:11:18,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:11:18,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:11:18,603 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:11:18,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:11:18,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:11:18,605 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:11:18,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:11:18,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:11:18,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:11:18,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:11:18,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:11:18,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:11:18,611 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 16:11:18,653 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:11:18,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:11:18,655 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:11:18,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:11:18,655 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:11:18,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:11:18,656 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:11:18,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:11:18,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:11:18,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:11:18,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:11:18,658 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:11:18,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:11:18,658 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:11:18,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:11:18,659 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:11:18,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:11:18,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:11:18,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:11:18,660 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:11:18,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:11:18,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:11:18,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:11:18,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:11:18,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:11:18,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:11:18,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:11:18,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:11:18,661 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:11:18,662 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 16:11:19,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:11:19,152 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:11:19,158 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:11:19,162 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:11:19,163 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:11:19,164 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build.i [2020-09-24 16:11:19,234 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/14e148e7f/78eeef3570754a0196f792da35456d47/FLAGc3382066d [2020-09-24 16:11:19,760 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:11:19,761 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/id_build.i [2020-09-24 16:11:19,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/14e148e7f/78eeef3570754a0196f792da35456d47/FLAGc3382066d [2020-09-24 16:11:20,107 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/14e148e7f/78eeef3570754a0196f792da35456d47 [2020-09-24 16:11:20,122 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:11:20,128 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:11:20,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:11:20,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:11:20,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:11:20,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:11:20" (1/1) ... [2020-09-24 16:11:20,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dfcebea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:11:20, skipping insertion in model container [2020-09-24 16:11:20,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:11:20" (1/1) ... [2020-09-24 16:11:20,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:11:20,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:11:20,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:11:20,402 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:11:20,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:11:20,434 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:11:20,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:11:20 WrapperNode [2020-09-24 16:11:20,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:11:20,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:11:20,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:11:20,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:11:20,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:11:20" (1/1) ... [2020-09-24 16:11:20,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:11:20" (1/1) ... [2020-09-24 16:11:20,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:11:20" (1/1) ... [2020-09-24 16:11:20,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:11:20" (1/1) ... [2020-09-24 16:11:20,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:11:20" (1/1) ... [2020-09-24 16:11:20,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:11:20" (1/1) ... [2020-09-24 16:11:20,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:11:20" (1/1) ... [2020-09-24 16:11:20,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:11:20,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:11:20,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:11:20,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:11:20,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:11:20" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:11:20,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:11:20,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:11:20,638 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 16:11:20,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 16:11:20,639 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:11:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:11:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 16:11:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 16:11:20,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 16:11:20,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:11:20,640 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:11:20,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:11:20,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:11:20,900 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:11:20,901 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-24 16:11:20,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:11:20 BoogieIcfgContainer [2020-09-24 16:11:20,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:11:20,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:11:20,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:11:20,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:11:20,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:11:20" (1/3) ... [2020-09-24 16:11:20,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22afe02d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:11:20, skipping insertion in model container [2020-09-24 16:11:20,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:11:20" (2/3) ... [2020-09-24 16:11:20,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22afe02d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:11:20, skipping insertion in model container [2020-09-24 16:11:20,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:11:20" (3/3) ... [2020-09-24 16:11:20,928 INFO L109 eAbstractionObserver]: Analyzing ICFG id_build.i [2020-09-24 16:11:20,946 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:11:20,959 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:11:20,983 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:11:21,013 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:11:21,013 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:11:21,013 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:11:21,013 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:11:21,013 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:11:21,013 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:11:21,014 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:11:21,014 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:11:21,036 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-09-24 16:11:21,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-24 16:11:21,044 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:11:21,045 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:11:21,046 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:11:21,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:11:21,053 INFO L82 PathProgramCache]: Analyzing trace with hash 2141903635, now seen corresponding path program 1 times [2020-09-24 16:11:21,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:11:21,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998683872] [2020-09-24 16:11:21,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:11:21,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:21,223 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:21,223 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:21,223 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:21,224 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:21,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 16:11:21,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:21,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 16:11:21,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:21,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:11:21,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 16:11:21,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:11:21,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:11:21,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:11:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:21,337 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:21,337 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:21,338 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:21,339 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:21,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:11:21,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:21,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:11:21,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:21,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:21,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:11:21,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998683872] [2020-09-24 16:11:21,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:11:21,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 16:11:21,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043115434] [2020-09-24 16:11:21,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 16:11:21,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:11:21,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 16:11:21,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:11:21,387 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 5 states. [2020-09-24 16:11:21,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:11:21,493 INFO L93 Difference]: Finished difference Result 60 states and 72 transitions. [2020-09-24 16:11:21,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 16:11:21,495 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-09-24 16:11:21,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:11:21,505 INFO L225 Difference]: With dead ends: 60 [2020-09-24 16:11:21,505 INFO L226 Difference]: Without dead ends: 33 [2020-09-24 16:11:21,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:11:21,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-24 16:11:21,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-24 16:11:21,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-24 16:11:21,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-09-24 16:11:21,557 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 19 [2020-09-24 16:11:21,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:11:21,558 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-09-24 16:11:21,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 16:11:21,559 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-09-24 16:11:21,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-24 16:11:21,560 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:11:21,560 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:11:21,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:11:21,561 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:11:21,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:11:21,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1520201371, now seen corresponding path program 1 times [2020-09-24 16:11:21,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:11:21,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585978360] [2020-09-24 16:11:21,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:11:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:21,589 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:21,589 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:21,590 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:21,590 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:21,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-24 16:11:21,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:21,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 16:11:21,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:21,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:11:21,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 16:11:21,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 16:11:21,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:21,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:11:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:21,654 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:21,654 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:21,655 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:21,655 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:21,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:11:21,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:21,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:21,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:21,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:21,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:21,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:21,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:11:21,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-24 16:11:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:21,666 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:21,667 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:21,667 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:21,667 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:21,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:21,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:21,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:11:21,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:21,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:21,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:21,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:21,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:21,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:11:21,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1585978360] [2020-09-24 16:11:21,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:11:21,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 16:11:21,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393816353] [2020-09-24 16:11:21,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 16:11:21,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:11:21,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 16:11:21,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:11:21,682 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 5 states. [2020-09-24 16:11:21,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:11:21,754 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2020-09-24 16:11:21,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 16:11:21,755 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-09-24 16:11:21,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:11:21,758 INFO L225 Difference]: With dead ends: 49 [2020-09-24 16:11:21,758 INFO L226 Difference]: Without dead ends: 47 [2020-09-24 16:11:21,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:11:21,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-09-24 16:11:21,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2020-09-24 16:11:21,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-24 16:11:21,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2020-09-24 16:11:21,777 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 24 [2020-09-24 16:11:21,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:11:21,777 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2020-09-24 16:11:21,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 16:11:21,777 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2020-09-24 16:11:21,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 16:11:21,780 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:11:21,780 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:11:21,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:11:21,781 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:11:21,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:11:21,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1589830701, now seen corresponding path program 1 times [2020-09-24 16:11:21,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:11:21,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087237733] [2020-09-24 16:11:21,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:11:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:21,804 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:21,805 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:21,805 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:21,805 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:21,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 16:11:21,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:21,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:11:21,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 16:11:21,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 16:11:21,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:21,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:11:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:21,828 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:21,828 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:21,829 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:21,829 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:21,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:11:21,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:21,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:11:21,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:21,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:21,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:21,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:21,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:21,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-24 16:11:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:21,836 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:21,836 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:21,836 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:21,837 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:21,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:21,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:21,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:21,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:21,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:21,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 16:11:21,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:21,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:21,844 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 16:11:21,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087237733] [2020-09-24 16:11:21,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:11:21,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:11:21,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109098470] [2020-09-24 16:11:21,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:11:21,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:11:21,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:11:21,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:11:21,847 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand 3 states. [2020-09-24 16:11:21,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:11:21,873 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2020-09-24 16:11:21,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:11:21,874 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-09-24 16:11:21,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:11:21,876 INFO L225 Difference]: With dead ends: 76 [2020-09-24 16:11:21,876 INFO L226 Difference]: Without dead ends: 55 [2020-09-24 16:11:21,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:11:21,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-24 16:11:21,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 47. [2020-09-24 16:11:21,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-24 16:11:21,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2020-09-24 16:11:21,890 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 30 [2020-09-24 16:11:21,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:11:21,890 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2020-09-24 16:11:21,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:11:21,891 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2020-09-24 16:11:21,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-24 16:11:21,892 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:11:21,896 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:11:21,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:11:21,897 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:11:21,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:11:21,897 INFO L82 PathProgramCache]: Analyzing trace with hash 156681780, now seen corresponding path program 1 times [2020-09-24 16:11:21,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:11:21,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132977897] [2020-09-24 16:11:21,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:11:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:21,963 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:21,964 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:21,965 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:21,967 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:21,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-24 16:11:21,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:21,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 16:11:21,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:21,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:11:21,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 16:11:21,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 16:11:21,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:22,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:11:22,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:22,045 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:22,045 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:22,045 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:22,046 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:22,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:11:22,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:22,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:22,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:22,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:22,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:22,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:22,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:11:22,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-24 16:11:22,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:22,056 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:22,056 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:22,056 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:22,057 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:22,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:22,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:22,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:11:22,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:22,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:22,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:22,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:22,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:22,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:11:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:22,069 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:22,069 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:22,070 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:22,070 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:22,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:22,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:22,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:11:22,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:22,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:22,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:22,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:22,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:11:22,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-24 16:11:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:22,079 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:22,079 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:22,080 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:22,080 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:22,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:22,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:22,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:22,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:22,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:22,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 16:11:22,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:22,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:11:22,089 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-24 16:11:22,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132977897] [2020-09-24 16:11:22,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:11:22,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-24 16:11:22,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227192970] [2020-09-24 16:11:22,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 16:11:22,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:11:22,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 16:11:22,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 16:11:22,108 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand 5 states. [2020-09-24 16:11:22,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:11:22,193 INFO L93 Difference]: Finished difference Result 89 states and 103 transitions. [2020-09-24 16:11:22,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 16:11:22,194 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-09-24 16:11:22,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:11:22,196 INFO L225 Difference]: With dead ends: 89 [2020-09-24 16:11:22,197 INFO L226 Difference]: Without dead ends: 67 [2020-09-24 16:11:22,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:11:22,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-24 16:11:22,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 59. [2020-09-24 16:11:22,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-24 16:11:22,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2020-09-24 16:11:22,217 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 44 [2020-09-24 16:11:22,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:11:22,217 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2020-09-24 16:11:22,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 16:11:22,218 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2020-09-24 16:11:22,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-24 16:11:22,220 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:11:22,220 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:11:22,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 16:11:22,221 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:11:22,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:11:22,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1839058219, now seen corresponding path program 2 times [2020-09-24 16:11:22,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:11:22,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679163560] [2020-09-24 16:11:22,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:11:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:22,280 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:22,280 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:22,281 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:22,281 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:22,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-24 16:11:22,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:22,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 16:11:22,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:22,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:11:22,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 16:11:22,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 16:11:22,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:11:22,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:11:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:22,391 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:22,391 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:22,392 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:22,392 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:22,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:11:22,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:22,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:22,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:22,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:22,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:22,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:22,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:11:22,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-24 16:11:22,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:22,408 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:22,408 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:22,408 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:22,408 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:22,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:22,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:22,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:22,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:22,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:22,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:22,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:22,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:22,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:11:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:22,417 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:22,417 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:22,417 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:22,417 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:22,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:22,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:22,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:11:22,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:22,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:22,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:22,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:22,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:22,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-24 16:11:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:22,426 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:22,426 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:22,426 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:22,427 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:22,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:22,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:22,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:11:22,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:22,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:22,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:22,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:22,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:22,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:11:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:22,435 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:22,435 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:22,435 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:22,436 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:22,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:22,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:22,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:11:22,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:22,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:22,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:22,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:22,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:22,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 16:11:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:22,442 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:22,443 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:22,443 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:22,443 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:22,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:22,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:22,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:22,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:22,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:22,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 16:11:22,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:22,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:22,452 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-24 16:11:22,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679163560] [2020-09-24 16:11:22,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:11:22,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 16:11:22,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140227679] [2020-09-24 16:11:22,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 16:11:22,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:11:22,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 16:11:22,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:11:22,455 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand 7 states. [2020-09-24 16:11:22,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:11:22,558 INFO L93 Difference]: Finished difference Result 107 states and 127 transitions. [2020-09-24 16:11:22,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 16:11:22,559 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2020-09-24 16:11:22,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:11:22,560 INFO L225 Difference]: With dead ends: 107 [2020-09-24 16:11:22,561 INFO L226 Difference]: Without dead ends: 79 [2020-09-24 16:11:22,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-09-24 16:11:22,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-24 16:11:22,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 71. [2020-09-24 16:11:22,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-24 16:11:22,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 82 transitions. [2020-09-24 16:11:22,577 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 82 transitions. Word has length 58 [2020-09-24 16:11:22,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:11:22,578 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 82 transitions. [2020-09-24 16:11:22,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 16:11:22,578 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 82 transitions. [2020-09-24 16:11:22,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-24 16:11:22,580 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:11:22,581 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:11:22,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 16:11:22,581 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:11:22,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:11:22,581 INFO L82 PathProgramCache]: Analyzing trace with hash -101962, now seen corresponding path program 3 times [2020-09-24 16:11:22,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:11:22,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294100013] [2020-09-24 16:11:22,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:11:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:22,619 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:22,619 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:22,619 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:22,620 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:22,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-24 16:11:22,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:22,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 16:11:22,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:22,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 16:11:22,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 16:11:22,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 16:11:22,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:22,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:11:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:22,702 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:22,702 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:22,702 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:22,702 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:22,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:11:22,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:22,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:22,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:22,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:22,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:22,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:22,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:22,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-24 16:11:22,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:22,709 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:22,709 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:22,709 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:22,709 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:22,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:22,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:22,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:22,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:22,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:22,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:22,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:22,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:22,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:11:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:22,717 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:22,717 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:22,717 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:22,718 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:22,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:22,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:22,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:22,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:22,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:22,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:22,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-24 16:11:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:22,727 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:22,727 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:22,727 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:22,727 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:22,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:22,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:22,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:22,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:22,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:22,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:22,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:22,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:22,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:11:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:22,735 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:22,736 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:22,736 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:22,736 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:22,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:22,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:22,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:22,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:22,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:22,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:22,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:22,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:22,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-24 16:11:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:22,744 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:22,745 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:22,745 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:22,745 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:22,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:22,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:22,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:22,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:22,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:22,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:22,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:22,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:22,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-24 16:11:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:22,753 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:22,754 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:22,754 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:22,754 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:22,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:22,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:22,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:22,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:22,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:22,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:22,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:22,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:22,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-24 16:11:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:22,761 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:22,761 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:22,761 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:22,762 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:22,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:22,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:22,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:22,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:22,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:22,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 16:11:22,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:22,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:22,771 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 26 proven. 21 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-09-24 16:11:22,772 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294100013] [2020-09-24 16:11:22,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:11:22,772 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 16:11:22,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213088894] [2020-09-24 16:11:22,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:11:22,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:11:22,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:11:22,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:11:22,774 INFO L87 Difference]: Start difference. First operand 71 states and 82 transitions. Second operand 9 states. [2020-09-24 16:11:22,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:11:22,957 INFO L93 Difference]: Finished difference Result 125 states and 151 transitions. [2020-09-24 16:11:22,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 16:11:22,958 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 72 [2020-09-24 16:11:22,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:11:22,960 INFO L225 Difference]: With dead ends: 125 [2020-09-24 16:11:22,960 INFO L226 Difference]: Without dead ends: 91 [2020-09-24 16:11:22,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2020-09-24 16:11:22,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-24 16:11:22,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 83. [2020-09-24 16:11:22,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-09-24 16:11:22,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 98 transitions. [2020-09-24 16:11:22,978 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 98 transitions. Word has length 72 [2020-09-24 16:11:22,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:11:22,979 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 98 transitions. [2020-09-24 16:11:22,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:11:22,979 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 98 transitions. [2020-09-24 16:11:22,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 16:11:22,982 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:11:22,982 INFO L422 BasicCegarLoop]: trace histogram [10, 9, 9, 5, 5, 5, 5, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:11:22,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 16:11:22,983 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:11:22,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:11:22,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1976659241, now seen corresponding path program 4 times [2020-09-24 16:11:22,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:11:22,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [960802291] [2020-09-24 16:11:22,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:11:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,036 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,036 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,037 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,037 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-09-24 16:11:23,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 16:11:23,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 16:11:23,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 16:11:23,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 16:11:23,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:11:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,147 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,147 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,147 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,148 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:11:23,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:23,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:23,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:23,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:23,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:11:23,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-24 16:11:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,156 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,156 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,157 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,175 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:23,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 16:11:23,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:23,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:23,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:23,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:11:23,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,183 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,183 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,183 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,184 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:23,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:23,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:23,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:23,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:23,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-24 16:11:23,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,191 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,192 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,192 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,192 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:23,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:11:23,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:23,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:23,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:23,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:11:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,200 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,200 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,200 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,200 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:23,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:23,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:23,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:23,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:23,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-24 16:11:23,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,208 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,209 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,209 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,209 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:23,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:23,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:23,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:23,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:23,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-24 16:11:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,217 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,217 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,217 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,218 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:23,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:23,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:23,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:23,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:23,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 16:11:23,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,225 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,226 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,226 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,226 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:23,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:23,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:23,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:23,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:23,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-24 16:11:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,234 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,235 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,235 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,235 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:23,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:23,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:23,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:23,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:23,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-24 16:11:23,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,242 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,242 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,242 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,242 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:23,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:23,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:23,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 16:11:23,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:23,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,256 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 33 proven. 40 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-09-24 16:11:23,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [960802291] [2020-09-24 16:11:23,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:11:23,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 16:11:23,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791674828] [2020-09-24 16:11:23,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 16:11:23,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:11:23,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 16:11:23,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-24 16:11:23,259 INFO L87 Difference]: Start difference. First operand 83 states and 98 transitions. Second operand 11 states. [2020-09-24 16:11:23,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:11:23,441 INFO L93 Difference]: Finished difference Result 143 states and 175 transitions. [2020-09-24 16:11:23,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 16:11:23,441 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 86 [2020-09-24 16:11:23,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:11:23,443 INFO L225 Difference]: With dead ends: 143 [2020-09-24 16:11:23,444 INFO L226 Difference]: Without dead ends: 103 [2020-09-24 16:11:23,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=123, Invalid=219, Unknown=0, NotChecked=0, Total=342 [2020-09-24 16:11:23,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-09-24 16:11:23,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 95. [2020-09-24 16:11:23,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-09-24 16:11:23,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 114 transitions. [2020-09-24 16:11:23,463 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 114 transitions. Word has length 86 [2020-09-24 16:11:23,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:11:23,466 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 114 transitions. [2020-09-24 16:11:23,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 16:11:23,466 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 114 transitions. [2020-09-24 16:11:23,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-09-24 16:11:23,471 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:11:23,472 INFO L422 BasicCegarLoop]: trace histogram [12, 11, 11, 6, 6, 6, 6, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:11:23,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 16:11:23,472 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:11:23,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:11:23,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1582933560, now seen corresponding path program 5 times [2020-09-24 16:11:23,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:11:23,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1895490620] [2020-09-24 16:11:23,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:11:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,568 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,568 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,568 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,568 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-24 16:11:23,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-24 16:11:23,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 16:11:23,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 16:11:23,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-24 16:11:23,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:11:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,750 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,750 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,750 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,751 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:11:23,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:23,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:23,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:23,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:23,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-24 16:11:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,757 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,757 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,758 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,758 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:23,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:23,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:23,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:23,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:23,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:11:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,764 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,765 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,765 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,765 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:23,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:23,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:23,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:23,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:23,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-24 16:11:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,772 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,772 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,772 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,773 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:23,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:23,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:23,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:23,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:23,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:11:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,779 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,779 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,780 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,780 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:23,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:23,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:23,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:23,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:23,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-24 16:11:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,787 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,787 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,787 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,787 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:23,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:23,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:23,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:23,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:23,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-24 16:11:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,794 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,794 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,794 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,795 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:23,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:23,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:23,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:23,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:23,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 16:11:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,801 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,801 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,802 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,802 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:23,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:23,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:23,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:23,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:23,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-24 16:11:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,808 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,809 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,809 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,809 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:23,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:23,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:23,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:23,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:23,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-24 16:11:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,816 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,816 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,817 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,817 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:23,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:23,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:23,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:23,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:23,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-24 16:11:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,824 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,824 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,824 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,824 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:23,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:23,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:23,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:23,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:23,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-24 16:11:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:23,830 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:23,830 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:23,830 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:23,830 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:23,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:23,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:23,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:23,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:23,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:23,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 16:11:23,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:23,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:23,844 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 40 proven. 65 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-09-24 16:11:23,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1895490620] [2020-09-24 16:11:23,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:11:23,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 16:11:23,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059673467] [2020-09-24 16:11:23,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 16:11:23,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:11:23,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 16:11:23,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-09-24 16:11:23,847 INFO L87 Difference]: Start difference. First operand 95 states and 114 transitions. Second operand 13 states. [2020-09-24 16:11:24,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:11:24,082 INFO L93 Difference]: Finished difference Result 161 states and 199 transitions. [2020-09-24 16:11:24,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 16:11:24,082 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 100 [2020-09-24 16:11:24,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:11:24,084 INFO L225 Difference]: With dead ends: 161 [2020-09-24 16:11:24,084 INFO L226 Difference]: Without dead ends: 115 [2020-09-24 16:11:24,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=178, Invalid=328, Unknown=0, NotChecked=0, Total=506 [2020-09-24 16:11:24,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-09-24 16:11:24,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 107. [2020-09-24 16:11:24,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-09-24 16:11:24,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 130 transitions. [2020-09-24 16:11:24,101 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 130 transitions. Word has length 100 [2020-09-24 16:11:24,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:11:24,102 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 130 transitions. [2020-09-24 16:11:24,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 16:11:24,102 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 130 transitions. [2020-09-24 16:11:24,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-09-24 16:11:24,104 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:11:24,104 INFO L422 BasicCegarLoop]: trace histogram [14, 13, 13, 7, 7, 7, 7, 6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:11:24,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 16:11:24,104 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:11:24,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:11:24,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1615510489, now seen corresponding path program 6 times [2020-09-24 16:11:24,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:11:24,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [843139713] [2020-09-24 16:11:24,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:11:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:24,156 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:24,156 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:24,156 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:24,156 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:24,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-09-24 16:11:24,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:24,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 16:11:24,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:24,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 16:11:24,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 16:11:24,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-24 16:11:24,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:24,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:11:24,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:24,319 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:24,319 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:24,320 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:24,320 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:24,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:11:24,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:24,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:24,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:24,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:24,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:24,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:24,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:24,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-24 16:11:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:24,325 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:24,326 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:24,326 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:24,326 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:24,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:24,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:24,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:24,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:24,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:24,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:24,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:24,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:24,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:11:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:24,333 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:24,333 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:24,333 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:24,333 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:24,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:24,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:24,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:24,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:24,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:24,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:24,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:24,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:24,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-24 16:11:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:24,339 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:24,340 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:24,340 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:24,340 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:24,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:24,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:24,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:24,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:24,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:24,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:24,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:24,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:24,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:11:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:24,347 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:24,347 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:24,347 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:24,347 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:24,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:24,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:24,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:24,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:24,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:24,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:24,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:24,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:24,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-24 16:11:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:24,354 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:24,355 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:24,355 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:24,355 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:24,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:24,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:24,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:24,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:24,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:24,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:24,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:24,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:24,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-24 16:11:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:24,362 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:24,362 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:24,363 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:24,363 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:24,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:24,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:24,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:24,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:24,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:24,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:24,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:24,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:24,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 16:11:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:24,370 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:24,370 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:24,371 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:24,371 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:24,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:24,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:24,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:24,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:24,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:24,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:24,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:24,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:24,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-24 16:11:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:24,378 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:24,379 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:24,379 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:24,379 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:24,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:24,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:24,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:24,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:24,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:24,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:24,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:24,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:24,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-24 16:11:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:24,388 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:24,388 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:24,388 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:24,388 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:24,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:24,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:24,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:24,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:24,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:24,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:24,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:24,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:24,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-24 16:11:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:24,397 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:24,397 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:24,397 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:24,397 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:24,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:24,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:24,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:24,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:24,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:24,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:24,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:24,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:24,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 16:11:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:24,405 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:24,405 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:24,405 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:24,406 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:24,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:24,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:24,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:24,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:24,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:24,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:24,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:24,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:24,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:11:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:24,413 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:24,413 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:24,413 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:24,414 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:24,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:24,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:24,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:24,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:24,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:24,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:24,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:24,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:24,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-24 16:11:24,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:24,420 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:24,420 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:24,420 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:24,421 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:24,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:24,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:24,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:24,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:24,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:24,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 16:11:24,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:24,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:24,434 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 47 proven. 96 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-09-24 16:11:24,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [843139713] [2020-09-24 16:11:24,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:11:24,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 16:11:24,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578320994] [2020-09-24 16:11:24,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 16:11:24,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:11:24,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 16:11:24,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-09-24 16:11:24,437 INFO L87 Difference]: Start difference. First operand 107 states and 130 transitions. Second operand 15 states. [2020-09-24 16:11:24,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:11:24,787 INFO L93 Difference]: Finished difference Result 179 states and 223 transitions. [2020-09-24 16:11:24,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 16:11:24,788 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 114 [2020-09-24 16:11:24,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:11:24,789 INFO L225 Difference]: With dead ends: 179 [2020-09-24 16:11:24,790 INFO L226 Difference]: Without dead ends: 127 [2020-09-24 16:11:24,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=243, Invalid=459, Unknown=0, NotChecked=0, Total=702 [2020-09-24 16:11:24,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-09-24 16:11:24,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 119. [2020-09-24 16:11:24,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-09-24 16:11:24,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 146 transitions. [2020-09-24 16:11:24,809 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 146 transitions. Word has length 114 [2020-09-24 16:11:24,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:11:24,809 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 146 transitions. [2020-09-24 16:11:24,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 16:11:24,810 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 146 transitions. [2020-09-24 16:11:24,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-09-24 16:11:24,812 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:11:24,812 INFO L422 BasicCegarLoop]: trace histogram [16, 15, 15, 8, 8, 8, 8, 7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:11:24,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 16:11:24,813 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:11:24,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:11:24,813 INFO L82 PathProgramCache]: Analyzing trace with hash 724624314, now seen corresponding path program 7 times [2020-09-24 16:11:24,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:11:24,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1082995026] [2020-09-24 16:11:24,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:11:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:24,887 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:24,887 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:24,887 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:24,888 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:24,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-24 16:11:24,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:24,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 16:11:24,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:24,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 16:11:24,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 16:11:24,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-24 16:11:24,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:11:25,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:11:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,078 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,078 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,079 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,079 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:11:25,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:25,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:25,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-24 16:11:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,083 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,084 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,084 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,084 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:11:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,090 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,090 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,090 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,091 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-24 16:11:25,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,096 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,096 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,096 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,097 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:11:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,102 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,103 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,103 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,103 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-24 16:11:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,109 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,109 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,109 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,110 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-24 16:11:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,115 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,115 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,116 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,116 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 16:11:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,122 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,123 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,123 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,123 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-24 16:11:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,130 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,130 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,130 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,130 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-24 16:11:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,137 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,137 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,137 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,137 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-24 16:11:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,143 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,143 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,143 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,143 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 16:11:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,149 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,149 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,150 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,150 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:11:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,156 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,156 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,157 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,157 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:11:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,163 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,164 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,164 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,164 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:11:25,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,171 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,172 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,172 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,172 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-09-24 16:11:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,178 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,178 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,178 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,179 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:25,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 16:11:25,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:25,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,193 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 54 proven. 133 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-09-24 16:11:25,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1082995026] [2020-09-24 16:11:25,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 16:11:25,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 16:11:25,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154828925] [2020-09-24 16:11:25,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 16:11:25,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:11:25,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 16:11:25,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2020-09-24 16:11:25,195 INFO L87 Difference]: Start difference. First operand 119 states and 146 transitions. Second operand 17 states. [2020-09-24 16:11:25,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:11:25,542 INFO L93 Difference]: Finished difference Result 189 states and 235 transitions. [2020-09-24 16:11:25,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 16:11:25,543 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 128 [2020-09-24 16:11:25,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:11:25,546 INFO L225 Difference]: With dead ends: 189 [2020-09-24 16:11:25,546 INFO L226 Difference]: Without dead ends: 131 [2020-09-24 16:11:25,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=612, Unknown=0, NotChecked=0, Total=930 [2020-09-24 16:11:25,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-09-24 16:11:25,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2020-09-24 16:11:25,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-09-24 16:11:25,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 162 transitions. [2020-09-24 16:11:25,568 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 162 transitions. Word has length 128 [2020-09-24 16:11:25,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:11:25,568 INFO L479 AbstractCegarLoop]: Abstraction has 131 states and 162 transitions. [2020-09-24 16:11:25,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 16:11:25,568 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 162 transitions. [2020-09-24 16:11:25,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 16:11:25,571 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:11:25,571 INFO L422 BasicCegarLoop]: trace histogram [18, 17, 17, 9, 9, 9, 9, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:11:25,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 16:11:25,571 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:11:25,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:11:25,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1386163675, now seen corresponding path program 8 times [2020-09-24 16:11:25,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:11:25,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526483415] [2020-09-24 16:11:25,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:11:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,605 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-24 16:11:25,606 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,606 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,606 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-09-24 16:11:25,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 16:11:25,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:11:25,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 16:11:25,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-09-24 16:11:25,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:11:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,703 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,703 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,703 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,703 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:11:25,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:11:25,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:11:25,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-24 16:11:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,708 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,709 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,709 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,709 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 16:11:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,716 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,716 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,716 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,717 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-24 16:11:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,723 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,724 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,724 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,724 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 16:11:25,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,730 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,731 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,731 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,731 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-24 16:11:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,738 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,738 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,738 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-24 16:11:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,745 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,745 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,746 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,746 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 16:11:25,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,753 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,753 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,753 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,754 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:11:25,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-24 16:11:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,761 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,761 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,761 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,761 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-24 16:11:25,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,769 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,769 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,769 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,769 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:11:25,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-24 16:11:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,777 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,777 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,778 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,778 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:11:25,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:11:25,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 16:11:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,786 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,786 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,786 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,786 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:11:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,794 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,795 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,795 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,795 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:11:25,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:11:25,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:11:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,803 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,804 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,804 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,804 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:11:25,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:11:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,813 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,813 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,813 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,813 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:11:25,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-09-24 16:11:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,823 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,823 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,823 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,823 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 16:11:25,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,831 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,831 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,831 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,831 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 16:11:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:11:25,839 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:11:25,839 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:11:25,839 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:11:25,840 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:11:25,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:11:25,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:11:25,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:11:25,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:11:25,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:11:25,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:11:25,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:11:25,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:11:25,858 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 747 trivial. 0 not checked. [2020-09-24 16:11:25,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1526483415] [2020-09-24 16:11:25,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:11:25,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 16:11:25,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597457765] [2020-09-24 16:11:25,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 16:11:25,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:11:25,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 16:11:25,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 16:11:25,861 INFO L87 Difference]: Start difference. First operand 131 states and 162 transitions. Second operand 6 states. [2020-09-24 16:11:25,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:11:25,922 INFO L93 Difference]: Finished difference Result 131 states and 162 transitions. [2020-09-24 16:11:25,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 16:11:25,923 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2020-09-24 16:11:25,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:11:25,925 INFO L225 Difference]: With dead ends: 131 [2020-09-24 16:11:25,925 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 16:11:25,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:11:25,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 16:11:25,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 16:11:25,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 16:11:25,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 16:11:25,927 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 142 [2020-09-24 16:11:25,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:11:25,928 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 16:11:25,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 16:11:25,928 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 16:11:25,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 16:11:25,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 16:11:25,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 16:11:26,179 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 45 [2020-09-24 16:11:26,380 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 45 [2020-09-24 16:11:26,596 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 11 [2020-09-24 16:11:26,764 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 11 [2020-09-24 16:11:26,774 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-24 16:11:26,775 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 16:11:26,775 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 16:11:26,775 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 16:11:26,775 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 16:11:26,775 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 16:11:26,775 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-24 16:11:26,775 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-24 16:11:26,776 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-24 16:11:26,776 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-24 16:11:26,776 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-24 16:11:26,776 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 23) no Hoare annotation was computed. [2020-09-24 16:11:26,776 INFO L268 CegarLoopResult]: For program point L19(lines 17 20) no Hoare annotation was computed. [2020-09-24 16:11:26,776 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-24 16:11:26,777 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 16:11:26,777 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-24 16:11:26,777 INFO L268 CegarLoopResult]: For program point L17-3(line 17) no Hoare annotation was computed. [2020-09-24 16:11:26,777 INFO L268 CegarLoopResult]: For program point L17-4(line 17) no Hoare annotation was computed. [2020-09-24 16:11:26,777 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 23) no Hoare annotation was computed. [2020-09-24 16:11:26,777 INFO L264 CegarLoopResult]: At program point L17-5(lines 17 20) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~nlen~0) (<= 0 main_~i~0)) [2020-09-24 16:11:26,777 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 23) the Hoare annotation is: true [2020-09-24 16:11:26,778 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~nlen~0) (<= main_~j~0 7) (<= 0 main_~i~0)) [2020-09-24 16:11:26,778 INFO L264 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~nlen~0) (<= main_~j~0 7) (<= 0 main_~i~0)) [2020-09-24 16:11:26,778 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 16:11:26,778 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-24 16:11:26,778 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-09-24 16:11:26,779 INFO L268 CegarLoopResult]: For program point L16-3(lines 16 21) no Hoare annotation was computed. [2020-09-24 16:11:26,779 INFO L268 CegarLoopResult]: For program point L14-2(line 14) no Hoare annotation was computed. [2020-09-24 16:11:26,779 INFO L268 CegarLoopResult]: For program point L16-4(line 16) no Hoare annotation was computed. [2020-09-24 16:11:26,779 INFO L268 CegarLoopResult]: For program point L14-3(line 14) no Hoare annotation was computed. [2020-09-24 16:11:26,779 INFO L268 CegarLoopResult]: For program point L16-5(line 16) no Hoare annotation was computed. [2020-09-24 16:11:26,780 INFO L264 CegarLoopResult]: At program point L16-6(lines 16 21) the Hoare annotation is: (<= 0 main_~i~0) [2020-09-24 16:11:26,780 INFO L268 CegarLoopResult]: For program point L16-7(lines 16 21) no Hoare annotation was computed. [2020-09-24 16:11:26,780 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-24 16:11:26,780 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-09-24 16:11:26,780 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-24 16:11:26,780 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-09-24 16:11:26,781 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-09-24 16:11:26,782 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-09-24 16:11:26,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 04:11:26 BoogieIcfgContainer [2020-09-24 16:11:26,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 16:11:26,841 INFO L168 Benchmark]: Toolchain (without parser) took 6716.50 ms. Allocated memory was 140.0 MB in the beginning and 286.3 MB in the end (delta: 146.3 MB). Free memory was 102.6 MB in the beginning and 109.6 MB in the end (delta: -6.9 MB). Peak memory consumption was 139.4 MB. Max. memory is 7.1 GB. [2020-09-24 16:11:26,848 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 16:11:26,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.17 ms. Allocated memory is still 140.0 MB. Free memory was 102.0 MB in the beginning and 92.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-09-24 16:11:26,852 INFO L168 Benchmark]: Boogie Preprocessor took 115.29 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 92.3 MB in the beginning and 182.9 MB in the end (delta: -90.6 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2020-09-24 16:11:26,853 INFO L168 Benchmark]: RCFGBuilder took 356.04 ms. Allocated memory is still 202.9 MB. Free memory was 182.9 MB in the beginning and 168.7 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2020-09-24 16:11:26,859 INFO L168 Benchmark]: TraceAbstraction took 5918.93 ms. Allocated memory was 202.9 MB in the beginning and 286.3 MB in the end (delta: 83.4 MB). Free memory was 168.0 MB in the beginning and 109.6 MB in the end (delta: 58.5 MB). Peak memory consumption was 141.8 MB. Max. memory is 7.1 GB. [2020-09-24 16:11:26,872 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 306.17 ms. Allocated memory is still 140.0 MB. Free memory was 102.0 MB in the beginning and 92.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.29 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 92.3 MB in the beginning and 182.9 MB in the end (delta: -90.6 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 356.04 ms. Allocated memory is still 202.9 MB. Free memory was 182.9 MB in the beginning and 168.7 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5918.93 ms. Allocated memory was 202.9 MB in the beginning and 286.3 MB in the end (delta: 83.4 MB). Free memory was 168.0 MB in the beginning and 109.6 MB in the end (delta: 58.5 MB). Peak memory consumption was 141.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: i + 1 <= nlen && 0 <= i - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 <= i - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.9s, OverallIterations: 11, TraceHistogramMax: 18, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 384 SDtfs, 121 SDslu, 1221 SDs, 0 SdLazy, 405 SolverSat, 121 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 343 GetRequests, 208 SyntacticMatches, 1 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 58 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 100 PreInvPairs, 142 NumberOfFragments, 41 HoareAnnotationTreeSize, 100 FomulaSimplifications, 14096 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 9 FomulaSimplificationsInter, 3280 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 817 NumberOfCodeBlocks, 817 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 806 ConstructedInterpolants, 0 QuantifiedInterpolants, 130326 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 2251/2615 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...