/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=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_7-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:40:25,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:40:25,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:40:25,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:40:25,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:40:25,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:40:25,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:40:25,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:40:25,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:40:25,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:40:25,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:40:25,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:40:25,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:40:25,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:40:25,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:40:25,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:40:25,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:40:25,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:40:25,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:40:25,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:40:25,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:40:25,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:40:25,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:40:25,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:40:25,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:40:25,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:40:25,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:40:25,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:40:25,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:40:26,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:40:26,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:40:26,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:40:26,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:40:26,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:40:26,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:40:26,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:40:26,005 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:40:26,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:40:26,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:40:26,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:40:26,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:40:26,009 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 22:40:26,060 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:40:26,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:40:26,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:40:26,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:40:26,063 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:40:26,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:40:26,064 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:40:26,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:40:26,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:40:26,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:40:26,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:40:26,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:40:26,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:40:26,067 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:40:26,067 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:40:26,067 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:40:26,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:40:26,068 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:40:26,068 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:40:26,068 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:40:26,068 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:40:26,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:40:26,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:40:26,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:40:26,069 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:40:26,069 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:40:26,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:40:26,070 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:40:26,070 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:40:26,070 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:40:26,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:40:26,521 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:40:26,525 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:40:26,527 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:40:26,528 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:40:26,529 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_7-1.c [2020-09-24 22:40:26,617 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ecbed8ad9/346b966d45be42798f97e04963aeb29a/FLAG30a5d8d77 [2020-09-24 22:40:27,142 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:40:27,143 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_7-1.c [2020-09-24 22:40:27,152 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ecbed8ad9/346b966d45be42798f97e04963aeb29a/FLAG30a5d8d77 [2020-09-24 22:40:27,490 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ecbed8ad9/346b966d45be42798f97e04963aeb29a [2020-09-24 22:40:27,503 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:40:27,509 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:40:27,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:40:27,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:40:27,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:40:27,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:40:27" (1/1) ... [2020-09-24 22:40:27,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c2dfc77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:40:27, skipping insertion in model container [2020-09-24 22:40:27,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:40:27" (1/1) ... [2020-09-24 22:40:27,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:40:27,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:40:27,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:40:27,783 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:40:27,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:40:27,813 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:40:27,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:40:27 WrapperNode [2020-09-24 22:40:27,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:40:27,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:40:27,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:40:27,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:40:27,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:40:27" (1/1) ... [2020-09-24 22:40:27,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:40:27" (1/1) ... [2020-09-24 22:40:27,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:40:27" (1/1) ... [2020-09-24 22:40:27,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:40:27" (1/1) ... [2020-09-24 22:40:27,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:40:27" (1/1) ... [2020-09-24 22:40:27,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:40:27" (1/1) ... [2020-09-24 22:40:27,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:40:27" (1/1) ... [2020-09-24 22:40:27,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:40:27,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:40:27,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:40:27,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:40:27,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:40:27" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:40:27,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:40:27,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:40:27,995 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-24 22:40:27,995 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:40:27,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:40:27,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:40:27,995 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-24 22:40:27,995 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:40:27,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:40:27,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:40:28,197 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:40:28,197 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 22:40:28,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:40:28 BoogieIcfgContainer [2020-09-24 22:40:28,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:40:28,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:40:28,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:40:28,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:40:28,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:40:27" (1/3) ... [2020-09-24 22:40:28,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6195d3fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:40:28, skipping insertion in model container [2020-09-24 22:40:28,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:40:27" (2/3) ... [2020-09-24 22:40:28,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6195d3fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:40:28, skipping insertion in model container [2020-09-24 22:40:28,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:40:28" (3/3) ... [2020-09-24 22:40:28,212 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_7-1.c [2020-09-24 22:40:28,224 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:40:28,234 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:40:28,257 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:40:28,286 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:40:28,287 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:40:28,287 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:40:28,287 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:40:28,287 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:40:28,287 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:40:28,288 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:40:28,288 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:40:28,308 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-24 22:40:28,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 22:40:28,316 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:40:28,317 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:40:28,317 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:40:28,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:40:28,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-24 22:40:28,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:40:28,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805425204] [2020-09-24 22:40:28,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:40:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:28,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:28,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:28,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 22:40:28,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:28,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 22:40:28,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:28,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:40:28,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:40:28,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:40:28,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:40:28,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:40:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:28,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:28,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:28,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:40:28,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:28,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:40:28,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:28,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:40:28,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:28,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:40:28,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:28,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 22:40:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:28,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:28,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:28,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:40:28,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:28,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 22:40:28,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:28,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:40:28,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 22:40:28,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:40:28,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:40:28,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:40:28,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [805425204] [2020-09-24 22:40:28,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:40:28,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:40:28,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257457572] [2020-09-24 22:40:28,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:40:28,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:40:28,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:40:28,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:40:28,722 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-24 22:40:28,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:40:28,837 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-24 22:40:28,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 22:40:28,840 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 22:40:28,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:40:28,854 INFO L225 Difference]: With dead ends: 44 [2020-09-24 22:40:28,854 INFO L226 Difference]: Without dead ends: 28 [2020-09-24 22:40:28,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:40:28,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-24 22:40:28,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-24 22:40:28,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 22:40:28,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-24 22:40:28,910 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-24 22:40:28,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:40:28,911 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-24 22:40:28,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:40:28,911 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-24 22:40:28,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-24 22:40:28,914 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:40:28,914 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:40:28,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:40:28,915 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:40:28,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:40:28,915 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-24 22:40:28,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:40:28,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [945483055] [2020-09-24 22:40:28,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:40:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:28,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:29,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:29,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 22:40:29,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:29,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-24 22:40:29,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:29,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:40:29,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:40:29,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:40:29,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:40:29,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:40:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:29,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:29,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:29,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:40:29,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:29,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:40:29,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:29,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:40:29,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:29,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:40:29,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 22:40:29,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 22:40:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:29,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:29,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:29,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:40:29,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:29,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-24 22:40:29,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:29,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:40:29,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 22:40:29,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:40:29,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:40:29,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:40:29,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [945483055] [2020-09-24 22:40:29,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:40:29,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:40:29,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947388505] [2020-09-24 22:40:29,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:40:29,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:40:29,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:40:29,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:40:29,255 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-24 22:40:29,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:40:29,335 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-24 22:40:29,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 22:40:29,336 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-24 22:40:29,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:40:29,338 INFO L225 Difference]: With dead ends: 36 [2020-09-24 22:40:29,338 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 22:40:29,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:40:29,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 22:40:29,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-24 22:40:29,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 22:40:29,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-24 22:40:29,348 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-24 22:40:29,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:40:29,349 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-24 22:40:29,349 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:40:29,349 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-24 22:40:29,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 22:40:29,351 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:40:29,351 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-09-24 22:40:29,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:40:29,352 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:40:29,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:40:29,352 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-24 22:40:29,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:40:29,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1401196734] [2020-09-24 22:40:29,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:40:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:29,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:29,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:29,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:29,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:29,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-24 22:40:29,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:40:29,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 541 [2020-09-24 22:40:29,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:29,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:40:29,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 22:40:29,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:40:29,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:40:29,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:40:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:29,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:29,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:29,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:40:29,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:29,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:40:29,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:29,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:40:29,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:29,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:40:29,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:40:29,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 22:40:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:29,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:30,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:30,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 22:40:30,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:30,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-24 22:40:30,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:30,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:40:30,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 22:40:30,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:40:30,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:30,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:40:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:30,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:30,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:30,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:40:30,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:30,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:40:30,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:30,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:40:30,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 22:40:30,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:40:30,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:30,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 22:40:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:30,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:30,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:30,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:40:30,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:30,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:40:30,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:30,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:40:30,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:40:30,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:40:30,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:40:30,116 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 22:40:30,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1401196734] [2020-09-24 22:40:30,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:40:30,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 22:40:30,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74421879] [2020-09-24 22:40:30,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 22:40:30,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:40:30,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 22:40:30,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:40:30,125 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 6 states. [2020-09-24 22:40:30,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:40:30,236 INFO L93 Difference]: Finished difference Result 52 states and 63 transitions. [2020-09-24 22:40:30,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 22:40:30,237 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-09-24 22:40:30,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:40:30,238 INFO L225 Difference]: With dead ends: 52 [2020-09-24 22:40:30,241 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 22:40:30,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:40:30,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 22:40:30,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-24 22:40:30,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-24 22:40:30,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-09-24 22:40:30,258 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 33 [2020-09-24 22:40:30,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:40:30,259 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-09-24 22:40:30,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 22:40:30,264 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-09-24 22:40:30,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-24 22:40:30,269 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:40:30,270 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:40:30,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:40:30,270 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:40:30,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:40:30,271 INFO L82 PathProgramCache]: Analyzing trace with hash -643371531, now seen corresponding path program 1 times [2020-09-24 22:40:30,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:40:30,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639411211] [2020-09-24 22:40:30,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:40:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:30,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:30,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:30,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:30,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 22:40:30,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:40:30,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 463 [2020-09-24 22:40:30,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:30,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:40:30,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:40:30,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:40:30,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:30,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:40:30,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:30,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:30,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:30,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:40:30,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:30,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:40:30,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:30,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:40:30,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:30,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:40:30,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:40:30,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 22:40:30,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:30,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:30,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:31,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:31,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 22:40:31,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:40:31,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 353 [2020-09-24 22:40:31,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:31,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:40:31,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 22:40:31,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 22:40:31,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:40:31,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:40:31,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:31,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:31,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:31,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:40:31,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:31,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 22:40:31,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:31,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:40:31,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:31,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:40:31,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:40:31,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 22:40:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:31,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:31,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:31,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:40:31,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:31,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 22:40:31,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:31,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:40:31,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:31,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:40:31,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:40:31,263 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 22:40:31,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639411211] [2020-09-24 22:40:31,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:40:31,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 22:40:31,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660592323] [2020-09-24 22:40:31,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 22:40:31,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:40:31,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 22:40:31,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:40:31,271 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 7 states. [2020-09-24 22:40:31,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:40:31,405 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2020-09-24 22:40:31,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 22:40:31,406 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-09-24 22:40:31,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:40:31,408 INFO L225 Difference]: With dead ends: 42 [2020-09-24 22:40:31,408 INFO L226 Difference]: Without dead ends: 36 [2020-09-24 22:40:31,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:40:31,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-24 22:40:31,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2020-09-24 22:40:31,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-09-24 22:40:31,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2020-09-24 22:40:31,426 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 34 [2020-09-24 22:40:31,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:40:31,428 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2020-09-24 22:40:31,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 22:40:31,429 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2020-09-24 22:40:31,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 22:40:31,430 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:40:31,430 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:40:31,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:40:31,431 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:40:31,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:40:31,432 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-24 22:40:31,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:40:31,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1377827301] [2020-09-24 22:40:31,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:40:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:31,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:31,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:31,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:31,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:31,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:31,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 22:40:31,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:40:31,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 515 [2020-09-24 22:40:31,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:31,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:40:31,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 22:40:31,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:40:31,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:31,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:40:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:31,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:31,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:31,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:40:31,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:31,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:40:31,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:31,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:40:31,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:31,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:40:31,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:40:31,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 22:40:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:31,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:32,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:32,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:32,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 22:40:32,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:40:32,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-24 22:40:32,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:32,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:40:32,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 22:40:32,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 22:40:32,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:40:32,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:40:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:32,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:32,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:32,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:40:32,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:32,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 22:40:32,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:32,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:40:32,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:32,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:40:32,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:40:32,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 22:40:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:32,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:32,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:32,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:32,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:40:32,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:40:32,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 22:40:32,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:32,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:40:32,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 22:40:32,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:40:32,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:40:32,230 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-24 22:40:32,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1377827301] [2020-09-24 22:40:32,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:40:32,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:40:32,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851028497] [2020-09-24 22:40:32,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:40:32,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:40:32,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:40:32,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:40:32,234 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 5 states. [2020-09-24 22:40:32,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:40:32,333 INFO L93 Difference]: Finished difference Result 78 states and 102 transitions. [2020-09-24 22:40:32,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 22:40:32,334 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-09-24 22:40:32,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:40:32,336 INFO L225 Difference]: With dead ends: 78 [2020-09-24 22:40:32,336 INFO L226 Difference]: Without dead ends: 50 [2020-09-24 22:40:32,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:40:32,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-24 22:40:32,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 38. [2020-09-24 22:40:32,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-24 22:40:32,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2020-09-24 22:40:32,350 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 35 [2020-09-24 22:40:32,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:40:32,350 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2020-09-24 22:40:32,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:40:32,350 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2020-09-24 22:40:32,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-24 22:40:32,353 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:40:32,353 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:40:32,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 22:40:32,354 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:40:32,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:40:32,354 INFO L82 PathProgramCache]: Analyzing trace with hash -154171110, now seen corresponding path program 2 times [2020-09-24 22:40:32,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:40:32,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1118737318] [2020-09-24 22:40:32,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:40:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:32,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:32,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:32,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:32,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:33,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:33,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:36,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:36,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-24 22:40:36,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 22:40:36,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3696 [2020-09-24 22:40:36,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:36,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 22:40:36,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 22:40:36,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 22:40:36,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:36,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:40:36,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:36,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:36,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:36,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:40:36,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:36,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:40:36,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:36,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:40:36,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:36,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:40:36,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:36,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 22:40:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:36,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:36,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:36,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:36,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:36,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 22:40:36,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:40:36,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-09-24 22:40:36,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:36,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 22:40:36,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 22:40:36,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 22:40:36,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:36,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:40:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:36,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:36,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:36,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:40:36,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:36,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 22:40:36,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:36,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:40:36,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:36,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:40:36,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:36,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 22:40:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:36,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:36,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:36,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:36,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:36,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 22:40:36,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:40:36,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-24 22:40:36,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:36,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:40:36,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 22:40:36,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 22:40:36,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:36,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:40:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:36,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:36,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:36,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:36,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:40:36,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:40:36,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 22:40:36,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:36,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:40:36,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:36,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:40:36,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:36,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 22:40:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:36,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:36,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:36,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:40:36,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:36,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:40:36,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:36,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:40:36,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:36,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:40:36,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:36,679 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 23 proven. 18 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-24 22:40:36,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1118737318] [2020-09-24 22:40:36,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:40:36,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 22:40:36,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982065082] [2020-09-24 22:40:36,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:40:36,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:40:36,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:40:36,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:40:36,686 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand 8 states. [2020-09-24 22:40:36,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:40:36,837 INFO L93 Difference]: Finished difference Result 78 states and 103 transitions. [2020-09-24 22:40:36,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 22:40:36,838 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-09-24 22:40:36,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:40:36,839 INFO L225 Difference]: With dead ends: 78 [2020-09-24 22:40:36,840 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 22:40:36,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-24 22:40:36,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 22:40:36,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2020-09-24 22:40:36,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-24 22:40:36,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2020-09-24 22:40:36,849 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 52 [2020-09-24 22:40:36,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:40:36,849 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2020-09-24 22:40:36,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:40:36,850 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2020-09-24 22:40:36,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-24 22:40:36,851 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:40:36,852 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:40:36,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 22:40:36,852 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:40:36,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:40:36,853 INFO L82 PathProgramCache]: Analyzing trace with hash 99184320, now seen corresponding path program 3 times [2020-09-24 22:40:36,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:40:36,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1785819916] [2020-09-24 22:40:36,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:40:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:36,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:36,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:36,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:38,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:38,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-24 22:40:38,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:40:38,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1810 [2020-09-24 22:40:38,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:38,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:40:38,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:40:38,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-24 22:40:38,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:38,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:40:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:38,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:38,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:38,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:40:38,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:38,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:40:38,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:38,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:40:38,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:38,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:40:38,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:38,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 22:40:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:38,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:38,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:38,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:40,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:40,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 22:40:40,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:40:40,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1730 [2020-09-24 22:40:40,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:40,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:40:40,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 22:40:40,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 22:40:40,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:40,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:40:40,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:40,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:40,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:40,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 22:40:40,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:40,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 22:40:40,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:40,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:40:40,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:40,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 22:40:40,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:40,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:40:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:40,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:40,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:40,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:40:40,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:40,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:40:40,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:40,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:40:40,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:40,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:40:40,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:40,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 22:40:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:40,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:40,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:40,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:40:40,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:40,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:40:40,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:40,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:40:40,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:40,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:40:40,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:40,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 22:40:40,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:40,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:40,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:40,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:40:40,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:40,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 22:40:40,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:40,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:40:40,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:40,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:40:40,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:40,562 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 24 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-24 22:40:40,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1785819916] [2020-09-24 22:40:40,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:40:40,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 22:40:40,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481036875] [2020-09-24 22:40:40,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 22:40:40,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:40:40,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 22:40:40,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:40:40,564 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 7 states. [2020-09-24 22:40:40,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:40:40,697 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2020-09-24 22:40:40,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 22:40:40,698 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2020-09-24 22:40:40,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:40:40,699 INFO L225 Difference]: With dead ends: 52 [2020-09-24 22:40:40,699 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 22:40:40,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:40:40,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 22:40:40,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2020-09-24 22:40:40,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-24 22:40:40,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2020-09-24 22:40:40,708 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 52 [2020-09-24 22:40:40,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:40:40,708 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2020-09-24 22:40:40,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 22:40:40,709 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2020-09-24 22:40:40,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-24 22:40:40,711 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:40:40,711 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:40:40,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 22:40:40,711 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:40:40,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:40:40,712 INFO L82 PathProgramCache]: Analyzing trace with hash 501566307, now seen corresponding path program 4 times [2020-09-24 22:40:40,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:40:40,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1755376314] [2020-09-24 22:40:40,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:40:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:40,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:40,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:40,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:40,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:40,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:40,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:41,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:41,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:44,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:44,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:45,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:45,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-24 22:40:45,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 22:40:45,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-24 22:40:45,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:45,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 22:40:45,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 22:40:45,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 22:40:45,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:45,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:40:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:45,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:45,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:45,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:40:45,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:45,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:40:45,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:45,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:40:45,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:45,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:40:45,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:45,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 22:40:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:45,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:45,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:45,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:45,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:45,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:45,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:46,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:46,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:49,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:49,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:50,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:50,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 22:40:50,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 22:40:50,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-24 22:40:50,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:50,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 22:40:50,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 22:40:50,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 22:40:50,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:50,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:40:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:50,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:50,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:50,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:50,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 22:40:50,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:40:50,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-09-24 22:40:50,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:50,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:40:50,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:50,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 22:40:50,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:51,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:40:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:51,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:51,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:51,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:40:51,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:51,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:40:51,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:51,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:40:51,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:51,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:40:51,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:51,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 22:40:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:51,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:51,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:51,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:40:51,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:51,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:40:51,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:51,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:40:51,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:51,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:40:51,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:40:51,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 22:40:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:51,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:51,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:51,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:51,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:51,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:51,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:52,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:52,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 22:40:52,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 22:40:52,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1850 [2020-09-24 22:40:52,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:52,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:40:52,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 22:40:52,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 22:40:52,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:52,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:40:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:52,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:52,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:52,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 22:40:52,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:52,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 22:40:52,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:52,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:40:52,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:52,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 22:40:52,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:52,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:40:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:52,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:52,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:52,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:40:52,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:52,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:40:52,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:52,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:40:52,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:52,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:40:52,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:52,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 22:40:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:52,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:52,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:52,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:40:52,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:52,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:40:52,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:52,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:40:52,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:52,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:40:52,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:52,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 22:40:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:53,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:53,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:53,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:53,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:40:53,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:40:53,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 22:40:53,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:53,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:40:53,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:53,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:40:53,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:53,067 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 82 proven. 62 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-09-24 22:40:53,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1755376314] [2020-09-24 22:40:53,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:40:53,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 22:40:53,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433526709] [2020-09-24 22:40:53,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:40:53,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:40:53,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:40:53,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:40:53,070 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 10 states. [2020-09-24 22:40:53,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:40:53,287 INFO L93 Difference]: Finished difference Result 106 states and 152 transitions. [2020-09-24 22:40:53,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 22:40:53,288 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2020-09-24 22:40:53,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:40:53,290 INFO L225 Difference]: With dead ends: 106 [2020-09-24 22:40:53,290 INFO L226 Difference]: Without dead ends: 72 [2020-09-24 22:40:53,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-24 22:40:53,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-24 22:40:53,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 64. [2020-09-24 22:40:53,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-09-24 22:40:53,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 85 transitions. [2020-09-24 22:40:53,303 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 85 transitions. Word has length 87 [2020-09-24 22:40:53,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:40:53,304 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 85 transitions. [2020-09-24 22:40:53,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:40:53,304 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 85 transitions. [2020-09-24 22:40:53,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 22:40:53,306 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:40:53,306 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:40:53,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 22:40:53,306 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:40:53,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:40:53,307 INFO L82 PathProgramCache]: Analyzing trace with hash -758395752, now seen corresponding path program 5 times [2020-09-24 22:40:53,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:40:53,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1757507123] [2020-09-24 22:40:53,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:40:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:53,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:53,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:53,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:53,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:53,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:53,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:54,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:54,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:55,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:56,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:57,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:57,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:57,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:58,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:58,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-24 22:40:58,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-24 22:40:58,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-24 22:40:58,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:58,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 22:40:58,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 22:40:58,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:40:58,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:58,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:40:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:58,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:58,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:40:58,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:40:58,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:40:58,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:40:58,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:40:58,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:40:58,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:40:58,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:40:58,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:40:58,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 22:40:58,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:40:58,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:58,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:58,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:58,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:58,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:58,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:58,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:59,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:40:59,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:03,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:03,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 22:41:03,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 22:41:03,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 22:41:03,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:03,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 22:41:03,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 22:41:03,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 22:41:03,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:03,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:41:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:03,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:03,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:03,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:03,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 22:41:03,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:41:03,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-09-24 22:41:03,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:03,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:41:03,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:03,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 22:41:03,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:03,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:41:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:03,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:03,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:03,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:41:03,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:03,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:41:03,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:03,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:41:03,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:03,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:41:03,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:03,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 22:41:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:03,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:03,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:03,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:03,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:03,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:41:03,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:03,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:03,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:03,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:41:03,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:03,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 22:41:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:03,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:03,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:03,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:03,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:03,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 22:41:03,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:41:03,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-24 22:41:03,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:03,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:41:03,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 22:41:03,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 22:41:03,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:03,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:41:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:03,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:03,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:03,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:03,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:41:03,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:41:03,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 22:41:03,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:03,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:03,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:03,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:41:03,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:03,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 22:41:03,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:03,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:03,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:03,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:03,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:03,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:41:03,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:03,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:41:03,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:03,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:41:03,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:03,994 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 52 proven. 37 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-24 22:41:03,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1757507123] [2020-09-24 22:41:03,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 22:41:03,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 22:41:03,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307498986] [2020-09-24 22:41:03,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:41:03,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:41:03,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:41:03,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:41:03,997 INFO L87 Difference]: Start difference. First operand 64 states and 85 transitions. Second operand 10 states. [2020-09-24 22:41:04,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:41:04,224 INFO L93 Difference]: Finished difference Result 114 states and 158 transitions. [2020-09-24 22:41:04,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 22:41:04,226 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 69 [2020-09-24 22:41:04,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:41:04,227 INFO L225 Difference]: With dead ends: 114 [2020-09-24 22:41:04,227 INFO L226 Difference]: Without dead ends: 53 [2020-09-24 22:41:04,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-24 22:41:04,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-24 22:41:04,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-24 22:41:04,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-24 22:41:04,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 62 transitions. [2020-09-24 22:41:04,246 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 62 transitions. Word has length 69 [2020-09-24 22:41:04,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:41:04,247 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 62 transitions. [2020-09-24 22:41:04,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:41:04,247 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 62 transitions. [2020-09-24 22:41:04,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-24 22:41:04,251 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:41:04,251 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:41:04,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 22:41:04,253 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:41:04,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:41:04,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1883941443, now seen corresponding path program 6 times [2020-09-24 22:41:04,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:41:04,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1467787015] [2020-09-24 22:41:04,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:41:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:04,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:04,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:04,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:04,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:04,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:04,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:04,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:04,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:05,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:06,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:06,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:09,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:09,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-24 22:41:09,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-24 22:41:09,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-24 22:41:09,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:09,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 22:41:09,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 22:41:09,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 22:41:09,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:09,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:41:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:09,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:09,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:09,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:41:09,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:09,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:41:09,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:09,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:09,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:09,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:09,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:09,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 22:41:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:09,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:09,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:09,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:09,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:09,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:09,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:10,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:10,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:10,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:10,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:10,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:10,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:10,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:11,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:11,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:12,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:12,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:12,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:14,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:14,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-24 22:41:14,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-24 22:41:14,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-24 22:41:14,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:14,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 22:41:14,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 22:41:14,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-24 22:41:14,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:14,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:41:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:14,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:14,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:14,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:15,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:15,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 22:41:15,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:41:15,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1184 [2020-09-24 22:41:15,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:15,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:41:15,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:15,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 22:41:15,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:15,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:41:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:15,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:15,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:15,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 22:41:15,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:15,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 22:41:15,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:15,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:41:15,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:15,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 22:41:15,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:15,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:41:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:15,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:15,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:15,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:41:15,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:15,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:41:15,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:15,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:15,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:15,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:15,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:15,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 22:41:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:15,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:15,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:15,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:41:15,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:15,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:41:15,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:15,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:41:15,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:15,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:41:15,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:15,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 22:41:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:15,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:15,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:15,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 22:41:15,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:41:15,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:41:15,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:41:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:41:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 22:41:15,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:15,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 22:41:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:15,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:15,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:15,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:15,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:15,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:16,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:17,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:17,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:17,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:17,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:17,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:17,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:17,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:17,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:20,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:41:20,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-24 22:41:20,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-09-24 22:41:20,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 22:41:20,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:41:20,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 22:41:20,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 22:41:20,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 22:41:20,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:41:20,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 22:41:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:41:20,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:20,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:20,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:20,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:20,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:41:20,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking...