/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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 [2020-09-24 19:19:56,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:19:56,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:19:56,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:19:56,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:19:56,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:19:56,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:19:56,583 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:19:56,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:19:56,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:19:56,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:19:56,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:19:56,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:19:56,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:19:56,591 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:19:56,592 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:19:56,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:19:56,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:19:56,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:19:56,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:19:56,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:19:56,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:19:56,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:19:56,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:19:56,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:19:56,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:19:56,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:19:56,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:19:56,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:19:56,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:19:56,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:19:56,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:19:56,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:19:56,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:19:56,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:19:56,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:19:56,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:19:56,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:19:56,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:19:56,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:19:56,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:19:56,618 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:19:56,643 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:19:56,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:19:56,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:19:56,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:19:56,645 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:19:56,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:19:56,645 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:19:56,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:19:56,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:19:56,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:19:56,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:19:56,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:19:56,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:19:56,647 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:19:56,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:19:56,647 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:19:56,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:19:56,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:19:56,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:19:56,648 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:19:56,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:19:56,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:19:56,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:19:56,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:19:56,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:19:56,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:19:56,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:19:56,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:19:56,650 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:19:56,650 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:19:57,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:19:57,142 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:19:57,148 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:19:57,152 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:19:57,152 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:19:57,153 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2020-09-24 19:19:57,228 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6cfb4ac9c/d3e1b4a18f634971b810b91f2bd6b048/FLAG786b76a77 [2020-09-24 19:19:57,751 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:19:57,752 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2020-09-24 19:19:57,761 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6cfb4ac9c/d3e1b4a18f634971b810b91f2bd6b048/FLAG786b76a77 [2020-09-24 19:19:58,106 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6cfb4ac9c/d3e1b4a18f634971b810b91f2bd6b048 [2020-09-24 19:19:58,120 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:19:58,127 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:19:58,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:19:58,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:19:58,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:19:58,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:19:58" (1/1) ... [2020-09-24 19:19:58,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31fe14eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:58, skipping insertion in model container [2020-09-24 19:19:58,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:19:58" (1/1) ... [2020-09-24 19:19:58,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:19:58,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:19:58,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:19:58,390 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:19:58,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:19:58,431 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:19:58,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:58 WrapperNode [2020-09-24 19:19:58,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:19:58,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:19:58,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:19:58,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:19:58,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:58" (1/1) ... [2020-09-24 19:19:58,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:58" (1/1) ... [2020-09-24 19:19:58,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:58" (1/1) ... [2020-09-24 19:19:58,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:58" (1/1) ... [2020-09-24 19:19:58,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:58" (1/1) ... [2020-09-24 19:19:58,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:58" (1/1) ... [2020-09-24 19:19:58,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:58" (1/1) ... [2020-09-24 19:19:58,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:19:58,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:19:58,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:19:58,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:19:58,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:58" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:19:58,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:19:58,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:19:58,620 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-24 19:19:58,620 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-24 19:19:58,620 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:19:58,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:19:58,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:19:58,621 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-24 19:19:58,621 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-24 19:19:58,621 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:19:58,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:19:58,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:19:58,877 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:19:58,877 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 19:19:58,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:19:58 BoogieIcfgContainer [2020-09-24 19:19:58,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:19:58,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:19:58,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:19:58,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:19:58,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:19:58" (1/3) ... [2020-09-24 19:19:58,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20af20ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:19:58, skipping insertion in model container [2020-09-24 19:19:58,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:19:58" (2/3) ... [2020-09-24 19:19:58,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20af20ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:19:58, skipping insertion in model container [2020-09-24 19:19:58,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:19:58" (3/3) ... [2020-09-24 19:19:58,921 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2020-09-24 19:19:58,941 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:19:58,962 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:19:58,984 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:19:59,013 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:19:59,013 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:19:59,013 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:19:59,013 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:19:59,014 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:19:59,014 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:19:59,014 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:19:59,014 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:19:59,034 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-24 19:19:59,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 19:19:59,041 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:19:59,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:19:59,043 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:19:59,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:19:59,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-24 19:19:59,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:19:59,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1611024146] [2020-09-24 19:19:59,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:19:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:59,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:59,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:59,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 19:19:59,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:59,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 19:19:59,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:59,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:19:59,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:19:59,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:19:59,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:19:59,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:19:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:59,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:59,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:59,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:19:59,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:59,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:19:59,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:59,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:59,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:59,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:59,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:59,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:19:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:59,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:59,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:59,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:19:59,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:59,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:19:59,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:59,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:19:59,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:19:59,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:59,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:19:59,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:19:59,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1611024146] [2020-09-24 19:19:59,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:19:59,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:19:59,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954544598] [2020-09-24 19:19:59,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:19:59,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:19:59,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:19:59,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:19:59,381 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-24 19:19:59,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:19:59,487 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-24 19:19:59,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:19:59,490 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 19:19:59,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:19:59,503 INFO L225 Difference]: With dead ends: 58 [2020-09-24 19:19:59,504 INFO L226 Difference]: Without dead ends: 42 [2020-09-24 19:19:59,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:19:59,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-24 19:19:59,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-24 19:19:59,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-24 19:19:59,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-24 19:19:59,562 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-24 19:19:59,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:19:59,563 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-24 19:19:59,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:19:59,563 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-24 19:19:59,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-24 19:19:59,566 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:19:59,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:19:59,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:19:59,567 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:19:59,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:19:59,567 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-24 19:19:59,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:19:59,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [231473312] [2020-09-24 19:19:59,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:19:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:59,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:59,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:59,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 19:19:59,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:59,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-24 19:19:59,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:59,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:19:59,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:19:59,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:19:59,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:19:59,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:19:59,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:59,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:59,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:59,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:19:59,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:59,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:19:59,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:59,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:19:59,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:19:59,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:19:59,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:19:59,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:19:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:19:59,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:19:59,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:19:59,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:19:59,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:19:59,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 19:19:59,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:19:59,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:19:59,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:19:59,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:19:59,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:19:59,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:19:59,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [231473312] [2020-09-24 19:19:59,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:19:59,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:19:59,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328165188] [2020-09-24 19:19:59,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:19:59,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:19:59,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:19:59,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:19:59,875 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-24 19:19:59,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:19:59,944 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-24 19:19:59,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:19:59,945 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-24 19:19:59,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:19:59,947 INFO L225 Difference]: With dead ends: 50 [2020-09-24 19:19:59,947 INFO L226 Difference]: Without dead ends: 44 [2020-09-24 19:19:59,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:19:59,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-24 19:19:59,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-24 19:19:59,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-24 19:19:59,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-24 19:19:59,960 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-24 19:19:59,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:19:59,960 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-24 19:19:59,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:19:59,961 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-24 19:19:59,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 19:19:59,965 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:19:59,965 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] [2020-09-24 19:19:59,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:19:59,966 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:19:59,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:19:59,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-24 