/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=LOWLEXORDER --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_25-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:32:07,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:32:08,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:32:08,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:32:08,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:32:08,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:32:08,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:32:08,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:32:08,062 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:32:08,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:32:08,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:32:08,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:32:08,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:32:08,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:32:08,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:32:08,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:32:08,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:32:08,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:32:08,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:32:08,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:32:08,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:32:08,088 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:32:08,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:32:08,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:32:08,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:32:08,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:32:08,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:32:08,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:32:08,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:32:08,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:32:08,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:32:08,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:32:08,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:32:08,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:32:08,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:32:08,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:32:08,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:32:08,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:32:08,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:32:08,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:32:08,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:32:08,110 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 21:32:08,145 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:32:08,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:32:08,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:32:08,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:32:08,147 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:32:08,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:32:08,148 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:32:08,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:32:08,148 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:32:08,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:32:08,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:32:08,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:32:08,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:32:08,149 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:32:08,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:32:08,150 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:32:08,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:32:08,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:32:08,150 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:32:08,151 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:32:08,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:32:08,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:32:08,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:32:08,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:32:08,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:32:08,152 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:32:08,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:32:08,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:32:08,152 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:32:08,152 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:32:08,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:32:08,599 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:32:08,604 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:32:08,605 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:32:08,606 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:32:08,607 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_25-2.c [2020-09-24 21:32:08,686 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1aa25118f/d4bfcde07c2c457fa862bd244bd016da/FLAGe876c4902 [2020-09-24 21:32:09,212 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:32:09,213 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_25-2.c [2020-09-24 21:32:09,221 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1aa25118f/d4bfcde07c2c457fa862bd244bd016da/FLAGe876c4902 [2020-09-24 21:32:09,579 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1aa25118f/d4bfcde07c2c457fa862bd244bd016da [2020-09-24 21:32:09,592 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:32:09,599 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:32:09,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:32:09,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:32:09,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:32:09,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:32:09" (1/1) ... [2020-09-24 21:32:09,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d4fe80c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:32:09, skipping insertion in model container [2020-09-24 21:32:09,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:32:09" (1/1) ... [2020-09-24 21:32:09,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:32:09,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:32:09,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:32:09,843 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:32:09,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:32:09,876 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:32:09,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:32:09 WrapperNode [2020-09-24 21:32:09,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:32:09,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:32:09,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:32:09,878 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:32:09,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:32:09" (1/1) ... [2020-09-24 21:32:09,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:32:09" (1/1) ... [2020-09-24 21:32:09,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:32:09" (1/1) ... [2020-09-24 21:32:09,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:32:09" (1/1) ... [2020-09-24 21:32:09,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:32:09" (1/1) ... [2020-09-24 21:32:09,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:32:09" (1/1) ... [2020-09-24 21:32:09,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:32:09" (1/1) ... [2020-09-24 21:32:09,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:32:09,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:32:09,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:32:09,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:32:09,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:32:09" (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 21:32:10,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:32:10,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:32:10,057 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-24 21:32:10,057 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:32:10,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:32:10,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:32:10,057 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-24 21:32:10,058 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:32:10,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:32:10,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:32:10,259 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:32:10,259 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 21:32:10,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:32:10 BoogieIcfgContainer [2020-09-24 21:32:10,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:32:10,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:32:10,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:32:10,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:32:10,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:32:09" (1/3) ... [2020-09-24 21:32:10,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5edbb5bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:32:10, skipping insertion in model container [2020-09-24 21:32:10,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:32:09" (2/3) ... [2020-09-24 21:32:10,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5edbb5bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:32:10, skipping insertion in model container [2020-09-24 21:32:10,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:32:10" (3/3) ... [2020-09-24 21:32:10,274 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_25-2.c [2020-09-24 21:32:10,287 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:32:10,300 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:32:10,327 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:32:10,361 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:32:10,362 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:32:10,362 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:32:10,362 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:32:10,363 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:32:10,363 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:32:10,363 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:32:10,364 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:32:10,388 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-24 21:32:10,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 21:32:10,398 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:32:10,399 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:32:10,400 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:32:10,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:32:10,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-24 21:32:10,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:32:10,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330726263] [2020-09-24 21:32:10,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:32:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:10,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:10,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:10,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 21:32:10,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:10,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 21:32:10,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:10,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:32:10,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:32:10,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:32:10,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:32:10,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:32:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:10,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:10,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:10,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:32:10,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:10,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:32:10,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:10,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:10,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:10,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:10,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:10,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:32:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:10,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:10,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:10,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:10,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:10,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 21:32:10,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:10,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:32:10,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:32:10,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:32:10,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:32:10,733 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 21:32:10,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330726263] [2020-09-24 21:32:10,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:32:10,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:32:10,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099177864] [2020-09-24 21:32:10,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:32:10,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:32:10,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:32:10,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:32:10,764 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-24 21:32:10,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:32:10,871 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-24 21:32:10,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 21:32:10,873 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 21:32:10,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:32:10,888 INFO L225 Difference]: With dead ends: 44 [2020-09-24 21:32:10,888 INFO L226 Difference]: Without dead ends: 28 [2020-09-24 21:32:10,893 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 21:32:10,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-24 21:32:10,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-24 21:32:10,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 21:32:10,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-24 21:32:10,955 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-24 21:32:10,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:32:10,956 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-24 21:32:10,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:32:10,956 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-24 21:32:10,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-24 21:32:10,959 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:32:10,959 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 21:32:10,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:32:10,960 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:32:10,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:32:10,960 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-24 21:32:10,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:32:10,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366359855] [2020-09-24 21:32:10,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:32:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:10,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:11,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:11,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 21:32:11,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:11,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 21:32:11,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:11,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:32:11,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:32:11,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:32:11,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:32:11,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:32:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:11,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:11,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:11,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:32:11,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:11,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:32:11,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:11,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:11,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:11,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:11,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:32:11,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:32:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:11,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:11,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:11,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:11,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:11,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 21:32:11,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:11,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:32:11,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:32:11,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:32:11,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:32:11,180 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 21:32:11,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366359855] [2020-09-24 21:32:11,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:32:11,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:32:11,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875381641] [2020-09-24 21:32:11,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:32:11,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:32:11,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:32:11,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:32:11,184 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-24 21:32:11,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:32:11,250 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-24 21:32:11,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 21:32:11,251 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-24 21:32:11,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:32:11,253 INFO L225 Difference]: With dead ends: 36 [2020-09-24 21:32:11,253 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 21:32:11,254 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 21:32:11,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 21:32:11,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-24 21:32:11,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 21:32:11,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-24 21:32:11,263 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-24 21:32:11,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:32:11,263 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-24 21:32:11,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:32:11,264 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-24 21:32:11,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 21:32:11,265 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:32:11,266 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 21:32:11,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:32:11,266 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:32:11,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:32:11,266 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-24 21:32:11,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:32:11,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [242294496] [2020-09-24 21:32:11,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:32:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:11,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:11,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:11,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:11,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:11,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-24 21:32:11,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:32:11,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 578 [2020-09-24 21:32:11,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:11,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:32:11,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:32:11,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 21:32:11,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:32:11,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:32:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:11,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:11,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:11,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:32:11,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:11,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:32:11,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:11,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:11,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:32:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:11,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:11,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:11,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:12,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:12,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 21:32:12,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:32:12,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-09-24 21:32:12,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:12,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:32:12,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:32:12,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 21:32:12,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:12,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:12,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:12,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:12,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:12,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:12,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:12,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:32:12,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:12,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:32:12,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:12,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:32:12,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:12,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:32:12,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:12,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:12,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:12,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:12,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:12,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:32:12,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:12,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:12,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:12,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:32:12,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:32:12,246 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 21:32:12,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [242294496] [2020-09-24 21:32:12,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:32:12,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 21:32:12,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321466414] [2020-09-24 21:32:12,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:32:12,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:32:12,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:32:12,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:32:12,249 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 7 states. [2020-09-24 21:32:12,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:32:12,376 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-09-24 21:32:12,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 21:32:12,377 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-24 21:32:12,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:32:12,379 INFO L225 Difference]: With dead ends: 44 [2020-09-24 21:32:12,379 INFO L226 Difference]: Without dead ends: 38 [2020-09-24 21:32:12,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:32:12,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-24 21:32:12,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-09-24 21:32:12,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-24 21:32:12,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-24 21:32:12,391 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-24 21:32:12,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:32:12,391 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-24 21:32:12,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:32:12,392 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-24 21:32:12,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 21:32:12,394 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:32:12,394 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 21:32:12,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:32:12,394 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:32:12,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:32:12,395 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-24 21:32:12,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:32:12,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028995887] [2020-09-24 21:32:12,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:32:12,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:12,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:12,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:12,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:12,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:12,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:12,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 21:32:12,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:32:12,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 501 [2020-09-24 21:32:12,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:12,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:32:12,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:32:12,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 21:32:12,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:32:12,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:32:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:12,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:12,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:12,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:32:12,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:12,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:32:12,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:12,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:12,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:12,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:12,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:32:12,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:32:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:12,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:12,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:12,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:13,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:13,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:13,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 21:32:13,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:32:13,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 533 [2020-09-24 21:32:13,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:13,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:32:13,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:32:13,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 21:32:13,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:32:13,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:13,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:13,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:13,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:13,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:13,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 21:32:13,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:13,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:32:13,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:13,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:32:13,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:13,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:32:13,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:13,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:13,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:13,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:13,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:13,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:32:13,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:13,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:13,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:13,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:32:13,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:13,584 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 21:32:13,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028995887] [2020-09-24 21:32:13,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:32:13,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 21:32:13,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330556614] [2020-09-24 21:32:13,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:32:13,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:32:13,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:32:13,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:32:13,587 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 7 states. [2020-09-24 21:32:13,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:32:13,711 INFO L93 Difference]: Finished difference Result 88 states and 137 transitions. [2020-09-24 21:32:13,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:32:13,712 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-24 21:32:13,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:32:13,716 INFO L225 Difference]: With dead ends: 88 [2020-09-24 21:32:13,716 INFO L226 Difference]: Without dead ends: 58 [2020-09-24 21:32:13,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:32:13,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-24 21:32:13,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2020-09-24 21:32:13,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-24 21:32:13,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions. [2020-09-24 21:32:13,733 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 35 [2020-09-24 21:32:13,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:32:13,733 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions. [2020-09-24 21:32:13,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:32:13,734 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2020-09-24 21:32:13,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 21:32:13,737 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:32:13,737 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 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 21:32:13,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:32:13,738 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:32:13,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:32:13,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1693530075, now seen corresponding path program 1 times [2020-09-24 21:32:13,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:32:13,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1441483023] [2020-09-24 21:32:13,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:32:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:13,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:13,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:13,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:13,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:13,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:14,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:14,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:18,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:18,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 21:32:18,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 21:32:18,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 21:32:18,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:18,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:32:18,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:32:18,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 21:32:18,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:18,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:32:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:18,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:18,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:18,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:32:18,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:18,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:32:18,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:18,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:18,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:18,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:18,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:18,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:32:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:18,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:18,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:18,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:18,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:19,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:19,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:19,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:22,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:22,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 21:32:22,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 21:32:22,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3329 [2020-09-24 21:32:22,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:22,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:32:22,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:32:22,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 21:32:22,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:22,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:22,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:22,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:22,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:22,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 21:32:22,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:32:22,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-24 21:32:22,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:22,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:32:22,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:22,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 21:32:22,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:22,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:22,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:22,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:22,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:22,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:22,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:22,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:32:22,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:22,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:32:22,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:22,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:32:22,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:22,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:32:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:22,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:22,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:22,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:22,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:22,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:32:22,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:22,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:22,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:22,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:32:22,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:22,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 21:32:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:22,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:22,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:22,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:22,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:22,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:32:22,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:22,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:22,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:22,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:32:22,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:22,301 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-24 21:32:22,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1441483023] [2020-09-24 21:32:22,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:32:22,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 21:32:22,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203683349] [2020-09-24 21:32:22,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:32:22,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:32:22,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:32:22,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:32:22,304 INFO L87 Difference]: Start difference. First operand 50 states and 69 transitions. Second operand 7 states. [2020-09-24 21:32:22,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:32:22,421 INFO L93 Difference]: Finished difference Result 86 states and 126 transitions. [2020-09-24 21:32:22,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:32:22,422 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-09-24 21:32:22,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:32:22,428 INFO L225 Difference]: With dead ends: 86 [2020-09-24 21:32:22,428 INFO L226 Difference]: Without dead ends: 80 [2020-09-24 21:32:22,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:32:22,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-24 21:32:22,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 74. [2020-09-24 21:32:22,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-24 21:32:22,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 111 transitions. [2020-09-24 21:32:22,462 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 111 transitions. Word has length 51 [2020-09-24 21:32:22,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:32:22,465 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 111 transitions. [2020-09-24 21:32:22,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:32:22,465 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 111 transitions. [2020-09-24 21:32:22,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-24 21:32:22,475 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:32:22,475 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 21:32:22,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 21:32:22,475 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:32:22,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:32:22,478 INFO L82 PathProgramCache]: Analyzing trace with hash 99184320, now seen corresponding path program 2 times [2020-09-24 21:32:22,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:32:22,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138679865] [2020-09-24 21:32:22,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:32:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:22,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:22,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:22,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:24,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:24,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-24 21:32:24,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:32:24,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1596 [2020-09-24 21:32:24,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:24,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:32:24,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:32:24,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 21:32:24,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:24,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:32:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:24,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:24,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:24,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:32:24,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:24,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:32:24,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:24,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:24,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:24,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:24,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:24,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:32:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:24,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:24,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:24,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:25,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:25,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 21:32:25,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:32:25,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1538 [2020-09-24 21:32:25,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:25,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:32:25,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:32:25,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 21:32:25,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:25,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:25,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:25,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:25,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:25,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 21:32:25,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:32:25,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-24 21:32:25,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:25,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:32:25,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:25,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 21:32:25,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:25,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:25,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:25,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:25,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:25,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:25,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:32:25,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:25,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:32:25,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:25,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:32:25,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:25,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:32:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:25,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:25,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:25,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:25,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:25,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:32:25,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:25,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:32:25,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:25,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 21:32:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:25,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:25,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:26,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:26,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:26,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:32:26,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:26,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:26,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:26,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:32:26,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:26,008 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 8 proven. 31 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 21:32:26,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138679865] [2020-09-24 21:32:26,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:32:26,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 21:32:26,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539402229] [2020-09-24 21:32:26,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:32:26,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:32:26,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:32:26,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:32:26,011 INFO L87 Difference]: Start difference. First operand 74 states and 111 transitions. Second operand 8 states. [2020-09-24 21:32:26,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:32:26,148 INFO L93 Difference]: Finished difference Result 184 states and 319 transitions. [2020-09-24 21:32:26,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 21:32:26,149 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-09-24 21:32:26,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:32:26,152 INFO L225 Difference]: With dead ends: 184 [2020-09-24 21:32:26,152 INFO L226 Difference]: Without dead ends: 116 [2020-09-24 21:32:26,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:32:26,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-09-24 21:32:26,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 88. [2020-09-24 21:32:26,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-09-24 21:32:26,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 135 transitions. [2020-09-24 21:32:26,172 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 135 transitions. Word has length 52 [2020-09-24 21:32:26,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:32:26,172 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 135 transitions. [2020-09-24 21:32:26,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:32:26,172 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 135 transitions. [2020-09-24 21:32:26,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-09-24 21:32:26,175 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:32:26,175 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:32:26,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 21:32:26,175 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:32:26,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:32:26,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1607002557, now seen corresponding path program 3 times [2020-09-24 21:32:26,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:32:26,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [581276631] [2020-09-24 21:32:26,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:32:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:26,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:26,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:26,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:26,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:26,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:26,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:26,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:27,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:28,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:28,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:28,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:28,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:28,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:28,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:28,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:28,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:29,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:29,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:29,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:29,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:30,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:31,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:31,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-09-24 21:32:31,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-09-24 21:32:31,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-24 21:32:31,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:31,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 21:32:31,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:32:31,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 21:32:31,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:31,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:32:31,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:31,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:31,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:31,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:32:31,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:31,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:32:31,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:31,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:31,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:31,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:31,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:31,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:32:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:31,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:31,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:31,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:31,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:31,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:31,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:31,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:31,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:32,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:32,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:32,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:32,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:32,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:33,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:33,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:33,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:33,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:35,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:36,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:36,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-24 21:32:36,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-24 21:32:36,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 21:32:36,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:36,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:32:36,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 21:32:36,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-24 21:32:36,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:36,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:36,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:36,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:36,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:36,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:36,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:36,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:36,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:36,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:36,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:36,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:36,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:36,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:37,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:37,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:37,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:37,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:40,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:40,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 21:32:40,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-24 21:32:40,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4264 [2020-09-24 21:32:40,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:40,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 21:32:40,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:40,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 21:32:40,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:40,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:40,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:40,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:40,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:40,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:40,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 21:32:40,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:32:40,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 21:32:40,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:40,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:32:40,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:40,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 21:32:40,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:40,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:40,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:40,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:40,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:40,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:40,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:32:40,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:40,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:32:40,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:40,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:32:40,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:40,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:32:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:40,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:40,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:40,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:40,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:40,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:32:40,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:40,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:40,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:40,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:32:40,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:40,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 21:32:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:40,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:40,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:40,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:40,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:40,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:32:40,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:40,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:40,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:40,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:32:40,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:40,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-24 21:32:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:40,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:40,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:40,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:41,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:41,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:41,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:41,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:41,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:42,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:43,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:43,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:43,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:43,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:44,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:45,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:45,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-24 21:32:45,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-09-24 21:32:45,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 21:32:45,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:45,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:32:45,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:32:45,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-24 21:32:45,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:46,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:46,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:46,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:46,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:46,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:46,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:46,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:47,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:47,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 21:32:47,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 21:32:47,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1338 [2020-09-24 21:32:47,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:47,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:32:47,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:47,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 21:32:47,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:47,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:47,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:47,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:47,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:47,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:47,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 21:32:47,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:32:47,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 21:32:47,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:47,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:47,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:47,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 21:32:47,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:47,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:47,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:47,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:47,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:47,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:47,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:32:47,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:47,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:47,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:47,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:47,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:47,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 21:32:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:47,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:47,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:47,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:47,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:47,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:32:47,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:47,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:47,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:47,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:47,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:47,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 21:32:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:47,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:47,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:47,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:32:47,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:47,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:32:47,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:47,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:47,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:47,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:32:47,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:47,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-24 21:32:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:47,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:47,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:47,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:32:47,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:47,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:32:47,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:47,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:32:47,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:47,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:32:47,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:47,535 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 116 proven. 175 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2020-09-24 21:32:47,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [581276631] [2020-09-24 21:32:47,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:32:47,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 21:32:47,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138540948] [2020-09-24 21:32:47,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 21:32:47,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:32:47,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 21:32:47,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2020-09-24 21:32:47,538 INFO L87 Difference]: Start difference. First operand 88 states and 135 transitions. Second operand 17 states. [2020-09-24 21:32:47,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:32:47,958 INFO L93 Difference]: Finished difference Result 163 states and 272 transitions. [2020-09-24 21:32:47,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 21:32:47,963 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 119 [2020-09-24 21:32:47,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:32:47,966 INFO L225 Difference]: With dead ends: 163 [2020-09-24 21:32:47,966 INFO L226 Difference]: Without dead ends: 65 [2020-09-24 21:32:47,968 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2020-09-24 21:32:47,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-09-24 21:32:47,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 59. [2020-09-24 21:32:47,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-24 21:32:47,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 74 transitions. [2020-09-24 21:32:47,985 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 74 transitions. Word has length 119 [2020-09-24 21:32:47,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:32:47,986 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 74 transitions. [2020-09-24 21:32:47,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 21:32:47,986 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions. [2020-09-24 21:32:47,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-24 21:32:47,991 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:32:47,991 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 21:32:47,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 21:32:47,991 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:32:47,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:32:47,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1883941443, now seen corresponding path program 4 times [2020-09-24 21:32:47,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:32:47,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811422571] [2020-09-24 21:32:47,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:32:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:48,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:48,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:48,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:48,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:48,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:48,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:48,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:48,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:48,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:49,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:49,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:53,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:53,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-24 21:32:53,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-24 21:32:53,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-24 21:32:53,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:53,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 21:32:53,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:32:53,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 21:32:53,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:53,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:32:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:53,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:53,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:53,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:32:53,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:32:53,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:32:53,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:53,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:32:53,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:32:53,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:32:53,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:53,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:32:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:53,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:53,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:53,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:53,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:53,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:53,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:54,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:54,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:54,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:54,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:54,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:54,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:54,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:54,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:54,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:55,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:55,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:56,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:58,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:32:58,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-24 21:32:58,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-24 21:32:58,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-24 21:32:58,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:32:58,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:32:58,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 21:32:58,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 21:32:58,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:32:58,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:32:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:32:58,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:58,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:58,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:58,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:58,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:32:58,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:01,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:03,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:03,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 21:33:03,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 21:33:03,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-24 21:33:03,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 21:33:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:33:03,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 21:33:03,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:33:03,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:33:03,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:03,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:03,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:03,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:03,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:03,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 21:33:03,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:33:03,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-09-24 21:33:03,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:03,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:33:03,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:33:03,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 21:33:03,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:33:03,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:33:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:03,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:03,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:03,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:33:03,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:33:03,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:33:03,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:03,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:33:03,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:33:03,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:33:03,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:33:03,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 21:33:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:03,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:03,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:03,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:33:03,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:33:03,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 21:33:03,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:03,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:33:03,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:33:03,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:33:03,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:33:03,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 21:33:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:03,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:03,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:33:03,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:33:03,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:33:03,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:33:03,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:33:03,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:33:03,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:33:03,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:33:03,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:33:03,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 21:33:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:33:03,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:03,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:03,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:03,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:33:03,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking...