/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --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_2calls_25-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:54:12,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:54:12,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:54:12,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:54:12,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:54:12,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:54:12,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:54:12,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:54:12,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:54:12,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:54:12,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:54:12,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:54:12,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:54:12,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:54:12,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:54:12,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:54:12,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:54:12,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:54:12,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:54:12,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:54:12,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:54:12,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:54:12,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:54:12,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:54:12,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:54:12,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:54:12,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:54:12,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:54:12,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:54:12,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:54:12,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:54:12,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:54:12,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:54:12,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:54:12,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:54:12,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:54:12,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:54:12,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:54:12,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:54:12,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:54:12,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:54:12,153 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 08:54:12,205 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:54:12,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:54:12,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:54:12,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:54:12,208 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:54:12,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:54:12,208 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:54:12,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:54:12,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:54:12,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:54:12,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:54:12,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:54:12,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:54:12,211 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:54:12,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:54:12,211 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:54:12,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:54:12,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:54:12,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:54:12,213 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:54:12,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:54:12,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:54:12,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:54:12,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:54:12,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:54:12,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:54:12,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:54:12,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:54:12,215 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:54:12,215 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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:54:12,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:54:12,713 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:54:12,720 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:54:12,722 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:54:12,723 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:54:12,724 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_25-2.c [2020-09-25 08:54:12,807 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/815955c0a/f3fc2e9207b24a10b9dc2a155107861b/FLAG7f72a24fe [2020-09-25 08:54:13,302 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:54:13,303 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_25-2.c [2020-09-25 08:54:13,312 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/815955c0a/f3fc2e9207b24a10b9dc2a155107861b/FLAG7f72a24fe [2020-09-25 08:54:13,670 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/815955c0a/f3fc2e9207b24a10b9dc2a155107861b [2020-09-25 08:54:13,685 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:54:13,691 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:54:13,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:54:13,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:54:13,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:54:13,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:54:13" (1/1) ... [2020-09-25 08:54:13,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26f88baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:13, skipping insertion in model container [2020-09-25 08:54:13,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:54:13" (1/1) ... [2020-09-25 08:54:13,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:54:13,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:54:14,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:54:14,031 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:54:14,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:54:14,063 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:54:14,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:14 WrapperNode [2020-09-25 08:54:14,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:54:14,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:54:14,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:54:14,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:54:14,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:14" (1/1) ... [2020-09-25 08:54:14,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:14" (1/1) ... [2020-09-25 08:54:14,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:14" (1/1) ... [2020-09-25 08:54:14,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:14" (1/1) ... [2020-09-25 08:54:14,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:14" (1/1) ... [2020-09-25 08:54:14,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:14" (1/1) ... [2020-09-25 08:54:14,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:14" (1/1) ... [2020-09-25 08:54:14,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:54:14,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:54:14,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:54:14,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:54:14,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:14" (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 08:54:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:54:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:54:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 08:54:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 08:54:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:54:14,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:54:14,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:54:14,263 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 08:54:14,264 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 08:54:14,264 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:54:14,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:54:14,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:54:14,509 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:54:14,509 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 08:54:14,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:54:14 BoogieIcfgContainer [2020-09-25 08:54:14,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:54:14,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:54:14,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:54:14,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:54:14,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:54:13" (1/3) ... [2020-09-25 08:54:14,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c96f36e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:54:14, skipping insertion in model container [2020-09-25 08:54:14,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:14" (2/3) ... [2020-09-25 08:54:14,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c96f36e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:54:14, skipping insertion in model container [2020-09-25 08:54:14,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:54:14" (3/3) ... [2020-09-25 08:54:14,548 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_25-2.c [2020-09-25 08:54:14,570 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:54:14,580 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:54:14,601 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:54:14,630 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:54:14,630 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:54:14,630 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:54:14,630 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:54:14,630 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:54:14,631 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:54:14,631 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:54:14,631 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:54:14,651 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 08:54:14,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 08:54:14,658 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:14,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:54:14,659 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:14,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:14,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 08:54:14,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:14,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932208191] [2020-09-25 08:54:14,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:14,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:14,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:14,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:54:14,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:14,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 08:54:14,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:14,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:14,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:54:14,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:54:14,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:54:14,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:54:14,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:14,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:14,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:14,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:14,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:14,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:54:14,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:14,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:14,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:14,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:14,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:14,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 08:54:14,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:14,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:14,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:14,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:14,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:14,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 08:54:14,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:14,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:14,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:54:14,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:14,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:54:14,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:15,011 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 08:54:15,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932208191] [2020-09-25 08:54:15,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:54:15,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:54:15,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136260031] [2020-09-25 08:54:15,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:54:15,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:15,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:54:15,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:54:15,040 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 08:54:15,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:15,167 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 08:54:15,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:54:15,170 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 08:54:15,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:15,184 INFO L225 Difference]: With dead ends: 58 [2020-09-25 08:54:15,184 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 08:54:15,189 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 08:54:15,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 08:54:15,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 08:54:15,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 08:54:15,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 08:54:15,247 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 08:54:15,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:15,248 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 08:54:15,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:54:15,248 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 08:54:15,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 08:54:15,251 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:15,251 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 08:54:15,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:54:15,252 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:15,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:15,252 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 08:54:15,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:15,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [905521492] [2020-09-25 08:54:15,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:15,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:15,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:15,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 08:54:15,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:15,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 08:54:15,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:15,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:15,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:54:15,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:54:15,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:54:15,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:15,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:15,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:15,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:15,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:15,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:15,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:54:15,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:15,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:15,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:15,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:15,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:15,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:15,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:15,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:15,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:15,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:15,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:15,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 08:54:15,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:15,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:15,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:54:15,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:15,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:15,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:15,465 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 08:54:15,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [905521492] [2020-09-25 08:54:15,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:54:15,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:54:15,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539859680] [2020-09-25 08:54:15,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:54:15,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:15,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:54:15,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:54:15,470 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 08:54:15,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:15,577 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 08:54:15,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:54:15,579 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 08:54:15,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:15,583 INFO L225 Difference]: With dead ends: 50 [2020-09-25 08:54:15,583 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 08:54:15,585 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 08:54:15,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 08:54:15,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 08:54:15,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 08:54:15,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 08:54:15,605 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 08:54:15,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:15,605 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 08:54:15,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:54:15,606 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 08:54:15,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 08:54:15,609 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:15,609 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:54:15,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:54:15,610 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:15,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:15,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 08:54:15,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:15,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [89647888] [2020-09-25 08:54:15,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:15,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:15,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:15,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:16,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:16,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 08:54:16,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:54:16,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 545 [2020-09-25 08:54:16,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:16,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:16,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:16,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:54:16,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:54:16,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:54:16,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:16,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:16,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:16,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:16,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:16,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:54:16,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:16,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:16,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:16,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:16,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:16,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:16,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:16,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:16,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:16,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:16,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:16,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:54:16,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:54:16,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-09-25 08:54:16,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:16,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:16,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:16,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:16,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 08:54:16,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:16,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:16,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:16,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:16,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:16,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:16,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:54:16,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:16,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:16,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:16,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:16,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:54:16,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:16,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:54:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:16,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:16,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:16,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:16,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:16,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:54:16,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:16,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:16,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:16,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:16,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:16,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:16,516 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 08:54:16,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [89647888] [2020-09-25 08:54:16,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:54:16,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:54:16,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967274364] [2020-09-25 08:54:16,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:54:16,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:16,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:54:16,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:54:16,520 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-25 08:54:16,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:16,641 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2020-09-25 08:54:16,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:54:16,642 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 08:54:16,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:16,644 INFO L225 Difference]: With dead ends: 58 [2020-09-25 08:54:16,644 INFO L226 Difference]: Without dead ends: 52 [2020-09-25 08:54:16,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:54:16,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-25 08:54:16,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-09-25 08:54:16,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 08:54:16,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 08:54:16,657 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 33 [2020-09-25 08:54:16,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:16,658 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 08:54:16,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:54:16,658 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 08:54:16,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 08:54:16,660 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:16,660 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:54:16,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:54:16,661 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:16,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:16,661 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 08:54:16,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:16,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [359290847] [2020-09-25 08:54:16,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:16,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:16,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:16,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:16,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:17,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:17,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 08:54:17,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:54:17,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 591 [2020-09-25 08:54:17,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:17,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:17,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:17,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:54:17,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 08:54:17,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:17,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:17,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:17,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:17,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:17,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:17,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:54:17,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:17,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:17,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:17,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:17,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:17,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:17,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:17,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:17,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:17,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:17,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:17,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:17,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 08:54:17,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:54:17,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438 [2020-09-25 08:54:17,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:17,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:17,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:17,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:17,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 08:54:17,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:17,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:17,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:17,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:17,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:17,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:17,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 08:54:17,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:17,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:17,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:17,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:17,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:54:17,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:17,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:54:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:17,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:17,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:17,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:17,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:17,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:54:17,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:17,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:17,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:17,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:17,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:17,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:17,829 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 08:54:17,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [359290847] [2020-09-25 08:54:17,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:54:17,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 08:54:17,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571501301] [2020-09-25 08:54:17,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:54:17,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:17,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:54:17,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:54:17,832 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2020-09-25 08:54:17,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:17,952 INFO L93 Difference]: Finished difference Result 110 states and 146 transitions. [2020-09-25 08:54:17,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:54:17,953 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 08:54:17,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:17,955 INFO L225 Difference]: With dead ends: 110 [2020-09-25 08:54:17,956 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 08:54:17,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:54:17,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 08:54:17,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-25 08:54:17,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 08:54:17,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2020-09-25 08:54:17,969 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 35 [2020-09-25 08:54:17,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:17,969 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2020-09-25 08:54:17,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:54:17,970 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2020-09-25 08:54:17,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 08:54:17,972 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:17,973 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:54:17,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:54:17,973 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:17,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:17,974 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-25 08:54:17,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:17,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143814768] [2020-09-25 08:54:17,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:17,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:18,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:18,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:18,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:18,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:18,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:18,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:22,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:22,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 08:54:22,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 08:54:22,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 08:54:22,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:22,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:22,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:22,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:54:22,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 08:54:22,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:23,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:23,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:23,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:23,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:23,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:23,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:54:23,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:23,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:23,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:23,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:23,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:23,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:23,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:23,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:23,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:23,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:23,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:23,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:23,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:23,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:26,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:26,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 08:54:26,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 08:54:26,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3499 [2020-09-25 08:54:26,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:26,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:26,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:54:26,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:26,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 08:54:26,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:26,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:26,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:26,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:26,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:26,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:26,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:54:26,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:54:26,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-09-25 08:54:26,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:26,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:26,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:54:26,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:26,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 08:54:26,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:26,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:26,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:26,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:26,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:26,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:26,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:26,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:54:26,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:26,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:26,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:26,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:26,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:26,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:26,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:54:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:26,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:26,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:26,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:26,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:26,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:54:26,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:26,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:26,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:26,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:26,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:54:26,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:54:26,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 08:54:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:26,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:26,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:26,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:26,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:26,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:54:26,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:26,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:26,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:26,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:26,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:26,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:26,955 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 08:54:26,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143814768] [2020-09-25 08:54:26,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:54:26,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 08:54:26,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296595144] [2020-09-25 08:54:26,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:54:26,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:26,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:54:26,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:54:26,959 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand 9 states. [2020-09-25 08:54:27,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:27,193 INFO L93 Difference]: Finished difference Result 78 states and 105 transitions. [2020-09-25 08:54:27,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 08:54:27,193 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-09-25 08:54:27,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:27,196 INFO L225 Difference]: With dead ends: 78 [2020-09-25 08:54:27,196 INFO L226 Difference]: Without dead ends: 72 [2020-09-25 08:54:27,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-09-25 08:54:27,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-25 08:54:27,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 62. [2020-09-25 08:54:27,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 08:54:27,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 80 transitions. [2020-09-25 08:54:27,212 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 80 transitions. Word has length 51 [2020-09-25 08:54:27,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:27,212 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 80 transitions. [2020-09-25 08:54:27,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:54:27,213 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions. [2020-09-25 08:54:27,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 08:54:27,215 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:27,216 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:54:27,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:54:27,216 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:27,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:27,216 INFO L82 PathProgramCache]: Analyzing trace with hash -387134248, now seen corresponding path program 1 times [2020-09-25 08:54:27,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:27,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1891794676] [2020-09-25 08:54:27,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:27,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:27,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:27,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:27,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:27,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:27,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:28,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:28,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:29,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:30,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:32,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:32,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:32,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:32,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 08:54:32,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 08:54:32,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 08:54:32,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:32,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:32,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:54:32,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:54:32,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 08:54:32,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:32,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:32,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:32,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:32,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:32,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:32,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:54:32,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:32,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:32,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:32,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:32,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:32,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:32,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:32,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:32,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:32,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:32,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:32,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:32,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:32,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:33,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:35,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:35,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:37,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:37,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:37,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:37,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 08:54:37,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 08:54:37,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 08:54:37,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:37,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:37,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:54:37,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:37,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 08:54:37,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:37,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:37,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:37,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:37,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:37,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:37,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 08:54:37,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:54:37,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-25 08:54:37,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:37,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:37,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:54:37,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:37,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 08:54:37,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:37,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:37,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:37,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:37,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:37,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:37,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:54:37,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:37,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:37,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:37,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:37,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:37,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:37,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:54:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:37,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:37,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:37,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:37,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:37,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:54:37,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:37,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:37,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:37,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:37,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:37,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:37,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 08:54:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:37,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:37,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:37,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 08:54:37,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:37,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 08:54:37,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:37,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:37,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:37,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:37,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 08:54:37,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:37,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:37,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:37,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:37,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:37,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:37,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:54:37,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:37,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:37,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:37,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:37,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:37,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:37,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:54:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:37,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:37,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:37,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:37,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:37,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:54:37,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:37,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:37,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:37,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:37,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:37,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:37,643 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 9 proven. 26 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-25 08:54:37,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1891794676] [2020-09-25 08:54:37,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:54:37,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 08:54:37,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797624284] [2020-09-25 08:54:37,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:54:37,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:37,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:54:37,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:54:37,646 INFO L87 Difference]: Start difference. First operand 62 states and 80 transitions. Second operand 9 states. [2020-09-25 08:54:37,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:37,821 INFO L93 Difference]: Finished difference Result 94 states and 132 transitions. [2020-09-25 08:54:37,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 08:54:37,822 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-09-25 08:54:37,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:37,825 INFO L225 Difference]: With dead ends: 94 [2020-09-25 08:54:37,825 INFO L226 Difference]: Without dead ends: 88 [2020-09-25 08:54:37,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-25 08:54:37,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-25 08:54:37,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 74. [2020-09-25 08:54:37,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-25 08:54:37,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 101 transitions. [2020-09-25 08:54:37,841 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 101 transitions. Word has length 69 [2020-09-25 08:54:37,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:37,841 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 101 transitions. [2020-09-25 08:54:37,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:54:37,842 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 101 transitions. [2020-09-25 08:54:37,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 08:54:37,844 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:37,844 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:54:37,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 08:54:37,844 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:37,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:37,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1208671938, now seen corresponding path program 1 times [2020-09-25 08:54:37,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:37,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1893883404] [2020-09-25 08:54:37,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:37,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:37,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:37,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:37,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:38,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:38,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:38,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:38,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:40,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:40,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:40,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:40,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:40,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:40,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:40,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:42,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:42,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 08:54:42,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 08:54:42,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:54:42,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:42,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:42,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:54:42,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:54:42,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 08:54:42,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:42,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:42,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:42,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:42,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:42,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:42,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:42,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:54:42,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:42,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:42,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:42,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:42,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:42,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:42,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:42,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:42,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:42,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:42,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:43,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:43,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:43,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:43,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:43,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:44,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:44,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:47,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:47,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 08:54:47,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 08:54:47,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 08:54:47,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:47,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:47,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 08:54:47,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 08:54:47,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 08:54:47,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:47,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:47,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:47,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:47,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:47,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:48,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:48,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 08:54:48,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:54:48,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-09-25 08:54:48,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:48,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:48,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:48,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:48,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 08:54:48,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:48,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:48,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:48,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:48,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:48,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:48,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:54:48,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:48,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:48,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:48,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:48,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:48,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:48,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:54:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:48,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:48,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:48,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:48,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:48,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 08:54:48,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:48,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:48,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:48,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:48,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:54:48,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:48,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 08:54:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:48,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:48,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:48,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:48,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:48,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:48,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 08:54:48,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:54:48,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 08:54:48,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:48,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:48,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:48,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:48,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 08:54:48,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:48,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:48,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:48,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:48,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:48,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:48,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:54:48,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:48,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:48,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:48,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:48,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:48,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:48,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:54:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:48,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:48,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:48,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:48,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:48,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:54:48,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 08:54:48,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:48,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:48,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:48,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:48,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:54:48,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:48,529 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 27 proven. 21 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-25 08:54:48,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1893883404] [2020-09-25 08:54:48,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:54:48,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 08:54:48,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139740423] [2020-09-25 08:54:48,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 08:54:48,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:48,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 08:54:48,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-09-25 08:54:48,533 INFO L87 Difference]: Start difference. First operand 74 states and 101 transitions. Second operand 12 states. [2020-09-25 08:54:49,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:49,032 INFO L93 Difference]: Finished difference Result 187 states and 296 transitions. [2020-09-25 08:54:49,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 08:54:49,033 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 71 [2020-09-25 08:54:49,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:49,036 INFO L225 Difference]: With dead ends: 187 [2020-09-25 08:54:49,036 INFO L226 Difference]: Without dead ends: 113 [2020-09-25 08:54:49,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2020-09-25 08:54:49,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-09-25 08:54:49,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 101. [2020-09-25 08:54:49,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-25 08:54:49,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 141 transitions. [2020-09-25 08:54:49,055 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 141 transitions. Word has length 71 [2020-09-25 08:54:49,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:49,056 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 141 transitions. [2020-09-25 08:54:49,056 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 08:54:49,056 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 141 transitions. [2020-09-25 08:54:49,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-09-25 08:54:49,058 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:49,058 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:54:49,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 08:54:49,059 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:49,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:49,059 INFO L82 PathProgramCache]: Analyzing trace with hash -851980842, now seen corresponding path program 1 times [2020-09-25 08:54:49,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:49,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1088932946] [2020-09-25 08:54:49,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:49,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:49,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:49,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:49,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:49,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:49,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:49,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:49,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:49,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:50,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:50,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:50,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:50,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:50,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:50,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:54,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:54,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-25 08:54:54,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 08:54:54,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 08:54:54,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:54,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:54,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:54:54,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 08:54:54,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 08:54:54,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:54,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:54,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:54,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:54,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:54,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:54,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:54:54,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:54,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:54,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:54,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:54,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:54,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:54,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:54,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:54,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:54,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:54,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:54,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:54,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:54,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:54,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:54,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:55,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:57,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:58,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:58,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:58,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:58,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:59,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:59,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-09-25 08:54:59,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 08:54:59,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 08:54:59,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:59,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:59,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 08:54:59,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 08:54:59,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 08:54:59,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:59,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:59,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:59,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:59,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:59,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:59,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:59,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:59,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:59,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:00,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:00,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:00,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:00,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:00,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:00,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:02,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:02,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:02,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:03,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:03,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:04,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 08:55:04,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-09-25 08:55:04,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 08:55:04,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:04,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:04,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 08:55:04,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 08:55:04,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 08:55:04,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:04,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:55:04,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:04,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:04,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:55:04,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:55:04,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 08:55:04,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:04,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:04,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:55:04,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:04,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 08:55:04,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:55:04,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:55:04,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:04,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:04,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:55:04,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:04,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:55:04,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:04,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:04,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:55:04,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:04,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:55:04,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:55:04,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:55:04,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:04,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:04,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:55:04,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:04,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:55:04,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:04,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:04,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:55:04,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:04,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:55:04,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:55:04,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 08:55:04,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:04,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:05,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:05,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:05,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:05,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:08,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:08,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 08:55:08,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 08:55:08,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4444 [2020-09-25 08:55:08,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:08,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:08,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:55:08,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:55:08,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 08:55:08,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:08,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:55:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:08,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:08,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:08,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:08,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:08,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking...