/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_25-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:59:37,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:59:37,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:59:37,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:59:37,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:59:37,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:59:37,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:59:37,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:59:37,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:59:37,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:59:37,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:59:37,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:59:37,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:59:37,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:59:37,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:59:37,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:59:37,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:59:37,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:59:37,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:59:37,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:59:37,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:59:37,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:59:37,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:59:37,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:59:37,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:59:37,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:59:37,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:59:37,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:59:37,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:59:37,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:59:37,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:59:37,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:59:37,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:59:37,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:59:37,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:59:37,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:59:37,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:59:37,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:59:37,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:59:37,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:59:37,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:59:37,202 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 09:59:37,253 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:59:37,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:59:37,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:59:37,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:59:37,256 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:59:37,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:59:37,257 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:59:37,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:59:37,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:59:37,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:59:37,258 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:59:37,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:59:37,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:59:37,259 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:59:37,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:59:37,260 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:59:37,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:59:37,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:59:37,260 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:59:37,260 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:59:37,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:59:37,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:59:37,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:59:37,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:59:37,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:59:37,262 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:59:37,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:59:37,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:59:37,262 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:59:37,263 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:59:37,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:59:37,754 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:59:37,759 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:59:37,760 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:59:37,761 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:59:37,762 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_25-2.c [2020-09-25 09:59:37,844 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/209335eeb/e8e4fd30864544db9836ca7016fd6d7d/FLAGfb08886fc [2020-09-25 09:59:38,361 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:59:38,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_25-2.c [2020-09-25 09:59:38,371 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/209335eeb/e8e4fd30864544db9836ca7016fd6d7d/FLAGfb08886fc [2020-09-25 09:59:38,723 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/209335eeb/e8e4fd30864544db9836ca7016fd6d7d [2020-09-25 09:59:38,737 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:59:38,744 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:59:38,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:59:38,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:59:38,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:59:38,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:59:38" (1/1) ... [2020-09-25 09:59:38,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3729b9de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:38, skipping insertion in model container [2020-09-25 09:59:38,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:59:38" (1/1) ... [2020-09-25 09:59:38,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:59:38,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:59:39,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:59:39,034 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:59:39,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:59:39,066 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:59:39,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:39 WrapperNode [2020-09-25 09:59:39,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:59:39,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:59:39,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:59:39,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:59:39,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:39" (1/1) ... [2020-09-25 09:59:39,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:39" (1/1) ... [2020-09-25 09:59:39,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:39" (1/1) ... [2020-09-25 09:59:39,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:39" (1/1) ... [2020-09-25 09:59:39,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:39" (1/1) ... [2020-09-25 09:59:39,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:39" (1/1) ... [2020-09-25 09:59:39,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:39" (1/1) ... [2020-09-25 09:59:39,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:59:39,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:59:39,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:59:39,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:59:39,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:59:39,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:59:39,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:59:39,246 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-25 09:59:39,247 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:59:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:59:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:59:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-25 09:59:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:59:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:59:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:59:39,454 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:59:39,455 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 09:59:39,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:59:39 BoogieIcfgContainer [2020-09-25 09:59:39,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:59:39,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:59:39,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:59:39,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:59:39,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:59:38" (1/3) ... [2020-09-25 09:59:39,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@400c1cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:59:39, skipping insertion in model container [2020-09-25 09:59:39,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:39" (2/3) ... [2020-09-25 09:59:39,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@400c1cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:59:39, skipping insertion in model container [2020-09-25 09:59:39,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:59:39" (3/3) ... [2020-09-25 09:59:39,494 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_25-2.c [2020-09-25 09:59:39,513 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:59:39,548 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:59:39,591 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:59:39,621 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:59:39,621 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:59:39,622 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:59:39,622 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:59:39,622 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:59:39,622 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:59:39,622 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:59:39,623 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:59:39,642 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-25 09:59:39,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 09:59:39,650 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:39,651 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:39,652 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:39,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:39,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-25 09:59:39,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:39,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [643229250] [2020-09-25 09:59:39,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:39,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:39,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:39,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:59:39,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:39,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 09:59:39,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:39,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:39,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:59:39,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:39,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:59:39,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 09:59:39,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:39,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:39,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:39,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:39,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:39,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:39,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:39,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:39,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:39,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:39,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:39,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:39,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:39,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:39,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:39,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:39,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:39,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 09:59:39,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:39,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:39,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:59:39,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:39,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:59:39,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:40,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:59:40,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [643229250] [2020-09-25 09:59:40,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:59:40,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:59:40,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813499516] [2020-09-25 09:59:40,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:59:40,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:40,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:59:40,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:59:40,059 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-25 09:59:40,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:40,197 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-25 09:59:40,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 09:59:40,199 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 09:59:40,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:40,212 INFO L225 Difference]: With dead ends: 44 [2020-09-25 09:59:40,213 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 09:59:40,217 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 [2020-09-25 09:59:40,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 09:59:40,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 09:59:40,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 09:59:40,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 09:59:40,278 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-25 09:59:40,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:40,278 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 09:59:40,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:59:40,279 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 09:59:40,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 09:59:40,281 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:40,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:40,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:59:40,282 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:40,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:40,283 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-25 09:59:40,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:40,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [935718513] [2020-09-25 09:59:40,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:40,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:40,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:40,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 09:59:40,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:40,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 09:59:40,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:40,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:40,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:59:40,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:40,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:59:40,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:40,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:40,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:40,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:40,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:40,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:40,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:40,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:40,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:40,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:40,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:40,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:40,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:40,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:40,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:40,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:40,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:40,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:40,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:40,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 09:59:40,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:40,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:40,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:59:40,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:40,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:40,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:40,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:59:40,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [935718513] [2020-09-25 09:59:40,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:59:40,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:59:40,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455045865] [2020-09-25 09:59:40,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:59:40,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:40,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:59:40,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:59:40,487 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-25 09:59:40,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:40,596 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-25 09:59:40,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 09:59:40,597 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 09:59:40,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:40,599 INFO L225 Difference]: With dead ends: 36 [2020-09-25 09:59:40,599 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 09:59:40,600 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 [2020-09-25 09:59:40,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 09:59:40,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-25 09:59:40,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 09:59:40,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 09:59:40,609 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-25 09:59:40,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:40,610 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 09:59:40,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:59:40,610 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 09:59:40,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 09:59:40,612 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:40,612 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] [2020-09-25 09:59:40,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:59:40,612 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:40,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:40,613 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-25 09:59:40,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:40,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1994338452] [2020-09-25 09:59:40,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:40,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:40,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:40,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:41,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 09:59:41,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:59:41,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 648 [2020-09-25 09:59:41,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:41,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:41,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:41,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:41,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:59:41,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 09:59:41,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:41,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:41,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:41,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:41,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:59:41,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:41,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:41,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:41,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:41,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:41,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:41,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:41,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:41,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:41,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 09:59:41,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:59:41,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-09-25 09:59:41,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:41,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:41,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:41,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:41,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 09:59:41,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:41,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:41,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:41,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:41,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:41,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:59:41,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:41,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:41,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:41,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:41,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:59:41,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:41,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:59:41,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:41,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:41,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:41,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:41,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:59:41,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:41,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:41,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:41,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:41,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:41,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:41,745 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 09:59:41,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1994338452] [2020-09-25 09:59:41,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:59:41,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 09:59:41,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425729282] [2020-09-25 09:59:41,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:59:41,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:41,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:59:41,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:59:41,751 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 6 states. [2020-09-25 09:59:41,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:41,841 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-09-25 09:59:41,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 09:59:41,842 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-09-25 09:59:41,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:41,844 INFO L225 Difference]: With dead ends: 44 [2020-09-25 09:59:41,845 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 09:59:41,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:59:41,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 09:59:41,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-09-25 09:59:41,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 09:59:41,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-25 09:59:41,858 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-25 09:59:41,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:41,860 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-25 09:59:41,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:59:41,861 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-25 09:59:41,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 09:59:41,866 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:41,867 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] [2020-09-25 09:59:41,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:59:41,867 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:41,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:41,868 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-25 09:59:41,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:41,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428846500] [2020-09-25 09:59:41,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:41,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:42,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 09:59:42,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:59:42,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 565 [2020-09-25 09:59:42,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:42,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:42,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:42,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:42,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 09:59:42,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:59:42,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:42,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:42,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:42,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:42,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:59:42,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:42,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:42,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:42,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:42,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:42,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:59:42,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:42,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:42,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 09:59:42,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:59:42,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 447 [2020-09-25 09:59:42,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:42,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:42,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:42,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:42,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 09:59:42,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:42,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:42,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:42,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:42,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:42,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 09:59:42,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:42,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:42,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:42,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:42,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:59:42,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:43,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 09:59:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:43,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:43,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:43,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:43,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:43,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:59:43,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:43,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:43,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:43,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:43,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:43,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:43,027 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 09:59:43,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428846500] [2020-09-25 09:59:43,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:59:43,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 09:59:43,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059333595] [2020-09-25 09:59:43,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:59:43,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:43,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:59:43,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:59:43,030 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 6 states. [2020-09-25 09:59:43,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:43,149 INFO L93 Difference]: Finished difference Result 88 states and 137 transitions. [2020-09-25 09:59:43,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:59:43,150 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-25 09:59:43,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:43,153 INFO L225 Difference]: With dead ends: 88 [2020-09-25 09:59:43,154 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 09:59:43,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:59:43,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 09:59:43,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2020-09-25 09:59:43,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 09:59:43,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions. [2020-09-25 09:59:43,171 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 35 [2020-09-25 09:59:43,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:43,172 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions. [2020-09-25 09:59:43,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:59:43,172 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2020-09-25 09:59:43,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 09:59:43,176 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:43,176 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] [2020-09-25 09:59:43,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:59:43,177 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:43,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:43,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1693530075, now seen corresponding path program 1 times [2020-09-25 09:59:43,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:43,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [787863889] [2020-09-25 09:59:43,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:43,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:43,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:43,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:43,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:43,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:43,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:43,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:48,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 09:59:48,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 09:59:48,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 09:59:48,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:48,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:48,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:48,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:48,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 09:59:48,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:48,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:48,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:48,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:48,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:48,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:48,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:59:48,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:48,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:48,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:48,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:48,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:48,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:48,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:48,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:49,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:51,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:51,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 09:59:51,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 09:59:51,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3688 [2020-09-25 09:59:51,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:51,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:51,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:51,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:51,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 09:59:51,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:51,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:51,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:51,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:52,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:52,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 09:59:52,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:59:52,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 09:59:52,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:52,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:52,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:52,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:52,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 09:59:52,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:52,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:52,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:52,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:52,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:52,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:52,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:59:52,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:52,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:52,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:52,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:52,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:52,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:52,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:59:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:52,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:52,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:52,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:52,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:52,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:52,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:52,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:52,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:52,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:52,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:52,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:52,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 09:59:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:52,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:52,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:52,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:52,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:52,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 09:59:52,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:52,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:52,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:52,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:52,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:59:52,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:52,116 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-25 09:59:52,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [787863889] [2020-09-25 09:59:52,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:59:52,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 09:59:52,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316194859] [2020-09-25 09:59:52,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:59:52,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:52,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:59:52,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:59:52,120 INFO L87 Difference]: Start difference. First operand 50 states and 69 transitions. Second operand 6 states. [2020-09-25 09:59:52,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:52,198 INFO L93 Difference]: Finished difference Result 70 states and 95 transitions. [2020-09-25 09:59:52,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 09:59:52,199 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2020-09-25 09:59:52,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:52,202 INFO L225 Difference]: With dead ends: 70 [2020-09-25 09:59:52,202 INFO L226 Difference]: Without dead ends: 64 [2020-09-25 09:59:52,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:59:52,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-09-25 09:59:52,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 58. [2020-09-25 09:59:52,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 09:59:52,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 81 transitions. [2020-09-25 09:59:52,215 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 81 transitions. Word has length 51 [2020-09-25 09:59:52,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:52,216 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 81 transitions. [2020-09-25 09:59:52,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:59:52,216 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 81 transitions. [2020-09-25 09:59:52,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 09:59:52,220 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:52,220 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:52,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 09:59:52,220 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:52,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:52,221 INFO L82 PathProgramCache]: Analyzing trace with hash 809102171, now seen corresponding path program 2 times [2020-09-25 09:59:52,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:52,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278517682] [2020-09-25 09:59:52,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:52,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:52,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:52,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:52,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:52,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:52,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:53,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:54,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:54,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:54,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:55,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:55,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:56,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:56,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:56,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:56,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:57,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 09:59:57,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-25 09:59:57,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 09:59:57,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:57,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:57,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 09:59:57,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:57,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 09:59:57,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:57,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:57,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:57,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:57,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:57,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:59:57,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:57,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:57,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:57,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:57,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:57,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:59:57,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:57,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:02,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:02,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 10:00:02,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 10:00:02,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 10:00:02,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:02,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:02,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:00:02,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 10:00:02,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 10:00:02,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:02,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:02,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:02,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:02,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:02,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:02,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:02,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 10:00:02,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:00:02,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-25 10:00:02,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:02,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:02,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:00:02,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:02,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 10:00:02,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:02,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:02,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:02,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:02,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:02,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:02,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:00:02,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:02,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:02,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:02,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:02,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:02,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:02,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 10:00:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:02,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:02,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:02,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:02,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:02,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:00:02,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:02,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:02,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:02,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:02,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:00:02,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:02,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 10:00:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:02,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:02,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:02,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:02,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:02,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:02,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:04,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 10:00:04,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 10:00:04,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1845 [2020-09-25 10:00:04,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:04,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:04,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:04,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:00:04,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 10:00:04,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:04,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:04,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:04,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:04,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:04,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:04,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:00:04,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:04,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:04,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:04,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:04,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:04,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:04,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:00:04,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:04,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:04,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 10:00:04,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:00:04,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 10:00:04,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:04,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:04,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:04,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:04,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:00:04,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:04,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:04,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:04,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:04,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:04,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:04,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:00:04,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:04,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:04,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:04,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:04,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:04,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:04,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 10:00:04,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:04,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:04,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:04,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:04,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:00:04,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:04,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:04,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:04,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:04,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:04,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:04,572 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 53 proven. 71 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-09-25 10:00:04,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278517682] [2020-09-25 10:00:04,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:00:04,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 10:00:04,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661844670] [2020-09-25 10:00:04,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 10:00:04,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:00:04,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 10:00:04,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:00:04,576 INFO L87 Difference]: Start difference. First operand 58 states and 81 transitions. Second operand 11 states. [2020-09-25 10:00:04,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:00:04,808 INFO L93 Difference]: Finished difference Result 102 states and 145 transitions. [2020-09-25 10:00:04,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:00:04,811 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 85 [2020-09-25 10:00:04,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:00:04,813 INFO L225 Difference]: With dead ends: 102 [2020-09-25 10:00:04,815 INFO L226 Difference]: Without dead ends: 49 [2020-09-25 10:00:04,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-09-25 10:00:04,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-25 10:00:04,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2020-09-25 10:00:04,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-25 10:00:04,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2020-09-25 10:00:04,824 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 85 [2020-09-25 10:00:04,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:00:04,824 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2020-09-25 10:00:04,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 10:00:04,824 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2020-09-25 10:00:04,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 10:00:04,827 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:04,827 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:00:04,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 10:00:04,828 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:04,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:04,828 INFO L82 PathProgramCache]: Analyzing trace with hash 501566307, now seen corresponding path program 3 times [2020-09-25 10:00:04,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:04,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [69905488] [2020-09-25 10:00:04,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:04,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:05,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:05,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:07,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:07,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:09,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:09,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 10:00:09,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 10:00:09,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 10:00:09,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:09,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:09,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:00:09,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 10:00:09,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 10:00:09,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:09,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:09,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:09,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:09,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:09,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:09,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:00:09,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:09,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:09,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:09,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:09,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:09,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:09,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:09,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:09,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:09,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:10,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:10,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:10,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:10,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:10,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:10,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:11,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:11,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:14,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:14,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 10:00:14,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 10:00:14,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 10:00:14,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:14,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:14,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:00:14,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 10:00:14,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 10:00:14,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:14,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:14,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:14,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:15,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:15,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 10:00:15,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:00:15,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-09-25 10:00:15,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:15,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:15,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:00:15,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:15,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 10:00:15,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:15,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:15,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:15,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:15,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:15,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:15,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:00:15,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:15,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:15,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:15,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:15,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:15,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:15,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:00:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:15,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:15,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:15,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:15,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:15,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:00:15,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:15,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:15,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:15,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:15,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:15,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:15,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 10:00:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:15,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:15,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:15,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:15,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:15,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:15,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:16,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:16,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 10:00:16,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 10:00:16,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1645 [2020-09-25 10:00:16,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:16,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:16,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:16,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:00:16,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 10:00:16,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:16,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:16,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:16,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:16,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 10:00:16,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:16,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 10:00:16,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:16,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:16,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:16,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:16,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 10:00:16,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:16,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:16,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:16,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:16,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:16,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:16,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:00:16,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:16,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:16,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:16,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:16,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:16,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:16,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:00:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:16,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:16,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:16,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:16,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:16,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:00:16,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:16,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:16,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:16,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:16,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:16,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:16,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 10:00:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:16,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:16,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:16,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:16,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:16,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:00:16,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:16,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:16,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:16,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:16,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:16,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:16,962 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 59 proven. 67 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-09-25 10:00:16,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [69905488] [2020-09-25 10:00:16,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:00:16,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 10:00:16,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222366991] [2020-09-25 10:00:16,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 10:00:16,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:00:16,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 10:00:16,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:00:16,965 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand 10 states. [2020-09-25 10:00:17,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:00:17,205 INFO L93 Difference]: Finished difference Result 99 states and 129 transitions. [2020-09-25 10:00:17,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:00:17,206 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2020-09-25 10:00:17,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:00:17,208 INFO L225 Difference]: With dead ends: 99 [2020-09-25 10:00:17,209 INFO L226 Difference]: Without dead ends: 60 [2020-09-25 10:00:17,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-09-25 10:00:17,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-25 10:00:17,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2020-09-25 10:00:17,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 10:00:17,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2020-09-25 10:00:17,219 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 87 [2020-09-25 10:00:17,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:00:17,219 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2020-09-25 10:00:17,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 10:00:17,219 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2020-09-25 10:00:17,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-25 10:00:17,221 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:17,221 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] [2020-09-25 10:00:17,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 10:00:17,221 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:17,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:17,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1883941443, now seen corresponding path program 4 times [2020-09-25 10:00:17,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:17,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2010806472] [2020-09-25 10:00:17,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:17,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:17,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:17,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:17,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:17,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:17,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:17,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:17,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:18,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:19,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:19,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:22,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:22,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 10:00:22,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 10:00:22,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 10:00:22,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:22,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:22,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:00:22,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 10:00:22,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 10:00:22,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:22,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:22,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:22,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:22,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:22,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:22,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:00:22,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:22,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:22,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:22,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:22,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:22,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:22,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:22,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:22,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:22,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:22,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:24,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:26,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:26,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:26,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:26,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:26,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:27,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 10:00:27,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-25 10:00:27,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 10:00:27,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:27,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:27,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:00:27,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 10:00:27,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 10:00:27,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:27,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:27,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:28,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 10:00:28,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:00:28,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009 [2020-09-25 10:00:28,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:28,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:28,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:00:28,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:28,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 10:00:28,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:28,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:28,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:28,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 10:00:28,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:28,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 10:00:28,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:28,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:28,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:28,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:28,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 10:00:28,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:28,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:28,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:28,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:28,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:28,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:00:28,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:28,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:28,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:28,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:28,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:28,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 10:00:28,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:00:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:28,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:28,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:28,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:28,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:00:28,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:28,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:28,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:28,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:28,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:28,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:28,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 10:00:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:28,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:28,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:28,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:28,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 10:00:28,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:28,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:28,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:28,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:28,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:00:28,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:28,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 10:00:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:28,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:30,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:30,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:30,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:30,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:30,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking...