/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_8-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:54:17,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:54:17,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:54:17,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:54:17,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:54:17,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:54:17,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:54:17,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:54:17,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:54:17,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:54:17,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:54:17,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:54:17,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:54:17,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:54:17,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:54:17,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:54:17,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:54:17,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:54:17,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:54:17,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:54:17,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:54:17,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:54:17,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:54:17,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:54:17,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:54:17,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:54:17,552 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:54:17,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:54:17,554 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:54:17,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:54:17,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:54:17,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:54:17,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:54:17,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:54:17,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:54:17,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:54:17,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:54:17,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:54:17,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:54:17,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:54:17,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:54:17,565 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 08:54:17,605 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:54:17,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:54:17,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:54:17,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:54:17,608 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:54:17,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:54:17,609 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:54:17,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:54:17,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:54:17,609 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:54:17,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:54:17,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:54:17,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:54:17,611 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:54:17,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:54:17,612 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:54:17,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:54:17,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:54:17,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:54:17,613 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:54:17,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:54:17,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:54:17,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:54:17,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:54:17,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:54:17,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:54:17,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:54:17,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:54:17,615 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:54:17,615 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 08:54:18,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:54:18,099 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:54:18,103 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:54:18,105 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:54:18,105 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:54:18,106 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2020-09-25 08:54:18,193 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4c36b194/79da1c4a47fb4a30a94ef9c1873f23c0/FLAG3774b8c39 [2020-09-25 08:54:18,736 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:54:18,737 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2020-09-25 08:54:18,746 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4c36b194/79da1c4a47fb4a30a94ef9c1873f23c0/FLAG3774b8c39 [2020-09-25 08:54:19,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4c36b194/79da1c4a47fb4a30a94ef9c1873f23c0 [2020-09-25 08:54:19,097 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:54:19,103 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:54:19,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:54:19,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:54:19,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:54:19,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:54:19" (1/1) ... [2020-09-25 08:54:19,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45241865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:19, skipping insertion in model container [2020-09-25 08:54:19,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:54:19" (1/1) ... [2020-09-25 08:54:19,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:54:19,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:54:19,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:54:19,385 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:54:19,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:54:19,417 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:54:19,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:19 WrapperNode [2020-09-25 08:54:19,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:54:19,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:54:19,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:54:19,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:54:19,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:19" (1/1) ... [2020-09-25 08:54:19,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:19" (1/1) ... [2020-09-25 08:54:19,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:19" (1/1) ... [2020-09-25 08:54:19,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:19" (1/1) ... [2020-09-25 08:54:19,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:19" (1/1) ... [2020-09-25 08:54:19,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:19" (1/1) ... [2020-09-25 08:54:19,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:19" (1/1) ... [2020-09-25 08:54:19,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:54:19,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:54:19,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:54:19,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:54:19,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:19" (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 08:54:19,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:54:19,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:54:19,611 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 08:54:19,612 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 08:54:19,612 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:54:19,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:54:19,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:54:19,612 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 08:54:19,613 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 08:54:19,613 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:54:19,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:54:19,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:54:19,830 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:54:19,831 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 08:54:19,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:54:19 BoogieIcfgContainer [2020-09-25 08:54:19,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:54:19,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:54:19,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:54:19,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:54:19,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:54:19" (1/3) ... [2020-09-25 08:54:19,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@737e9338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:54:19, skipping insertion in model container [2020-09-25 08:54:19,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:54:19" (2/3) ... [2020-09-25 08:54:19,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@737e9338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:54:19, skipping insertion in model container [2020-09-25 08:54:19,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:54:19" (3/3) ... [2020-09-25 08:54:19,846 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2020-09-25 08:54:19,858 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:54:19,886 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:54:19,940 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:54:19,988 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:54:19,988 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:54:19,988 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:54:19,988 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:54:19,989 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:54:19,989 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:54:19,989 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:54:19,989 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:54:20,009 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 08:54:20,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 08:54:20,016 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:20,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:54:20,018 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:20,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:20,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 08:54:20,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:20,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703054222] [2020-09-25 08:54:20,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:20,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:20,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:54:20,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:20,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 08:54:20,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:20,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:20,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:54:20,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:54:20,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:54:20,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:54:20,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:20,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:20,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:20,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:20,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:54:20,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:20,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:20,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:20,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:20,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:20,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:20,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:20,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:20,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:20,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:20,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 08:54:20,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:20,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:20,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:54:20,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:20,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:54:20,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:54:20,388 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 08:54:20,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1703054222] [2020-09-25 08:54:20,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:54:20,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:54:20,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22557773] [2020-09-25 08:54:20,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:54:20,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:20,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:54:20,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:54:20,415 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 08:54:20,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:20,545 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 08:54:20,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:54:20,550 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 08:54:20,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:20,574 INFO L225 Difference]: With dead ends: 58 [2020-09-25 08:54:20,574 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 08:54:20,579 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 08:54:20,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 08:54:20,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 08:54:20,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 08:54:20,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 08:54:20,634 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 08:54:20,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:20,634 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 08:54:20,635 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:54:20,635 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 08:54:20,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 08:54:20,637 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:20,637 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 08:54:20,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:54:20,638 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:20,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:20,639 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 08:54:20,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:20,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814558269] [2020-09-25 08:54:20,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:20,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:20,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 08:54:20,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:20,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 08:54:20,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:20,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:20,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:54:20,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:54:20,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:54:20,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:20,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:20,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:20,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:20,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:20,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:20,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:54:20,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:20,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:20,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:20,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:20,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:20,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:20,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:20,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:20,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:20,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:20,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 08:54:20,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:20,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:20,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:54:20,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:20,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:20,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:20,808 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 08:54:20,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814558269] [2020-09-25 08:54:20,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:54:20,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:54:20,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678057516] [2020-09-25 08:54:20,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:54:20,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:20,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:54:20,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:54:20,813 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 08:54:20,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:20,884 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 08:54:20,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:54:20,884 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 08:54:20,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:20,886 INFO L225 Difference]: With dead ends: 50 [2020-09-25 08:54:20,887 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 08:54:20,888 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 08:54:20,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 08:54:20,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 08:54:20,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 08:54:20,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 08:54:20,898 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 08:54:20,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:20,899 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 08:54:20,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:54:20,899 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 08:54:20,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 08:54:20,901 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:20,901 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 08:54:20,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:54:20,902 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:20,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:20,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 08:54:20,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:20,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1311736820] [2020-09-25 08:54:20,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:20,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:21,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:21,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:21,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 08:54:21,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:54:21,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 609 [2020-09-25 08:54:21,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:21,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:21,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:21,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:54:21,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:54:21,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:54:21,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:21,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:21,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:21,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:21,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:21,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:21,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:54:21,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:21,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:21,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:21,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:21,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:21,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:21,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:21,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:21,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:21,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:21,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:21,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:54:21,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:54:21,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-09-25 08:54:21,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:21,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:21,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:21,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 08:54:21,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:21,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:21,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:21,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:21,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:21,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:21,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:54:21,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:21,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:21,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:21,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:21,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:54:21,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:21,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:54:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:21,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:21,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:21,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:21,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:21,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:54:21,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:21,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:21,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:21,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:21,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:21,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:21,904 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 08:54:21,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1311736820] [2020-09-25 08:54:21,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:54:21,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:54:21,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647952306] [2020-09-25 08:54:21,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:54:21,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:21,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:54:21,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:54:21,907 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-25 08:54:22,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:22,052 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2020-09-25 08:54:22,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:54:22,053 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 08:54:22,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:22,055 INFO L225 Difference]: With dead ends: 58 [2020-09-25 08:54:22,056 INFO L226 Difference]: Without dead ends: 52 [2020-09-25 08:54:22,056 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 08:54:22,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-25 08:54:22,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-09-25 08:54:22,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 08:54:22,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 08:54:22,068 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 33 [2020-09-25 08:54:22,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:22,069 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 08:54:22,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:54:22,069 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 08:54:22,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 08:54:22,072 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:22,072 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 08:54:22,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:54:22,073 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:22,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:22,073 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 08:54:22,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:22,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024656638] [2020-09-25 08:54:22,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:22,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:22,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:22,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:22,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:22,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:22,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 08:54:22,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:54:22,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 561 [2020-09-25 08:54:22,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:22,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:22,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:22,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:54:22,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 08:54:22,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:22,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:22,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:22,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:22,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:22,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:22,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:54:22,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:22,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:22,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:22,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:22,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:22,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:22,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:22,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:22,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:22,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:22,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:23,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:23,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 08:54:23,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:54:23,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 436 [2020-09-25 08:54:23,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:23,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:23,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:23,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:23,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 08:54:23,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:23,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:23,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:23,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:23,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:23,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:23,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:23,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 08:54:23,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:23,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:23,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:23,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:23,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:54:23,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:23,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:54:23,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:23,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:23,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:23,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:23,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:23,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:54:23,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:23,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:23,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:23,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:23,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:23,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:54:23,228 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 08:54:23,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024656638] [2020-09-25 08:54:23,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:54:23,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 08:54:23,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264255127] [2020-09-25 08:54:23,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:54:23,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:23,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:54:23,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:54:23,232 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2020-09-25 08:54:23,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:23,385 INFO L93 Difference]: Finished difference Result 110 states and 146 transitions. [2020-09-25 08:54:23,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:54:23,385 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 08:54:23,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:23,388 INFO L225 Difference]: With dead ends: 110 [2020-09-25 08:54:23,388 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 08:54:23,390 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 08:54:23,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 08:54:23,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-25 08:54:23,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 08:54:23,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2020-09-25 08:54:23,401 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 35 [2020-09-25 08:54:23,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:23,402 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2020-09-25 08:54:23,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:54:23,402 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2020-09-25 08:54:23,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 08:54:23,405 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:23,406 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 08:54:23,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:54:23,406 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:23,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:23,407 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-25 08:54:23,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:23,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1014308934] [2020-09-25 08:54:23,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:23,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:23,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:23,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:23,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:23,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:23,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:23,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:28,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:28,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 08:54:28,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 08:54:28,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:54:28,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:28,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:28,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:28,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:54:28,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 08:54:28,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:28,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:28,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:28,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:28,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:28,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:28,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:54:28,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:28,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:28,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:28,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:28,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:28,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:28,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:28,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:28,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:28,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:28,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:28,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:29,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:30,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:31,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:31,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 08:54:31,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 08:54:31,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3380 [2020-09-25 08:54:31,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:31,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:31,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:54:31,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:31,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 08:54:31,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:54:31,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:31,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:31,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:31,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:31,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:54:31,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:54:31,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 08:54:31,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:31,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:31,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:54:31,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:31,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 08:54:31,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:54:32,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:32,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:32,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:32,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:32,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:32,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:32,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:54:32,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:32,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:32,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:32,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:32,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:32,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:54:32,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:54:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:32,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:32,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:32,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:32,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:32,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:54:32,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:32,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:32,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:32,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:32,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:54:32,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:54:32,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 08:54:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:32,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:32,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:32,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:32,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:32,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:54:32,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:32,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:32,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:32,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:32,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:32,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:54:32,093 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 08:54:32,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1014308934] [2020-09-25 08:54:32,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:54:32,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 08:54:32,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317262524] [2020-09-25 08:54:32,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:54:32,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:32,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:54:32,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:54:32,097 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand 9 states. [2020-09-25 08:54:32,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:32,308 INFO L93 Difference]: Finished difference Result 88 states and 121 transitions. [2020-09-25 08:54:32,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 08:54:32,308 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-09-25 08:54:32,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:32,312 INFO L225 Difference]: With dead ends: 88 [2020-09-25 08:54:32,313 INFO L226 Difference]: Without dead ends: 82 [2020-09-25 08:54:32,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 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 08:54:32,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-25 08:54:32,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 68. [2020-09-25 08:54:32,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-25 08:54:32,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 92 transitions. [2020-09-25 08:54:32,343 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 92 transitions. Word has length 51 [2020-09-25 08:54:32,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:32,346 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 92 transitions. [2020-09-25 08:54:32,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:54:32,346 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 92 transitions. [2020-09-25 08:54:32,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 08:54:32,353 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:32,356 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1] [2020-09-25 08:54:32,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:54:32,356 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:32,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:32,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1703786405, now seen corresponding path program 1 times [2020-09-25 08:54:32,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:32,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2127368294] [2020-09-25 08:54:32,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:32,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:32,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:32,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:33,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:33,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 08:54:33,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:54:33,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1564 [2020-09-25 08:54:33,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:33,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:33,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:33,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:54:33,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 08:54:33,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:33,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:33,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:33,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:33,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:33,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:33,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:33,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:54:33,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:33,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:33,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:33,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:33,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:33,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:33,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:33,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:33,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:34,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:35,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:35,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 08:54:35,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:54:35,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1618 [2020-09-25 08:54:35,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:35,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:35,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:54:35,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:35,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 08:54:35,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:35,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:35,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:35,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:35,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:35,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:35,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 08:54:35,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:54:35,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-25 08:54:35,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:35,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:35,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:54:35,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:35,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 08:54:35,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:35,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:35,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:35,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:35,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:35,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:35,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:54:35,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:35,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:35,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:35,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:35,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:35,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:35,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:54:35,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:35,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:35,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:35,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:35,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:35,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:54:35,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:35,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:35,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:35,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:35,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:35,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:35,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 08:54:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:35,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:35,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:35,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:35,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:35,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:54:35,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:35,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:35,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:35,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:35,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:35,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:35,985 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 08:54:35,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2127368294] [2020-09-25 08:54:35,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:54:35,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 08:54:35,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345197470] [2020-09-25 08:54:35,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:54:35,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:35,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:54:35,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:54:35,990 INFO L87 Difference]: Start difference. First operand 68 states and 92 transitions. Second operand 9 states. [2020-09-25 08:54:36,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:36,194 INFO L93 Difference]: Finished difference Result 96 states and 134 transitions. [2020-09-25 08:54:36,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 08:54:36,195 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2020-09-25 08:54:36,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:36,197 INFO L225 Difference]: With dead ends: 96 [2020-09-25 08:54:36,199 INFO L226 Difference]: Without dead ends: 90 [2020-09-25 08:54:36,200 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 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 08:54:36,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-25 08:54:36,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 82. [2020-09-25 08:54:36,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-25 08:54:36,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 112 transitions. [2020-09-25 08:54:36,230 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 112 transitions. Word has length 52 [2020-09-25 08:54:36,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:36,233 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 112 transitions. [2020-09-25 08:54:36,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:54:36,233 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 112 transitions. [2020-09-25 08:54:36,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 08:54:36,235 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:36,235 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 08:54:36,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 08:54:36,236 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:36,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:36,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1208671938, now seen corresponding path program 1 times [2020-09-25 08:54:36,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:36,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1172601278] [2020-09-25 08:54:36,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:36,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:36,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:36,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:36,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:36,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:36,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:36,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:36,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:37,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:38,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:38,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:38,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:39,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:39,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:39,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:39,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:41,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:41,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 08:54:41,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 08:54:41,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 08:54:41,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:41,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:41,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:54:41,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:54:41,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 08:54:41,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:41,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:41,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:41,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:41,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:41,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:41,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:54:41,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:41,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:41,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:41,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:41,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:41,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:41,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:41,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:41,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:41,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:41,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:41,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:42,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:42,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:42,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:42,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:43,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:43,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:46,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:46,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 08:54:46,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 08:54:46,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:54:46,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:46,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:46,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 08:54:46,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 08:54:46,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 08:54:46,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:46,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:46,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:46,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:46,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:46,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:46,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:46,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:46,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 08:54:46,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:54:46,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 08:54:46,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:46,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:46,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:46,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:46,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 08:54:46,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:46,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:46,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:46,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:46,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:46,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:46,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:54:46,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:46,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:46,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:46,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:46,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:46,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:46,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:54:46,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:46,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:46,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:46,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:46,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:46,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:54:46,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:46,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:46,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:46,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:46,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:54:46,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:46,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 08:54:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:46,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:46,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:46,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:46,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:46,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:46,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 08:54:46,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:54:46,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-09-25 08:54:46,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:46,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:46,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:46,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:46,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 08:54:46,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:46,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:46,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:46,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:46,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:46,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:46,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:54:46,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:46,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:46,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:46,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:46,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:46,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:46,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:54:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:46,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:46,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:47,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:47,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:47,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:54:47,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 08:54:47,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:47,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:47,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:47,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:47,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:54:47,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:47,042 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 33 proven. 15 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-25 08:54:47,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1172601278] [2020-09-25 08:54:47,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:54:47,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 08:54:47,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105202356] [2020-09-25 08:54:47,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 08:54:47,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:47,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 08:54:47,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-25 08:54:47,044 INFO L87 Difference]: Start difference. First operand 82 states and 112 transitions. Second operand 12 states. [2020-09-25 08:54:47,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:47,388 INFO L93 Difference]: Finished difference Result 191 states and 305 transitions. [2020-09-25 08:54:47,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 08:54:47,392 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 71 [2020-09-25 08:54:47,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:47,394 INFO L225 Difference]: With dead ends: 191 [2020-09-25 08:54:47,394 INFO L226 Difference]: Without dead ends: 109 [2020-09-25 08:54:47,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2020-09-25 08:54:47,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-25 08:54:47,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 101. [2020-09-25 08:54:47,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-25 08:54:47,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 139 transitions. [2020-09-25 08:54:47,412 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 139 transitions. Word has length 71 [2020-09-25 08:54:47,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:47,412 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 139 transitions. [2020-09-25 08:54:47,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 08:54:47,412 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 139 transitions. [2020-09-25 08:54:47,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-09-25 08:54:47,414 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:47,415 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:54:47,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 08:54:47,415 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:47,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:47,416 INFO L82 PathProgramCache]: Analyzing trace with hash -488930431, now seen corresponding path program 1 times [2020-09-25 08:54:47,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:47,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257516315] [2020-09-25 08:54:47,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:47,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:47,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:47,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:47,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:47,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:47,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:47,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:47,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:47,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:47,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:48,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:49,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:50,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:50,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:50,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:50,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:50,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:51,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:51,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:52,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:52,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 08:54:52,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-25 08:54:52,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 08:54:52,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:52,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:52,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:54:52,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 08:54:52,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 08:54:52,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:52,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:52,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:52,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:52,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:52,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:52,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:52,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:54:52,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:52,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:52,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:52,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:52,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:52,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:52,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:52,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:52,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:52,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:52,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:52,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:52,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:52,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:52,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:52,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:52,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:53,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:53,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:53,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:56,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:57,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:57,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:57,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:57,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:57,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-09-25 08:54:57,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-25 08:54:57,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 08:54:57,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:57,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:57,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 08:54:57,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 08:54:57,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 08:54:57,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:57,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:57,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:57,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:57,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:57,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:57,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:57,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:57,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:57,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:58,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:58,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:58,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:58,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:02,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:02,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:02,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 08:55:02,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 08:55:02,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 08:55:02,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:02,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:02,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 08:55:02,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 08:55:02,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 08:55:02,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:02,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:55:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:02,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:02,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:02,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:02,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:02,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:55:02,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:55:02,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 08:55:02,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:02,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:02,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:55:02,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:02,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 08:55:02,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:55:02,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:55:02,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:02,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:02,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:02,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:55:02,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:02,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:55:02,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:02,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:02,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:55:02,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:02,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:55:02,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:02,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:55:02,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:02,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:02,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:02,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:55:02,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:02,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:55:02,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:02,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:02,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:55:02,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:02,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:55:02,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:55:02,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 08:55:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:02,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:02,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:02,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:02,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:02,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:03,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:03,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:03,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:03,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:04,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:06,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:06,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 08:55:06,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 08:55:06,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4166 [2020-09-25 08:55:06,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:06,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:06,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:55:06,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:55:06,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 08:55:06,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:55:06,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:55:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:06,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:06,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:06,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:07,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:07,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:07,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:07,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 08:55:07,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:55:07,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 334 [2020-09-25 08:55:07,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:07,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:07,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:55:07,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:07,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 08:55:07,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:55:07,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:55:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:07,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:07,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:07,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:55:07,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:07,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:55:07,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:07,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:07,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:55:07,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:07,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:55:07,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:55:07,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:55:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:07,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:07,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:07,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:07,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:55:07,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:55:07,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 08:55:07,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:07,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:07,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:55:07,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:07,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:55:07,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:55:07,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 08:55:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:07,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:07,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:07,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:55:07,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:07,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:55:07,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:07,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:07,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:55:07,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:07,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:55:07,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:55:07,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-25 08:55:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:07,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:07,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:07,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:07,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:07,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:08,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:08,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 08:55:08,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:55:08,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 941 [2020-09-25 08:55:08,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:08,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:08,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:55:08,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-09-25 08:55:08,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:55:08,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:55:08,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:55:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:08,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:08,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:08,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:08,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:55:08,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:55:08,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 08:55:08,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:08,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:08,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:55:08,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:08,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:55:08,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:55:08,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:55:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:08,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:08,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:08,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:55:08,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:08,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:55:08,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:08,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:08,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:55:08,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:08,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:55:08,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:55:08,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:55:08,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:08,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:08,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:08,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:55:08,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:08,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:55:08,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:08,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:08,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:55:08,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:08,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:55:08,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:55:08,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 08:55:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:08,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:08,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:08,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:55:08,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:08,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:55:08,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:08,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:08,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:55:08,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:08,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:55:08,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:55:08,371 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 62 proven. 116 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-09-25 08:55:08,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [257516315] [2020-09-25 08:55:08,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:55:08,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 08:55:08,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513843610] [2020-09-25 08:55:08,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 08:55:08,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:55:08,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 08:55:08,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-09-25 08:55:08,373 INFO L87 Difference]: Start difference. First operand 101 states and 139 transitions. Second operand 12 states. [2020-09-25 08:55:08,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:55:08,946 INFO L93 Difference]: Finished difference Result 244 states and 384 transitions. [2020-09-25 08:55:08,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 08:55:08,950 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 137 [2020-09-25 08:55:08,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:55:08,953 INFO L225 Difference]: With dead ends: 244 [2020-09-25 08:55:08,953 INFO L226 Difference]: Without dead ends: 144 [2020-09-25 08:55:08,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2020-09-25 08:55:08,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-09-25 08:55:08,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 131. [2020-09-25 08:55:08,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-09-25 08:55:08,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 187 transitions. [2020-09-25 08:55:08,973 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 187 transitions. Word has length 137 [2020-09-25 08:55:08,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:55:08,973 INFO L479 AbstractCegarLoop]: Abstraction has 131 states and 187 transitions. [2020-09-25 08:55:08,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 08:55:08,974 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 187 transitions. [2020-09-25 08:55:08,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-09-25 08:55:08,976 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:55:08,976 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1] [2020-09-25 08:55:08,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 08:55:08,977 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:55:08,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:55:08,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1238569603, now seen corresponding path program 1 times [2020-09-25 08:55:08,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:55:08,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732792813] [2020-09-25 08:55:08,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:55:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:09,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:09,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:09,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:09,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:09,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:09,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:09,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:09,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:09,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:09,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:09,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:10,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:10,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:10,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:10,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:10,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:11,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:13,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:13,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:13,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:13,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:13,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-25 08:55:13,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-09-25 08:55:13,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 08:55:13,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:13,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:13,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 08:55:13,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 08:55:13,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 08:55:13,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:55:14,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:55:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:14,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:14,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:55:14,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:55:14,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:55:14,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:55:14,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:55:14,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:55:14,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:55:14,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:55:14,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:55:14,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:55:14,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:55:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:55:14,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:14,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:14,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:14,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:14,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:14,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:14,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:14,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:14,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:14,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:15,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:15,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:15,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:55:15,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking...