/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/Ackermann04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:58:32,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:58:32,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:58:32,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:58:32,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:58:32,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:58:32,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:58:32,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:58:32,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:58:32,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:58:32,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:58:32,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:58:32,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:58:32,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:58:32,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:58:32,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:58:32,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:58:32,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:58:32,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:58:32,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:58:32,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:58:32,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:58:32,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:58:32,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:58:32,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:58:32,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:58:32,348 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:58:32,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:58:32,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:58:32,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:58:32,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:58:32,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:58:32,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:58:32,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:58:32,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:58:32,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:58:32,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:58:32,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:58:32,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:58:32,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:58:32,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:58:32,360 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 09:58:32,396 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:58:32,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:58:32,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:58:32,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:58:32,399 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:58:32,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:58:32,399 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:58:32,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:58:32,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:58:32,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:58:32,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:58:32,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:58:32,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:58:32,402 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:58:32,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:58:32,403 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:58:32,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:58:32,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:58:32,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:58:32,404 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:58:32,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:58:32,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:58:32,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:58:32,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:58:32,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:58:32,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:58:32,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:58:32,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:58:32,406 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:58:32,407 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:58:32,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:58:32,989 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:58:32,995 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:58:32,997 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:58:32,997 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:58:32,999 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Ackermann04.c [2020-09-25 09:58:33,097 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/187b772d3/8e7c97cf31f14ad397dcad7c5fb1bdeb/FLAG9947bcd1e [2020-09-25 09:58:33,651 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:58:33,652 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Ackermann04.c [2020-09-25 09:58:33,660 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/187b772d3/8e7c97cf31f14ad397dcad7c5fb1bdeb/FLAG9947bcd1e [2020-09-25 09:58:33,984 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/187b772d3/8e7c97cf31f14ad397dcad7c5fb1bdeb [2020-09-25 09:58:34,000 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:58:34,006 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:58:34,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:58:34,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:58:34,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:58:34,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:58:33" (1/1) ... [2020-09-25 09:58:34,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55e164ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:34, skipping insertion in model container [2020-09-25 09:58:34,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:58:33" (1/1) ... [2020-09-25 09:58:34,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:58:34,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:58:34,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:58:34,292 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:58:34,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:58:34,328 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:58:34,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:34 WrapperNode [2020-09-25 09:58:34,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:58:34,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:58:34,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:58:34,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:58:34,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:34" (1/1) ... [2020-09-25 09:58:34,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:34" (1/1) ... [2020-09-25 09:58:34,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:34" (1/1) ... [2020-09-25 09:58:34,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:34" (1/1) ... [2020-09-25 09:58:34,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:34" (1/1) ... [2020-09-25 09:58:34,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:34" (1/1) ... [2020-09-25 09:58:34,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:34" (1/1) ... [2020-09-25 09:58:34,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:58:34,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:58:34,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:58:34,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:58:34,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:34" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:58:34,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:58:34,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:58:34,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ackermann [2020-09-25 09:58:34,538 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:58:34,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:58:34,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:58:34,538 INFO L130 BoogieDeclarations]: Found specification of procedure ackermann [2020-09-25 09:58:34,538 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:58:34,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:58:34,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:58:34,804 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:58:34,805 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 09:58:34,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:58:34 BoogieIcfgContainer [2020-09-25 09:58:34,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:58:34,814 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:58:34,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:58:34,818 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:58:34,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:58:33" (1/3) ... [2020-09-25 09:58:34,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1acb3058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:58:34, skipping insertion in model container [2020-09-25 09:58:34,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:58:34" (2/3) ... [2020-09-25 09:58:34,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1acb3058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:58:34, skipping insertion in model container [2020-09-25 09:58:34,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:58:34" (3/3) ... [2020-09-25 09:58:34,823 INFO L109 eAbstractionObserver]: Analyzing ICFG Ackermann04.c [2020-09-25 09:58:34,838 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:58:34,850 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:58:34,878 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:58:34,913 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:58:34,914 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:58:34,914 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:58:34,914 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:58:34,914 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:58:34,915 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:58:34,915 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:58:34,915 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:58:34,942 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-09-25 09:58:34,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 09:58:34,952 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:34,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:58:34,953 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:34,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:34,960 INFO L82 PathProgramCache]: Analyzing trace with hash -852610024, now seen corresponding path program 1 times [2020-09-25 09:58:34,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:34,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [430815273] [2020-09-25 09:58:34,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:35,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:35,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:35,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 09:58:35,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:35,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-09-25 09:58:35,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:35,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:35,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:58:35,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 09:58:35,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 09:58:35,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 09:58:35,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:35,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:35,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:35,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:35,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:35,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:35,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:58:35,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:35,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:35,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:35,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:35,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:35,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:35,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 09:58:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:35,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:35,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:35,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:58:35,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:35,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 09:58:35,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:35,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:35,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:58:35,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:35,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:58:35,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:35,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:58:35,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [430815273] [2020-09-25 09:58:35,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:58:35,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:58:35,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054727366] [2020-09-25 09:58:35,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:58:35,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:35,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:58:35,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:58:35,622 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 5 states. [2020-09-25 09:58:35,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:35,799 INFO L93 Difference]: Finished difference Result 88 states and 110 transitions. [2020-09-25 09:58:35,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 09:58:35,803 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-09-25 09:58:35,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:35,818 INFO L225 Difference]: With dead ends: 88 [2020-09-25 09:58:35,819 INFO L226 Difference]: Without dead ends: 45 [2020-09-25 09:58:35,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:58:35,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-25 09:58:35,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-25 09:58:35,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-25 09:58:35,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2020-09-25 09:58:35,886 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 24 [2020-09-25 09:58:35,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:35,886 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2020-09-25 09:58:35,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:58:35,887 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2020-09-25 09:58:35,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 09:58:35,892 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:35,892 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, 1, 1, 1, 1] [2020-09-25 09:58:35,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:58:35,893 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:35,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:35,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1574290279, now seen corresponding path program 1 times [2020-09-25 09:58:35,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:35,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2043350584] [2020-09-25 09:58:35,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:35,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:35,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:35,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:36,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:36,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 09:58:36,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:58:36,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 509 [2020-09-25 09:58:36,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:36,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:36,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:58:36,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 09:58:36,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 09:58:36,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 09:58:36,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:36,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:36,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:36,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:36,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:36,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:58:36,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:36,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:36,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:36,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:36,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:36,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 09:58:36,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 09:58:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:36,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:36,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:36,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 09:58:36,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:36,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 09:58:36,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:36,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:36,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:58:36,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:36,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:58:36,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:36,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:36,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:36,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:36,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:58:36,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:36,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 09:58:36,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:36,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:36,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:58:36,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:36,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:58:36,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:36,678 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 09:58:36,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2043350584] [2020-09-25 09:58:36,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:58:36,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 09:58:36,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161316821] [2020-09-25 09:58:36,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:58:36,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:36,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:58:36,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:58:36,695 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand 5 states. [2020-09-25 09:58:36,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:36,829 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2020-09-25 09:58:36,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 09:58:36,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-09-25 09:58:36,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:36,834 INFO L225 Difference]: With dead ends: 83 [2020-09-25 09:58:36,834 INFO L226 Difference]: Without dead ends: 47 [2020-09-25 09:58:36,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:58:36,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-09-25 09:58:36,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-09-25 09:58:36,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-25 09:58:36,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 56 transitions. [2020-09-25 09:58:36,851 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 56 transitions. Word has length 34 [2020-09-25 09:58:36,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:36,852 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 56 transitions. [2020-09-25 09:58:36,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:58:36,852 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2020-09-25 09:58:36,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 09:58:36,857 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:36,858 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:58:36,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:58:36,859 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:36,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:36,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1685750542, now seen corresponding path program 1 times [2020-09-25 09:58:36,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:36,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771100972] [2020-09-25 09:58:36,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:36,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:36,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:36,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:40,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:40,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 09:58:40,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:58:40,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3224 [2020-09-25 09:58:40,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:40,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:40,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:58:40,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 09:58:40,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 09:58:40,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:40,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:40,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:40,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:40,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:40,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:40,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:58:40,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:40,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:40,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:40,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:40,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:40,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:40,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 09:58:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:40,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:40,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:40,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 09:58:40,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:40,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 09:58:40,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:40,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:40,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:58:40,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:40,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 09:58:40,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:40,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:40,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:40,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:40,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 09:58:40,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:40,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 09:58:40,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:40,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:40,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:58:40,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:40,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:58:40,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:40,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:40,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:40,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:40,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:58:40,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:40,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:58:40,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:40,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:40,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:58:40,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:40,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:58:40,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:40,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 09:58:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:40,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:40,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:40,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:58:40,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:40,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:58:40,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:40,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:40,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:58:40,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:40,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:58:40,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:40,457 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 09:58:40,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771100972] [2020-09-25 09:58:40,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:58:40,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 09:58:40,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002628423] [2020-09-25 09:58:40,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:58:40,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:40,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:58:40,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:58:40,461 INFO L87 Difference]: Start difference. First operand 47 states and 56 transitions. Second operand 7 states. [2020-09-25 09:58:40,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:40,656 INFO L93 Difference]: Finished difference Result 97 states and 129 transitions. [2020-09-25 09:58:40,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 09:58:40,657 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-09-25 09:58:40,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:40,662 INFO L225 Difference]: With dead ends: 97 [2020-09-25 09:58:40,662 INFO L226 Difference]: Without dead ends: 91 [2020-09-25 09:58:40,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:58:40,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-25 09:58:40,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2020-09-25 09:58:40,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-09-25 09:58:40,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 123 transitions. [2020-09-25 09:58:40,684 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 123 transitions. Word has length 53 [2020-09-25 09:58:40,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:40,684 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 123 transitions. [2020-09-25 09:58:40,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:58:40,685 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 123 transitions. [2020-09-25 09:58:40,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 09:58:40,689 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:40,690 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:58:40,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:58:40,690 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:40,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:40,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1817818703, now seen corresponding path program 2 times [2020-09-25 09:58:40,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:40,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [138631059] [2020-09-25 09:58:40,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:40,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:40,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:40,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:43,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:43,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 09:58:43,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:58:43,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2999 [2020-09-25 09:58:43,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:43,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:43,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:58:43,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 09:58:43,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 09:58:43,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:43,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:43,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:43,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:43,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:43,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:43,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:58:43,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:43,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:43,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:43,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:43,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:43,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:58:43,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 09:58:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:43,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:43,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:43,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:46,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 09:58:46,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:58:46,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2297 [2020-09-25 09:58:46,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:46,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:46,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:58:46,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:46,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 09:58:46,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:46,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:46,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:46,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 09:58:46,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:46,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 09:58:46,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:46,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:46,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:58:46,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:46,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 09:58:46,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:46,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:46,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:46,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 09:58:46,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:46,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:58:46,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:46,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:46,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:46,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:46,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:46,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:46,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:46,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:46,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:58:46,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:46,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:58:46,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:46,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:46,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:46,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:46,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:46,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:46,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 09:58:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:46,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:46,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:58:46,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:46,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:58:46,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:46,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:46,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:46,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:46,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:46,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:46,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-25 09:58:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:46,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:46,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:58:46,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:46,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 09:58:46,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:46,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:46,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:58:46,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:46,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:58:46,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:46,216 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 32 proven. 13 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-09-25 09:58:46,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [138631059] [2020-09-25 09:58:46,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:58:46,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 09:58:46,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540620783] [2020-09-25 09:58:46,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:58:46,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:46,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:58:46,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:58:46,219 INFO L87 Difference]: Start difference. First operand 91 states and 123 transitions. Second operand 6 states. [2020-09-25 09:58:46,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:46,337 INFO L93 Difference]: Finished difference Result 126 states and 201 transitions. [2020-09-25 09:58:46,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 09:58:46,337 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2020-09-25 09:58:46,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:46,342 INFO L225 Difference]: With dead ends: 126 [2020-09-25 09:58:46,342 INFO L226 Difference]: Without dead ends: 120 [2020-09-25 09:58:46,343 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:58:46,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-09-25 09:58:46,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-09-25 09:58:46,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-09-25 09:58:46,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 195 transitions. [2020-09-25 09:58:46,367 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 195 transitions. Word has length 72 [2020-09-25 09:58:46,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:46,368 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 195 transitions. [2020-09-25 09:58:46,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:58:46,368 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 195 transitions. [2020-09-25 09:58:46,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-25 09:58:46,374 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:46,374 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:58:46,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:58:46,375 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:46,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:46,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1778048969, now seen corresponding path program 3 times [2020-09-25 09:58:46,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:46,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1363447165] [2020-09-25 09:58:46,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:46,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:46,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:51,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:51,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-09-25 09:58:51,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:58:51,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 09:58:51,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:51,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:51,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 09:58:51,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-25 09:58:51,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 09:58:51,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:51,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:58:51,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:51,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:51,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:51,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:58:51,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:51,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:58:51,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:51,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:51,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:51,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:51,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:51,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:51,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 09:58:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:51,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:51,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:56,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:56,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 09:58:56,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:58:56,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 09:58:56,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:56,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:56,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 09:58:56,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 09:58:56,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 09:58:56,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:58:56,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:56,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:56,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:56,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-25 09:58:56,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:56,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 360 [2020-09-25 09:58:56,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:56,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:56,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 09:58:56,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 09:58:56,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 09:58:56,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:58:56,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:56,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:57,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 09:58:57,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:57,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-09-25 09:58:57,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:57,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:57,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 09:58:57,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:57,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 09:58:57,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:58:57,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:57,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:57,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:57,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 09:58:57,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:57,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 09:58:57,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:57,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:57,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 09:58:57,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:57,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 09:58:57,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:58:57,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:57,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:57,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 09:58:57,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:57,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 09:58:57,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:57,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:57,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 09:58:57,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:57,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 09:58:57,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:57,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:57,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:57,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:58:57,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:57,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:58:57,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:57,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:57,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:58:57,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:57,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:58:57,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:57,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 09:58:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:57,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:57,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:58:57,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:57,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 09:58:57,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:57,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:57,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:58:57,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:57,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:58:57,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 09:58:57,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 09:58:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:57,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:57,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 09:58:57,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:57,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 09:58:57,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:57,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:57,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:58:57,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 09:58:57,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 09:58:57,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:57,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:57,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:57,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:57,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:58:57,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:57,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 09:58:57,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:57,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:57,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:58:57,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:57,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:58:57,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:57,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-25 09:58:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:57,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:57,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 09:58:57,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:57,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:58:57,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:57,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:57,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:57,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 09:58:57,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:57,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:57,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:58:57,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:57,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:57,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:58:57,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:58:57,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:58:57,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:58:57,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:58:57,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:58:57,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:58:57,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:58:57,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:58:57,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:58:57,757 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 70 proven. 99 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2020-09-25 09:58:57,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1363447165] [2020-09-25 09:58:57,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:58:57,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 09:58:57,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562696758] [2020-09-25 09:58:57,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 09:58:57,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:58:57,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 09:58:57,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-09-25 09:58:57,764 INFO L87 Difference]: Start difference. First operand 120 states and 195 transitions. Second operand 13 states. [2020-09-25 09:58:58,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:58:58,372 INFO L93 Difference]: Finished difference Result 390 states and 949 transitions. [2020-09-25 09:58:58,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 09:58:58,373 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 121 [2020-09-25 09:58:58,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:58:58,380 INFO L225 Difference]: With dead ends: 390 [2020-09-25 09:58:58,380 INFO L226 Difference]: Without dead ends: 283 [2020-09-25 09:58:58,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=179, Invalid=691, Unknown=0, NotChecked=0, Total=870 [2020-09-25 09:58:58,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-09-25 09:58:58,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 215. [2020-09-25 09:58:58,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-09-25 09:58:58,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 489 transitions. [2020-09-25 09:58:58,432 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 489 transitions. Word has length 121 [2020-09-25 09:58:58,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:58:58,433 INFO L479 AbstractCegarLoop]: Abstraction has 215 states and 489 transitions. [2020-09-25 09:58:58,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 09:58:58,433 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 489 transitions. [2020-09-25 09:58:58,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-25 09:58:58,442 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:58:58,442 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 12, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:58:58,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 09:58:58,443 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:58:58,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:58:58,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1635358268, now seen corresponding path program 4 times [2020-09-25 09:58:58,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:58:58,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1991972577] [2020-09-25 09:58:58,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:58:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:58:58,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:58,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:58,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:58:58,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:03,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:03,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-25 09:59:03,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:59:03,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 09:59:03,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:03,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:03,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 09:59:03,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 09:59:03,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 09:59:03,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:03,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:03,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:03,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:03,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:03,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:03,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:59:03,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:03,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:03,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:03,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:03,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:03,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:03,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 09:59:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:03,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:03,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:03,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:03,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:04,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:04,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:04,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:08,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:08,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-25 09:59:08,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 09:59:08,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 09:59:08,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:08,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:08,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:59:08,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 09:59:08,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 09:59:08,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:08,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:08,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:08,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:08,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:09,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:09,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:09,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:13,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:13,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-09-25 09:59:13,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 09:59:13,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 09:59:13,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:13,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:13,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:59:13,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:59:13,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 09:59:13,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:13,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:13,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:13,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:13,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:14,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:14,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 09:59:14,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:59:14,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 458 [2020-09-25 09:59:14,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:14,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:14,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:59:14,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:14,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 09:59:14,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:14,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:14,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:14,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:14,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:14,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 09:59:14,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:59:14,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 409 [2020-09-25 09:59:14,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:14,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:14,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 09:59:14,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:14,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 09:59:14,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:14,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:14,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:14,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:14,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 09:59:14,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:14,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 09:59:14,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:14,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:14,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:14,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:14,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 09:59:14,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:14,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:14,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:14,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:14,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:14,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:14,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:59:14,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:14,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:14,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:14,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:14,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:14,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:14,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 09:59:14,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:14,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:14,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:14,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:14,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:14,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 09:59:14,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:14,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:14,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:14,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:14,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:59:14,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:14,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 09:59:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:14,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:14,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:14,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:14,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:15,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:15,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:15,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:15,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:19,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:19,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 09:59:19,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 09:59:19,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 09:59:19,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:19,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:19,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:59:19,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:19,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 09:59:19,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:19,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:19,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:19,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:19,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:19,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:20,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:20,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 09:59:20,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:59:20,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 716 [2020-09-25 09:59:20,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:20,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:20,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 09:59:20,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:20,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 09:59:20,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:20,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:20,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:20,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:20,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:20,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:20,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:20,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 09:59:20,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:59:20,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 530 [2020-09-25 09:59:20,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:20,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:20,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:20,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:20,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 09:59:20,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:21,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:21,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:21,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 09:59:21,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:21,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 09:59:21,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:21,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:21,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:21,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:21,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 09:59:21,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:21,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:21,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:21,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:21,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:21,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:21,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:59:21,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:21,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:21,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:21,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:21,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:21,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:21,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 09:59:21,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:21,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:21,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:21,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:21,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:59:21,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:21,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:21,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:21,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:21,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:21,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:21,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 09:59:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:21,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:21,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:21,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:21,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:59:21,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:21,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:21,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:21,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:21,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:21,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:21,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 09:59:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:21,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:21,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:22,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:23,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 09:59:23,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:59:23,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1819 [2020-09-25 09:59:23,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:23,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:23,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:59:23,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 09:59:23,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 09:59:23,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:23,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:23,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:23,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 09:59:23,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:59:23,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 769 [2020-09-25 09:59:23,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:23,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:23,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 09:59:23,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 09:59:23,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 09:59:23,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:23,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:23,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:23,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:23,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:23,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 09:59:23,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:23,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:23,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:23,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:23,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:59:23,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:23,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 09:59:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:23,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:23,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:23,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 09:59:23,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:23,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 09:59:23,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:23,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:23,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:23,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:23,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:59:23,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:23,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 09:59:24,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:24,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:24,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:24,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:24,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:24,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:59:24,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:24,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:24,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:24,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:24,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:24,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:24,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 346 proven. 358 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2020-09-25 09:59:24,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1991972577] [2020-09-25 09:59:24,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:59:24,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 09:59:24,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644025814] [2020-09-25 09:59:24,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 09:59:24,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:24,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 09:59:24,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2020-09-25 09:59:24,068 INFO L87 Difference]: Start difference. First operand 215 states and 489 transitions. Second operand 17 states.