19:19:59,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:19:59,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [658307992] [2020-09-24 19:19:59,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:19:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:00,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:00,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-24 19:20:00,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:00,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 509 [2020-09-24 19:20:00,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:00,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:00,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:20:00,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:00,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:20:00,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:00,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:00,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:00,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:00,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:00,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:00,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:00,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:00,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:00,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:00,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:00,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:00,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 19:20:00,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:00,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 19:20:00,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:00,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:00,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 19:20:00,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:00,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:00,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:00,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:00,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:00,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:00,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:20:00,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:00,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:20:00,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:00,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:00,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:00,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 19:20:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:00,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:00,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:00,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:00,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:20:00,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:00,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:00,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:20:00,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:00,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:00,716 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 19:20:00,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [658307992] [2020-09-24 19:20:00,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:00,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 19:20:00,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394396356] [2020-09-24 19:20:00,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:20:00,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:00,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:20:00,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:20:00,726 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 6 states. [2020-09-24 19:20:00,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:00,829 INFO L93 Difference]: Finished difference Result 82 states and 102 transitions. [2020-09-24 19:20:00,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:20:00,830 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-09-24 19:20:00,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:00,831 INFO L225 Difference]: With dead ends: 82 [2020-09-24 19:20:00,832 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 19:20:00,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:20:00,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 19:20:00,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2020-09-24 19:20:00,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-24 19:20:00,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2020-09-24 19:20:00,843 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 33 [2020-09-24 19:20:00,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:00,844 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2020-09-24 19:20:00,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:20:00,844 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2020-09-24 19:20:00,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-24 19:20:00,846 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:00,846 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 19:20:00,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:20:00,847 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:00,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:00,847 INFO L82 PathProgramCache]: Analyzing trace with hash 887160861, now seen corresponding path program 1 times [2020-09-24 19:20:00,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:00,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087895113] [2020-09-24 19:20:00,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:00,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:00,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:01,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 19:20:01,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:20:01,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 354 [2020-09-24 19:20:01,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:01,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:01,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:20:01,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 19:20:01,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:01,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:01,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:01,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:01,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:01,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:01,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:01,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:01,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:01,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:01,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:01,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:01,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:01,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:01,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:20:01,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-09-24 19:20:01,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:01,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:01,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:01,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:01,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:01,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:01,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:01,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:01,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:01,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:20:01,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:01,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:01,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:01,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:01,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:01,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:01,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:01,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:01,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:01,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:20:01,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:01,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:01,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:01,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:01,635 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 19:20:01,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087895113] [2020-09-24 19:20:01,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:20:01,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 19:20:01,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593694570] [2020-09-24 19:20:01,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:20:01,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:01,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:20:01,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:20:01,639 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 7 states. [2020-09-24 19:20:01,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:01,776 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2020-09-24 19:20:01,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:20:01,776 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-09-24 19:20:01,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:01,778 INFO L225 Difference]: With dead ends: 56 [2020-09-24 19:20:01,778 INFO L226 Difference]: Without dead ends: 50 [2020-09-24 19:20:01,779 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:20:01,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-24 19:20:01,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2020-09-24 19:20:01,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-24 19:20:01,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2020-09-24 19:20:01,788 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 34 [2020-09-24 19:20:01,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:01,789 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2020-09-24 19:20:01,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:20:01,789 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2020-09-24 19:20:01,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 19:20:01,791 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:01,791 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] [2020-09-24 19:20:01,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:20:01,792 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:01,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:01,792 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-24 19:20:01,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:01,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570536573] [2020-09-24 19:20:01,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:01,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:01,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:01,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:02,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 19:20:02,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:20:02,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 488 [2020-09-24 19:20:02,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:02,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:02,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 19:20:02,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:20:02,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:02,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:02,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:02,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:02,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:02,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:02,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:02,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:02,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:02,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:02,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:02,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:02,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:02,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 19:20:02,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:20:02,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 19:20:02,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:02,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:02,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:02,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:20:02,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:02,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:02,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:02,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:02,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:02,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 19:20:02,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:02,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:20:02,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:02,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:02,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:02,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:02,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:02,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:02,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:20:02,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 19:20:02,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:02,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:20:02,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:02,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:02,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:02,539 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 19:20:02,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1570536573] [2020-09-24 19:20:02,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:02,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 19:20:02,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128355339] [2020-09-24 19:20:02,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:20:02,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:02,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:20:02,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:20:02,542 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand 6 states. [2020-09-24 19:20:02,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:02,654 INFO L93 Difference]: Finished difference Result 100 states and 126 transitions. [2020-09-24 19:20:02,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:20:02,655 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-24 19:20:02,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:02,657 INFO L225 Difference]: With dead ends: 100 [2020-09-24 19:20:02,658 INFO L226 Difference]: Without dead ends: 58 [2020-09-24 19:20:02,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:20:02,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-24 19:20:02,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 52. [2020-09-24 19:20:02,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-24 19:20:02,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 61 transitions. [2020-09-24 19:20:02,669 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 61 transitions. Word has length 35 [2020-09-24 19:20:02,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:02,670 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 61 transitions. [2020-09-24 19:20:02,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:20:02,670 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2020-09-24 19:20:02,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 19:20:02,672 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:02,673 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] [2020-09-24 19:20:02,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:20:02,673 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:02,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:02,674 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-24 19:20:02,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:02,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [666056147] [2020-09-24 19:20:02,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:02,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:02,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:03,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:03,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:03,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:03,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 19:20:03,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:20:03,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:20:03,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:03,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:03,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-24 19:20:03,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:03,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:03,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:03,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:03,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:03,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:03,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:03,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:03,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:03,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:03,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:03,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:03,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:03,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:03,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:03,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:03,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:03,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:03,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:04,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:04,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 19:20:04,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:20:04,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:20:04,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:04,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:04,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-24 19:20:04,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:04,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:20:04,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:04,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:04,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:04,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 19:20:04,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:04,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 19:20:04,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:04,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:04,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 19:20:04,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:04,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:04,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:04,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:04,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:04,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:04,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:04,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:20:04,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:04,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:20:04,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:04,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:04,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:04,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 19:20:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:04,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:04,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:04,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:04,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:04,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:20:04,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:04,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:04,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:20:04,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:04,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:04,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 19:20:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:04,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:04,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:04,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:04,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:04,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:20:04,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:04,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:04,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 19:20:04,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:04,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:04,871 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 19:20:04,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [666056147] [2020-09-24 19:20:04,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:04,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 19:20:04,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481929136] [2020-09-24 19:20:04,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:20:04,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:04,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:20:04,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:20:04,874 INFO L87 Difference]: Start difference. First operand 52 states and 61 transitions. Second operand 6 states. [2020-09-24 19:20:04,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:04,947 INFO L93 Difference]: Finished difference Result 100 states and 125 transitions. [2020-09-24 19:20:04,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:20:04,947 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2020-09-24 19:20:04,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:04,949 INFO L225 Difference]: With dead ends: 100 [2020-09-24 19:20:04,949 INFO L226 Difference]: Without dead ends: 54 [2020-09-24 19:20:04,950 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:20:04,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-24 19:20:04,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-24 19:20:04,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-24 19:20:04,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2020-09-24 19:20:04,959 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 51 [2020-09-24 19:20:04,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:04,959 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2020-09-24 19:20:04,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:20:04,959 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2020-09-24 19:20:04,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-24 19:20:04,961 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:04,961 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] [2020-09-24 19:20:04,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:20:04,962 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:04,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:04,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1703786405, now seen corresponding path program 1 times [2020-09-24 19:20:04,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:04,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [429689282] [2020-09-24 19:20:04,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:04,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:04,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:04,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:05,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-24 19:20:05,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:05,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:20:05,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:05,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:05,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:20:05,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-24 19:20:05,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:05,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:05,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:05,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:05,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:06,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:06,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:06,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:06,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:06,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:06,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:06,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:06,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:06,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:06,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:06,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:06,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:07,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:07,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:07,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:20:07,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:07,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:07,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:07,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:20:07,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:07,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:07,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:07,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:07,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:07,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 19:20:07,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:07,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:07,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:07,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:07,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:07,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:07,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:07,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:07,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:07,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:20:07,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:07,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:07,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:07,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:07,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:07,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:07,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:07,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:07,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:07,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:07,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:07,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:07,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:07,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:07,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:07,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:07,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:07,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:07,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:07,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:07,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 19:20:07,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:07,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:07,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:07,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:07,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:07,175 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 19:20:07,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [429689282] [2020-09-24 19:20:07,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:07,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 19:20:07,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398433198] [2020-09-24 19:20:07,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:20:07,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:07,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:20:07,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:20:07,178 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand 7 states. [2020-09-24 19:20:07,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:07,306 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions. [2020-09-24 19:20:07,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:20:07,307 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2020-09-24 19:20:07,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:07,308 INFO L225 Difference]: With dead ends: 66 [2020-09-24 19:20:07,308 INFO L226 Difference]: Without dead ends: 60 [2020-09-24 19:20:07,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:20:07,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-24 19:20:07,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2020-09-24 19:20:07,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-24 19:20:07,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2020-09-24 19:20:07,318 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 52 [2020-09-24 19:20:07,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:07,318 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2020-09-24 19:20:07,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:20:07,319 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2020-09-24 19:20:07,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 19:20:07,320 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:07,320 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:20:07,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:20:07,321 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:07,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:07,321 INFO L82 PathProgramCache]: Analyzing trace with hash -387134248, now seen corresponding path program 1 times [2020-09-24 19:20:07,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:07,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [505347631] [2020-09-24 19:20:07,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:07,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:07,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:08,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:08,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:08,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-24 19:20:08,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:20:08,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-24 19:20:08,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:20:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 19:20:08,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:08,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:08,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:08,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:08,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:08,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:08,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:08,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:08,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:08,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:08,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:08,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:08,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:08,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:08,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:08,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:08,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:08,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:09,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 19:20:09,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 19:20:09,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1022 [2020-09-24 19:20:09,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:09,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:09,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:09,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 19:20:09,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:09,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:09,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:09,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:09,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:09,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 393 [2020-09-24 19:20:09,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:09,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:09,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:09,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:20:09,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:09,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:09,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:09,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:09,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:09,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 19:20:09,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:09,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:09,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:09,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:09,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:09,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:09,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:09,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:09,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:09,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 19:20:09,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:09,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:09,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:09,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:09,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:09,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:09,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:09,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:10,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:10,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:10,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:10,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:10,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-24 19:20:10,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:10,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:20:10,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:10,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:10,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:10,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:10,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:10,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:10,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:10,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:10,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:10,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:20:10,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:10,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:10,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:10,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:10,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:10,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:10,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:10,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:10,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:10,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:10,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:20:10,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:10,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:10,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:10,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:10,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:10,239 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 10 proven. 22 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-24 19:20:10,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [505347631] [2020-09-24 19:20:10,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:10,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 19:20:10,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542845470] [2020-09-24 19:20:10,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:20:10,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:10,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:20:10,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:20:10,243 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand 10 states. [2020-09-24 19:20:10,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:10,584 INFO L93 Difference]: Finished difference Result 120 states and 159 transitions. [2020-09-24 19:20:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 19:20:10,585 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 69 [2020-09-24 19:20:10,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:10,587 INFO L225 Difference]: With dead ends: 120 [2020-09-24 19:20:10,587 INFO L226 Difference]: Without dead ends: 72 [2020-09-24 19:20:10,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:20:10,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-24 19:20:10,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-09-24 19:20:10,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-24 19:20:10,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 88 transitions. [2020-09-24 19:20:10,605 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 88 transitions. Word has length 69 [2020-09-24 19:20:10,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:10,608 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 88 transitions. [2020-09-24 19:20:10,608 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:20:10,608 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 88 transitions. [2020-09-24 19:20:10,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-24 19:20:10,611 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:10,611 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2020-09-24 19:20:10,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:20:10,612 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:10,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:10,613 INFO L82 PathProgramCache]: Analyzing trace with hash -271039366, now seen corresponding path program 1 times [2020-09-24 19:20:10,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:10,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586368624] [2020-09-24 19:20:10,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:10,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:10,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:10,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:10,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:10,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:10,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:10,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:11,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-24 19:20:11,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 19:20:11,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1006 [2020-09-24 19:20:11,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:11,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:11,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 19:20:11,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 19:20:11,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:11,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:11,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:11,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:11,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:11,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:11,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:11,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:11,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:11,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:11,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:11,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:11,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:11,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:11,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:12,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:12,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:12,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:12,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-24 19:20:12,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:20:12,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:12,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:12,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:12,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 19:20:12,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 19:20:12,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:12,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:12,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:12,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:12,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:12,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:13,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:13,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 19:20:13,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:20:13,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:20:13,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:13,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:13,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:13,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 19:20:13,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:13,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:13,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:13,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:13,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:14,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:14,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:14,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-09-24 19:20:14,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:14,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:14,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:14,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:20:14,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:14,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:14,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:14,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:14,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:14,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:14,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:20:14,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:14,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:14,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:14,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:14,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:14,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:14,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:14,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:14,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:14,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:20:14,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:14,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:14,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:14,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:14,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:14,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:14,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:14,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:14,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:14,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:20:14,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:14,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:20:14,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:14,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:14,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:14,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-24 19:20:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:14,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:14,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:15,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 19:20:15,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:20:15,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:20:15,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:15,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:15,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:15,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 19:20:15,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:15,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:15,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:15,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:16,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:16,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:20:16,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:20:16,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:16,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:16,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:16,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 19:20:16,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:16,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:16,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:16,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:16,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:16,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 19:20:16,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:16,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:16,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:16,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:16,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:16,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:16,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:16,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:16,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:16,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:20:16,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:16,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:16,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:16,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:16,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:16,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:16,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:16,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:16,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:16,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:16,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:16,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:16,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:16,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:16,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:16,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:16,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:20:16,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:16,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:16,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:16,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:16,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:16,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:16,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:16,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:16,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:16,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:20:16,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:16,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:20:16,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:16,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:16,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:16,295 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 62 proven. 38 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2020-09-24 19:20:16,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586368624] [2020-09-24 19:20:16,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:16,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 19:20:16,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801319926] [2020-09-24 19:20:16,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:20:16,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:16,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:20:16,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:20:16,299 INFO L87 Difference]: Start difference. First operand 72 states and 88 transitions. Second operand 8 states. [2020-09-24 19:20:16,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:16,464 INFO L93 Difference]: Finished difference Result 144 states and 189 transitions. [2020-09-24 19:20:16,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:20:16,468 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 121 [2020-09-24 19:20:16,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:16,471 INFO L225 Difference]: With dead ends: 144 [2020-09-24 19:20:16,472 INFO L226 Difference]: Without dead ends: 78 [2020-09-24 19:20:16,475 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:20:16,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-24 19:20:16,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 72. [2020-09-24 19:20:16,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-24 19:20:16,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 87 transitions. [2020-09-24 19:20:16,495 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 87 transitions. Word has length 121 [2020-09-24 19:20:16,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:16,498 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 87 transitions. [2020-09-24 19:20:16,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:20:16,498 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 87 transitions. [2020-09-24 19:20:16,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-24 19:20:16,506 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:16,506 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:20:16,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 19:20:16,507 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:16,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:16,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1951493560, now seen corresponding path program 2 times [2020-09-24 19:20:16,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:16,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052622829] [2020-09-24 19:20:16,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:16,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:16,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:16,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:17,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-24 19:20:17,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:20:17,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:17,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:17,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:17,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:20:17,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 19:20:17,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:17,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:17,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:17,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:17,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:17,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:17,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:17,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:17,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:17,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:17,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:17,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:17,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:17,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:18,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:18,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:20:18,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:20:18,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:18,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:18,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:18,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:18,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-24 19:20:18,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:18,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:18,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:18,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:18,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:18,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:18,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 19:20:18,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:18,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:18,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:20:18,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:18,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:18,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:18,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:18,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:18,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:18,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:20:18,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:18,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:18,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:18,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:18,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:18,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:18,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:18,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:18,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:18,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:18,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:18,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:20:18,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:18,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:18,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:18,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:18,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:18,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:18,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:18,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:18,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:18,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:18,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:18,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:18,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:18,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:18,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:18,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:18,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:18,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:18,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:18,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:18,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:18,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:18,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:18,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:18,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:18,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:18,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:18,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:18,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:18,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:18,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:18,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:18,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:18,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:20:18,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-24 19:20:18,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:18,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:18,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:18,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:20:18,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:18,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:18,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:18,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:18,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:18,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:18,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:20:18,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:18,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:18,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:18,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:18,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:19,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:19,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:19,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:19,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:19,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:19,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:20:19,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:19,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:19,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:19,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:19,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:19,049 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 39 proven. 13 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-09-24 19:20:19,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052622829] [2020-09-24 19:20:19,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:19,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 19:20:19,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185899418] [2020-09-24 19:20:19,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:20:19,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:19,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:20:19,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:20:19,052 INFO L87 Difference]: Start difference. First operand 72 states and 87 transitions. Second operand 9 states. [2020-09-24 19:20:19,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:19,263 INFO L93 Difference]: Finished difference Result 112 states and 136 transitions. [2020-09-24 19:20:19,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 19:20:19,264 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 87 [2020-09-24 19:20:19,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:19,265 INFO L225 Difference]: With dead ends: 112 [2020-09-24 19:20:19,265 INFO L226 Difference]: Without dead ends: 98 [2020-09-24 19:20:19,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-09-24 19:20:19,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-24 19:20:19,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 78. [2020-09-24 19:20:19,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-24 19:20:19,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 99 transitions. [2020-09-24 19:20:19,275 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 99 transitions. Word has length 87 [2020-09-24 19:20:19,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:19,275 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 99 transitions. [2020-09-24 19:20:19,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:20:19,276 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 99 transitions. [2020-09-24 19:20:19,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-09-24 19:20:19,277 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:19,278 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:20:19,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 19:20:19,278 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:19,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:19,278 INFO L82 PathProgramCache]: Analyzing trace with hash 307755032, now seen corresponding path program 1 times [2020-09-24 19:20:19,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:19,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1601140454] [2020-09-24 19:20:19,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:19,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:19,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:19,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:19,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:19,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:20,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-24 19:20:20,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:20:20,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:20:20,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:20,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:20,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:20:20,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 19:20:20,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:20,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:20,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:20,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:20,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:20,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:20,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:20,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:20,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:20,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:20,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:20,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:20,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:20,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:21,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:21,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:21,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-24 19:20:21,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:20:21,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:21,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:21,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:20:21,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:21,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 19:20:21,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:21,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:21,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:21,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:21,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:21,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:21,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:21,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:22,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:22,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:22,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:20:22,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:20:22,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:22,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:22,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:22,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 19:20:22,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:22,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:22,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:22,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:22,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:22,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:22,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 19:20:22,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:22,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:22,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:22,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:22,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:22,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:22,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:22,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:22,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:22,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:22,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:22,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:20:22,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:22,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:22,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:22,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:22,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:22,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:22,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:22,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:22,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:22,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:22,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:22,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:22,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:22,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:22,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:22,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:22,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:22,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:22,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:22,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:22,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:22,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:20:22,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:22,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:22,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:22,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:22,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:22,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:22,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:22,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:22,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:22,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:22,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:23,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:23,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:20:23,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:23,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:23,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:23,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:23,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:20:23,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:23,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:23,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:23,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:23,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:23,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 19:20:23,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:23,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:23,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:23,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:20:23,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:23,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:23,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:23,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:23,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:23,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:23,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:20:23,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:23,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:23,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:23,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:23,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:23,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:23,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:23,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:23,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:23,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:20:23,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:23,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:23,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:23,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:23,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:23,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:23,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:23,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:23,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:23,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:23,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:23,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:20:23,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:23,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:23,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:23,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:23,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:23,732 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 53 proven. 36 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2020-09-24 19:20:23,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1601140454] [2020-09-24 19:20:23,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:23,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 19:20:23,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268433631] [2020-09-24 19:20:23,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:20:23,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:23,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:20:23,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:20:23,736 INFO L87 Difference]: Start difference. First operand 78 states and 99 transitions. Second operand 11 states. [2020-09-24 19:20:23,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:23,984 INFO L93 Difference]: Finished difference Result 181 states and 259 transitions. [2020-09-24 19:20:23,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:20:23,986 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 105 [2020-09-24 19:20:23,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:23,989 INFO L225 Difference]: With dead ends: 181 [2020-09-24 19:20:23,989 INFO L226 Difference]: Without dead ends: 109 [2020-09-24 19:20:23,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-09-24 19:20:23,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-24 19:20:24,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 103. [2020-09-24 19:20:24,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-09-24 19:20:24,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 132 transitions. [2020-09-24 19:20:24,008 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 132 transitions. Word has length 105 [2020-09-24 19:20:24,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:24,009 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 132 transitions. [2020-09-24 19:20:24,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:20:24,009 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 132 transitions. [2020-09-24 19:20:24,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-09-24 19:20:24,012 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:24,012 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:20:24,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 19:20:24,013 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:24,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:24,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1630569666, now seen corresponding path program 1 times [2020-09-24 19:20:24,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:24,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266843965] [2020-09-24 19:20:24,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:24,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:24,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:25,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-24 19:20:25,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:20:25,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:20:25,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:25,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:25,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-09-24 19:20:25,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 19:20:25,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:25,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:25,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:25,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:25,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:25,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:25,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:25,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:25,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:25,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:25,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:25,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:25,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:25,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:26,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-09-24 19:20:26,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 19:20:26,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:26,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:26,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:26,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 19:20:26,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 19:20:26,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:26,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:26,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:26,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:26,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:27,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 19:20:27,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:20:27,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:20:27,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:27,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:27,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:27,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 19:20:27,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:27,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:27,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:27,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:27,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:27,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 325 [2020-09-24 19:20:27,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:27,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:27,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:27,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:20:27,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:27,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:27,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:27,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:27,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:27,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:20:27,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:27,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:27,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:27,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:27,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:27,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:27,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:27,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:27,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:27,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:20:27,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:27,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:27,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:27,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:27,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:27,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:27,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:27,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:27,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:27,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 19:20:27,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:27,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:20:27,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:27,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:27,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:27,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:27,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:27,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:27,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:27,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:20:27,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:27,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:27,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:27,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:27,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:27,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:27,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:27,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:27,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:27,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:20:27,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:27,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:27,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:27,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:27,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:27,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-24 19:20:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:27,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:27,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:28,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 19:20:28,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:20:28,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:20:28,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:28,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:28,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:28,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-24 19:20:28,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:28,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:28,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:28,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:29,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:29,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:29,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-09-24 19:20:29,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:29,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:29,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:29,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:20:29,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:29,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:29,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:29,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:29,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:29,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:20:29,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:29,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:29,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:29,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:29,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:29,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:29,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:29,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:29,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:29,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:20:29,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:29,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:29,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:29,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:29,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:29,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:29,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:29,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:29,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:29,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-09-24 19:20:29,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:29,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:20:29,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:29,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:29,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:29,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:29,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:29,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:29,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:29,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:20:29,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:29,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:29,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:29,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:29,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:29,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:29,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:29,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:29,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:29,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:20:29,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:29,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:29,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:29,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:29,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:29,447 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 89 proven. 81 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2020-09-24 19:20:29,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [266843965] [2020-09-24 19:20:29,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:29,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 19:20:29,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589287675] [2020-09-24 19:20:29,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:20:29,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:29,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:20:29,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:20:29,450 INFO L87 Difference]: Start difference. First operand 103 states and 132 transitions. Second operand 9 states. [2020-09-24 19:20:29,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:29,621 INFO L93 Difference]: Finished difference Result 217 states and 306 transitions. [2020-09-24 19:20:29,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 19:20:29,622 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 139 [2020-09-24 19:20:29,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:29,626 INFO L225 Difference]: With dead ends: 217 [2020-09-24 19:20:29,626 INFO L226 Difference]: Without dead ends: 123 [2020-09-24 19:20:29,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-09-24 19:20:29,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-09-24 19:20:29,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 111. [2020-09-24 19:20:29,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-09-24 19:20:29,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 142 transitions. [2020-09-24 19:20:29,642 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 142 transitions. Word has length 139 [2020-09-24 19:20:29,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:29,642 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 142 transitions. [2020-09-24 19:20:29,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:20:29,643 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 142 transitions. [2020-09-24 19:20:29,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-09-24 19:20:29,646 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:29,647 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 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] [2020-09-24 19:20:29,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 19:20:29,647 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:29,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:29,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1260071360, now seen corresponding path program 3 times [2020-09-24 19:20:29,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:29,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204462398] [2020-09-24 19:20:29,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:29,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:29,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:30,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-09-24 19:20:30,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:20:30,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:20:30,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:30,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:20:30,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:20:30,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-24 19:20:30,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:30,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:30,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:30,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:30,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:30,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:30,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:30,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:30,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:30,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:30,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:30,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:30,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:30,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:30,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:31,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-24 19:20:31,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:20:31,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:31,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:31,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:20:31,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:31,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-09-24 19:20:31,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:31,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:31,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:31,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:32,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:32,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:32,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:32,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:20:32,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:20:32,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:20:32,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:32,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 19:20:32,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:32,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-24 19:20:32,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:32,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:32,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:32,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:32,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:32,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:32,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 19:20:32,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:32,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:32,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:32,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:20:32,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:32,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:32,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:32,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:32,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:32,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:32,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:20:32,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:32,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:32,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:32,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:32,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:32,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:32,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:32,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:32,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:32,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:32,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:32,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:32,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:32,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:32,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:32,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:32,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:32,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:32,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:32,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:32,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:32,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:32,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:32,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:32,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:32,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:32,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:32,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:32,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:32,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:32,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:32,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:32,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:32,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:32,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:32,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:32,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:32,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:32,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:32,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:32,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:33,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:33,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:20:33,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-09-24 19:20:33,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:33,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:33,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:33,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:20:33,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:33,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:33,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:33,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:33,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:33,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:20:33,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:33,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:33,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:33,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:33,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:33,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:33,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:33,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:33,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:33,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:20:33,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:33,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:33,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:33,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:33,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:33,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 19:20:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:33,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:33,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:33,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:33,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 19:20:33,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:33,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:33,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:33,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:20:33,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:33,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:33,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:33,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:33,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:33,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:20:33,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:33,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:33,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:33,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:33,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:33,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:33,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:33,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:33,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:33,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:33,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:20:33,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:33,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:33,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:33,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:33,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:33,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:33,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:33,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:33,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:33,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:20:33,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:33,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:33,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:33,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:33,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:33,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:33,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:33,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:33,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:33,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:20:33,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:33,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:33,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:33,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:33,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:33,402 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 59 proven. 80 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-09-24 19:20:33,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204462398] [2020-09-24 19:20:33,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:33,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 19:20:33,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207088319] [2020-09-24 19:20:33,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:20:33,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:33,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:20:33,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:20:33,406 INFO L87 Difference]: Start difference. First operand 111 states and 142 transitions. Second operand 10 states. [2020-09-24 19:20:33,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:33,708 INFO L93 Difference]: Finished difference Result 249 states and 372 transitions. [2020-09-24 19:20:33,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 19:20:33,709 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 140 [2020-09-24 19:20:33,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:33,714 INFO L225 Difference]: With dead ends: 249 [2020-09-24 19:20:33,714 INFO L226 Difference]: Without dead ends: 128 [2020-09-24 19:20:33,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:20:33,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-09-24 19:20:33,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 122. [2020-09-24 19:20:33,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-09-24 19:20:33,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 163 transitions. [2020-09-24 19:20:33,744 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 163 transitions. Word has length 140 [2020-09-24 19:20:33,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:33,746 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 163 transitions. [2020-09-24 19:20:33,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:20:33,746 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 163 transitions. [2020-09-24 19:20:33,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-24 19:20:33,754 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:33,754 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 10, 10, 10, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:20:33,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 19:20:33,755 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:33,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:33,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1315675070, now seen corresponding path program 2 times [2020-09-24 19:20:33,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:33,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [38093522] [2020-09-24 19:20:33,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:33,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:33,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:33,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:34,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:34,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:34,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:34,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:34,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:34,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:34,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:34,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:34,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:34,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:34,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-09-24 19:20:34,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-24 19:20:34,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1008 [2020-09-24 19:20:34,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:34,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 19:20:34,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:20:34,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 19:20:34,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:34,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:34,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:34,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:34,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:34,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:34,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:34,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:34,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:34,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:34,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:34,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:34,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:34,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:34,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:35,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:35,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:35,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:35,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:35,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:35,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:35,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:35,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-24 19:20:35,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 19:20:35,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:20:35,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:35,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 19:20:35,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 19:20:35,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 19:20:35,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:35,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:35,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:35,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:35,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:36,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-24 19:20:36,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-24 19:20:36,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:20:36,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:36,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:20:36,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:36,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-24 19:20:36,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:36,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:36,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:36,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:37,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:37,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:37,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:37,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:37,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:37,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:20:37,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-24 19:20:37,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:37,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:37,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:37,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 19:20:37,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:37,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:37,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:38,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:38,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:38,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:38,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 19:20:38,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:38,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:38,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:38,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:38,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:38,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:38,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:38,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:38,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:38,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:38,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:38,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:38,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:38,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:38,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:38,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:38,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:38,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:38,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:38,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:38,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:38,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:38,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:38,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:38,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:38,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:38,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:38,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:38,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:38,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:38,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:38,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:38,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:38,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 19:20:38,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:38,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:38,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:38,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:38,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:38,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:38,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:38,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:38,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:38,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:38,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:39,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:39,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:39,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:20:39,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:39,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:39,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:39,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:39,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:20:39,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:39,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:39,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:39,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:39,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:39,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:39,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 19:20:39,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:39,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:39,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:39,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:20:39,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:39,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:39,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:39,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:39,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:39,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:39,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:39,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:39,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:39,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:39,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:39,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:39,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:39,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:39,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:39,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:39,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:39,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:20:39,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:39,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:39,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:39,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:39,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:39,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:39,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:39,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:39,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:39,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:39,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:20:39,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:20:39,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:39,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:39,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:39,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:39,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:39,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:20:39,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:39,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:39,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:39,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:39,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:39,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:39,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:39,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:39,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:39,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:39,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:39,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:39,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:39,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:40,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:40,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-24 19:20:40,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-24 19:20:40,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:20:40,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:40,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:40,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-09-24 19:20:40,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:40,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:40,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:40,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:40,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:40,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:40,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:40,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 19:20:40,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:40,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:40,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:40,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:40,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:40,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:40,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:40,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:40,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:40,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:40,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:20:40,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:40,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:40,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:40,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:40,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:40,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:40,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:40,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:40,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:40,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:40,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:40,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:40,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:40,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:40,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:40,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:40,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:40,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:40,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:40,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:40,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:40,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:40,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:40,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:40,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:40,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:40,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:40,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:40,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:40,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:40,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:40,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:40,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:40,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:40,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:40,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:40,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:40,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:40,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:40,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:40,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:40,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:20:40,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:40,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:40,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:40,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:40,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:40,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:40,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:40,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:40,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:40,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:40,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:20:40,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:40,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:40,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:40,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:40,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:40,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:40,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:40,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:40,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:40,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:40,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:40,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:40,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:40,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:40,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:40,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:40,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:40,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:40,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:40,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:40,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:40,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:40,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:40,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:40,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:40,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:40,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:40,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:40,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:40,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:40,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:40,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:40,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:40,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:40,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:40,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:40,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:40,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:40,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:40,411 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 99 proven. 183 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2020-09-24 19:20:40,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [38093522] [2020-09-24 19:20:40,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:20:40,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 19:20:40,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693475809] [2020-09-24 19:20:40,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 19:20:40,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:20:40,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 19:20:40,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-24 19:20:40,414 INFO L87 Difference]: Start difference. First operand 122 states and 163 transitions. Second operand 12 states. [2020-09-24 19:20:40,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:20:40,788 INFO L93 Difference]: Finished difference Result 295 states and 492 transitions. [2020-09-24 19:20:40,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:20:40,788 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 211 [2020-09-24 19:20:40,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:20:40,791 INFO L225 Difference]: With dead ends: 295 [2020-09-24 19:20:40,791 INFO L226 Difference]: Without dead ends: 171 [2020-09-24 19:20:40,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2020-09-24 19:20:40,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-09-24 19:20:40,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 153. [2020-09-24 19:20:40,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-09-24 19:20:40,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 226 transitions. [2020-09-24 19:20:40,816 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 226 transitions. Word has length 211 [2020-09-24 19:20:40,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:20:40,816 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 226 transitions. [2020-09-24 19:20:40,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 19:20:40,816 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 226 transitions. [2020-09-24 19:20:40,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2020-09-24 19:20:40,824 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:20:40,824 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 18, 18, 17, 14, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:20:40,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 19:20:40,824 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:20:40,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:20:40,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1293350858, now seen corresponding path program 4 times [2020-09-24 19:20:40,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:20:40,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962413324] [2020-09-24 19:20:40,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:20:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:40,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:40,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:41,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:41,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:41,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:41,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:41,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:41,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:41,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 436 [2020-09-24 19:20:41,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 19:20:41,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1012 [2020-09-24 19:20:41,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:41,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 19:20:41,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:20:41,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-09-24 19:20:41,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:41,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:20:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:41,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:41,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:41,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:20:41,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:41,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:41,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:41,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:41,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:41,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:41,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:41,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 19:20:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:41,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:42,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:42,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:42,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:42,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:42,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:42,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:42,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 422 [2020-09-24 19:20:42,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:20:42,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-09-24 19:20:42,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:42,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 19:20:42,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-24 19:20:42,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-09-24 19:20:42,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:42,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:42,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:43,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:43,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:43,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:43,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:43,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:43,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 19:20:43,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:20:43,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:20:43,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:43,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 19:20:43,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:20:43,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-09-24 19:20:43,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:20:44,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:44,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:44,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:44,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:44,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:44,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:44,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:44,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:44,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:45,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:45,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:20:45,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 19:20:45,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:20:45,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:45,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:20:45,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:45,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-24 19:20:45,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:45,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:45,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:45,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:45,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:45,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:45,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 19:20:45,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:45,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:45,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:45,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:20:45,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:45,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:45,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:45,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:45,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:45,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:45,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:20:45,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:45,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:45,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:45,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:45,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:45,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:45,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:45,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:45,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:45,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:45,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:45,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:45,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:45,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:45,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:45,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:45,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:45,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:45,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:45,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:45,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:45,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:45,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:45,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:45,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:45,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:45,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:45,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:45,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:45,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:45,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:45,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:45,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:45,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:45,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:45,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:45,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:45,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:45,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:45,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:45,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:45,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:45,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:45,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:45,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:45,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:45,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-09-24 19:20:45,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:45,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 19:20:45,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:45,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:20:45,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:45,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:45,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:45,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:45,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:45,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:45,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:20:45,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:45,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:45,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:45,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:20:45,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:45,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:45,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:45,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:45,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:45,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:45,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:20:45,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:45,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:45,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:45,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:45,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:45,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 19:20:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:45,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:45,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:45,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:45,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:45,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:45,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:45,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:45,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:46,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:46,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 19:20:46,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 19:20:46,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:20:46,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:46,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:20:46,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 19:20:46,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-24 19:20:46,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:46,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:46,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:46,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:46,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 19:20:46,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:46,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 19:20:46,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:46,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:46,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:46,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 19:20:46,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:46,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:46,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:46,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:46,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:46,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:46,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:46,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:20:46,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:46,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:46,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:46,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:46,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:46,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:46,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:46,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:46,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:46,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:46,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:46,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:20:46,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:46,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:46,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:46,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:46,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:46,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:46,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:46,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:46,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:46,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:46,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:20:46,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:46,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:46,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:46,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:46,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:46,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 19:20:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:46,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:46,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:46,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:46,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:46,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:20:46,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:46,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:20:46,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:46,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:20:46,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:46,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 19:20:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:46,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:46,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:46,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:46,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:46,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 19:20:46,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:20:46,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-09-24 19:20:46,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:46,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:20:46,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:46,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 19:20:46,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:46,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:20:46,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:46,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:46,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:46,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:20:46,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:46,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:20:46,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:46,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:46,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:46,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:20:46,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:46,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 19:20:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:46,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:46,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:20:46,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:20:46,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:20:46,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:20:46,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:20:46,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:20:46,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:20:46,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:20:46,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:20:46,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 19:20:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:20:46,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:47,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:47,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:47,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:20:47,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking...