/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --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/recHanoi01.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:52:26,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:52:26,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:52:26,435 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:52:26,436 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:52:26,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:52:26,445 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:52:26,449 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:52:26,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:52:26,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:52:26,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:52:26,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:52:26,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:52:26,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:52:26,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:52:26,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:52:26,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:52:26,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:52:26,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:52:26,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:52:26,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:52:26,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:52:26,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:52:26,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:52:26,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:52:26,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:52:26,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:52:26,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:52:26,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:52:26,503 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:52:26,503 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:52:26,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:52:26,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:52:26,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:52:26,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:52:26,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:52:26,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:52:26,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:52:26,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:52:26,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:52:26,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:52:26,514 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:52:26,558 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:52:26,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:52:26,561 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:52:26,561 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:52:26,561 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:52:26,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:52:26,562 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:52:26,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:52:26,562 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:52:26,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:52:26,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:52:26,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:52:26,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:52:26,564 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:52:26,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:52:26,565 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:52:26,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:52:26,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:52:26,565 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:52:26,565 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:52:26,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:52:26,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:52:26,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:52:26,566 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:52:26,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:52:26,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:52:26,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:52:26,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:52:26,567 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:52:26,567 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 00:52:26,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:52:27,010 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:52:27,016 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:52:27,018 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:52:27,019 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:52:27,020 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/recHanoi01.c [2020-09-25 00:52:27,107 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/99e49608a/9c17a7f933ae4924bac670a0ddc64e49/FLAG9220b4d01 [2020-09-25 00:52:27,657 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:52:27,658 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/recHanoi01.c [2020-09-25 00:52:27,667 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/99e49608a/9c17a7f933ae4924bac670a0ddc64e49/FLAG9220b4d01 [2020-09-25 00:52:28,025 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/99e49608a/9c17a7f933ae4924bac670a0ddc64e49 [2020-09-25 00:52:28,041 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:52:28,047 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:52:28,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:52:28,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:52:28,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:52:28,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:52:28" (1/1) ... [2020-09-25 00:52:28,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@406521a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:28, skipping insertion in model container [2020-09-25 00:52:28,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:52:28" (1/1) ... [2020-09-25 00:52:28,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:52:28,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:52:28,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:52:28,312 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:52:28,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:52:28,351 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:52:28,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:28 WrapperNode [2020-09-25 00:52:28,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:52:28,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:52:28,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:52:28,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:52:28,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:28" (1/1) ... [2020-09-25 00:52:28,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:28" (1/1) ... [2020-09-25 00:52:28,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:28" (1/1) ... [2020-09-25 00:52:28,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:28" (1/1) ... [2020-09-25 00:52:28,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:28" (1/1) ... [2020-09-25 00:52:28,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:28" (1/1) ... [2020-09-25 00:52:28,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:28" (1/1) ... [2020-09-25 00:52:28,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:52:28,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:52:28,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:52:28,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:52:28,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:52:28,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:52:28,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:52:28,536 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-09-25 00:52:28,536 INFO L138 BoogieDeclarations]: Found implementation of procedure applyHanoi [2020-09-25 00:52:28,537 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:52:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:52:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:52:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-09-25 00:52:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure applyHanoi [2020-09-25 00:52:28,538 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:52:28,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:52:28,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:52:28,778 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:52:28,778 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 00:52:28,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:52:28 BoogieIcfgContainer [2020-09-25 00:52:28,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:52:28,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:52:28,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:52:28,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:52:28,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:52:28" (1/3) ... [2020-09-25 00:52:28,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36dfbc38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:52:28, skipping insertion in model container [2020-09-25 00:52:28,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:28" (2/3) ... [2020-09-25 00:52:28,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36dfbc38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:52:28, skipping insertion in model container [2020-09-25 00:52:28,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:52:28" (3/3) ... [2020-09-25 00:52:28,794 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi01.c [2020-09-25 00:52:28,810 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:52:28,819 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:52:28,846 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:52:28,883 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:52:28,883 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:52:28,884 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:52:28,884 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:52:28,884 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:52:28,884 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:52:28,885 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:52:28,885 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:52:28,911 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 00:52:28,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-25 00:52:28,922 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:28,924 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:28,924 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:28,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:28,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1892500808, now seen corresponding path program 1 times [2020-09-25 00:52:28,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:28,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [396324536] [2020-09-25 00:52:28,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:29,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:29,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:29,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:29,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 00:52:29,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:29,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438 [2020-09-25 00:52:29,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:29,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:29,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 00:52:29,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 00:52:29,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 00:52:29,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:29,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:29,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:29,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:52:29,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:29,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:52:29,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:29,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:29,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:29,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:29,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:29,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 00:52:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:29,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:29,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:29,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:52:29,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:29,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 00:52:29,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:29,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:29,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:29,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:52:29,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:29,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-25 00:52:29,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:29,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:29,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:29,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:29,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:29,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 00:52:29,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:29,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:29,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:29,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:29,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:29,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:52:29,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [396324536] [2020-09-25 00:52:29,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:52:29,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:52:29,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948402307] [2020-09-25 00:52:29,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:52:29,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:29,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:52:29,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:52:29,901 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 8 states. [2020-09-25 00:52:30,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:30,212 INFO L93 Difference]: Finished difference Result 72 states and 84 transitions. [2020-09-25 00:52:30,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 00:52:30,215 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2020-09-25 00:52:30,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:30,242 INFO L225 Difference]: With dead ends: 72 [2020-09-25 00:52:30,242 INFO L226 Difference]: Without dead ends: 50 [2020-09-25 00:52:30,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-09-25 00:52:30,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-25 00:52:30,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 44. [2020-09-25 00:52:30,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-25 00:52:30,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2020-09-25 00:52:30,313 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 29 [2020-09-25 00:52:30,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:30,313 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2020-09-25 00:52:30,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:52:30,314 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2020-09-25 00:52:30,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-25 00:52:30,317 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:30,317 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, 1, 1, 1] [2020-09-25 00:52:30,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:52:30,318 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:30,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:30,319 INFO L82 PathProgramCache]: Analyzing trace with hash -2098647058, now seen corresponding path program 1 times [2020-09-25 00:52:30,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:30,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1924189958] [2020-09-25 00:52:30,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:30,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:30,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 00:52:30,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:30,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-09-25 00:52:30,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:30,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:30,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 00:52:30,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 00:52:30,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:30,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:30,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:30,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:52:30,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:30,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:52:30,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:30,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:30,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:30,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:30,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:30,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 00:52:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:30,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:30,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:52:30,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:30,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 00:52:30,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:30,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:30,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:30,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:52:30,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:30,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-25 00:52:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:30,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:30,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:52:30,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:30,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 00:52:30,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:30,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:30,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:30,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 00:52:30,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:30,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:30,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:30,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:30,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:30,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:30,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 00:52:30,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:30,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:30,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:30,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:30,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:30,954 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 00:52:30,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1924189958] [2020-09-25 00:52:30,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:30,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 00:52:30,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396928482] [2020-09-25 00:52:30,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:52:30,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:30,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:52:30,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:52:30,961 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand 10 states. [2020-09-25 00:52:31,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:31,227 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2020-09-25 00:52:31,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 00:52:31,227 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2020-09-25 00:52:31,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:31,229 INFO L225 Difference]: With dead ends: 50 [2020-09-25 00:52:31,230 INFO L226 Difference]: Without dead ends: 43 [2020-09-25 00:52:31,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:52:31,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-25 00:52:31,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2020-09-25 00:52:31,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-25 00:52:31,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2020-09-25 00:52:31,254 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 37 [2020-09-25 00:52:31,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:31,255 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2020-09-25 00:52:31,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:52:31,255 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2020-09-25 00:52:31,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-25 00:52:31,257 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:31,258 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2020-09-25 00:52:31,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:52:31,258 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:31,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:31,259 INFO L82 PathProgramCache]: Analyzing trace with hash -165736076, now seen corresponding path program 1 times [2020-09-25 00:52:31,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:31,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [664839724] [2020-09-25 00:52:31,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:31,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:31,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-25 00:52:31,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:31,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-09-25 00:52:31,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:31,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 00:52:31,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:52:31,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 00:52:31,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:31,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:31,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:31,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:31,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:52:31,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:31,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:52:31,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:31,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:31,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:31,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:31,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 00:52:31,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 00:52:31,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:31,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:31,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 00:52:31,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:31,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 00:52:31,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:31,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:52:31,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 00:52:31,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 00:52:31,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:31,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:31,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:31,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:52:31,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:31,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 00:52:31,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:31,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:31,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 00:52:31,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 00:52:31,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:31,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 00:52:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:31,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:31,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:52:31,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:31,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 00:52:31,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:31,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:31,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 00:52:31,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 00:52:31,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:31,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 00:52:31,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:31,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:31,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:31,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:31,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:31,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 00:52:31,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:31,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:31,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:31,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:31,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:32,022 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 00:52:32,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [664839724] [2020-09-25 00:52:32,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:32,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 00:52:32,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526048864] [2020-09-25 00:52:32,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 00:52:32,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:32,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 00:52:32,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:52:32,029 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 11 states. [2020-09-25 00:52:32,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:32,551 INFO L93 Difference]: Finished difference Result 93 states and 110 transitions. [2020-09-25 00:52:32,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 00:52:32,552 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 48 [2020-09-25 00:52:32,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:32,555 INFO L225 Difference]: With dead ends: 93 [2020-09-25 00:52:32,555 INFO L226 Difference]: Without dead ends: 85 [2020-09-25 00:52:32,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2020-09-25 00:52:32,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-25 00:52:32,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 75. [2020-09-25 00:52:32,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-09-25 00:52:32,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 92 transitions. [2020-09-25 00:52:32,574 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 92 transitions. Word has length 48 [2020-09-25 00:52:32,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:32,574 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 92 transitions. [2020-09-25 00:52:32,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 00:52:32,575 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 92 transitions. [2020-09-25 00:52:32,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 00:52:32,577 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:32,577 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:32,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:52:32,578 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:32,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:32,578 INFO L82 PathProgramCache]: Analyzing trace with hash 492898986, now seen corresponding path program 1 times [2020-09-25 00:52:32,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:32,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1801450714] [2020-09-25 00:52:32,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:32,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:32,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:32,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:33,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:34,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:34,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-25 00:52:34,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:52:34,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1948 [2020-09-25 00:52:34,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:34,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:34,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 00:52:34,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 00:52:34,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:34,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:34,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:34,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:34,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:52:34,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:34,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:52:34,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:34,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:34,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:34,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:34,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:34,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 00:52:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:34,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:34,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:34,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:34,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 00:52:34,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:34,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-25 00:52:34,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:34,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 00:52:34,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:34,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:34,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:34,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:34,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:52:34,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:34,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:52:34,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:34,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:34,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:34,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:34,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:34,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 00:52:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:34,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:34,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:34,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:52:34,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:34,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 00:52:34,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:34,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:34,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:34,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:52:34,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:34,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 00:52:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:34,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:34,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:34,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:34,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:52:34,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:34,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 00:52:34,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:34,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:34,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:34,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 00:52:34,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:35,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:35,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:35,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:35,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:35,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:35,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 00:52:35,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:35,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:35,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:35,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:35,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:35,099 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 00:52:35,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1801450714] [2020-09-25 00:52:35,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:35,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 00:52:35,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78893544] [2020-09-25 00:52:35,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 00:52:35,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:35,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 00:52:35,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:52:35,104 INFO L87 Difference]: Start difference. First operand 75 states and 92 transitions. Second operand 11 states. [2020-09-25 00:52:35,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:35,471 INFO L93 Difference]: Finished difference Result 132 states and 171 transitions. [2020-09-25 00:52:35,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:52:35,472 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-09-25 00:52:35,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:35,478 INFO L225 Difference]: With dead ends: 132 [2020-09-25 00:52:35,478 INFO L226 Difference]: Without dead ends: 76 [2020-09-25 00:52:35,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2020-09-25 00:52:35,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-09-25 00:52:35,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 70. [2020-09-25 00:52:35,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-25 00:52:35,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 84 transitions. [2020-09-25 00:52:35,511 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 84 transitions. Word has length 56 [2020-09-25 00:52:35,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:35,512 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 84 transitions. [2020-09-25 00:52:35,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 00:52:35,512 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 84 transitions. [2020-09-25 00:52:35,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 00:52:35,517 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:35,517 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 3, 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, 1] [2020-09-25 00:52:35,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:52:35,518 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:35,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:35,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1310810726, now seen corresponding path program 2 times [2020-09-25 00:52:35,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:35,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2009094976] [2020-09-25 00:52:35,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:35,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:35,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:35,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:35,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:36,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:37,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:40,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:40,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 00:52:40,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:52:40,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4962 [2020-09-25 00:52:40,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:40,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:40,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 00:52:40,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 00:52:40,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:40,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:40,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:40,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:40,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:52:40,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:40,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:52:40,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:40,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:40,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:40,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:40,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:40,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 00:52:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:40,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:40,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:40,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 00:52:41,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:41,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 694 [2020-09-25 00:52:41,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:41,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 00:52:41,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 00:52:41,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:41,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:41,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 00:52:41,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:41,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-25 00:52:41,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:41,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:41,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 00:52:41,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:41,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:41,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:52:41,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:41,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:52:41,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:41,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:41,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:41,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:41,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 00:52:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:41,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:52:41,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:41,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 00:52:41,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:41,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:41,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:52:41,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:41,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 00:52:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:41,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:52:41,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:41,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 00:52:41,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:41,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:41,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:41,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:41,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-25 00:52:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:41,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:41,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:41,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:41,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:41,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:52:41,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:41,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:41,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:52:41,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:41,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:41,667 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 40 proven. 21 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-25 00:52:41,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2009094976] [2020-09-25 00:52:41,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:41,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 00:52:41,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477374642] [2020-09-25 00:52:41,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:52:41,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:41,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:52:41,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:52:41,670 INFO L87 Difference]: Start difference. First operand 70 states and 84 transitions. Second operand 10 states. [2020-09-25 00:52:41,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:41,951 INFO L93 Difference]: Finished difference Result 124 states and 158 transitions. [2020-09-25 00:52:41,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 00:52:41,952 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 67 [2020-09-25 00:52:41,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:41,953 INFO L225 Difference]: With dead ends: 124 [2020-09-25 00:52:41,955 INFO L226 Difference]: Without dead ends: 79 [2020-09-25 00:52:41,956 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2020-09-25 00:52:41,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-25 00:52:41,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 63. [2020-09-25 00:52:41,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 00:52:41,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2020-09-25 00:52:41,976 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 71 transitions. Word has length 67 [2020-09-25 00:52:41,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:41,976 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 71 transitions. [2020-09-25 00:52:41,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:52:41,977 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2020-09-25 00:52:41,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 00:52:41,984 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:41,984 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:41,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:52:41,984 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:41,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:41,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1835668384, now seen corresponding path program 3 times [2020-09-25 00:52:41,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:41,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [895921258] [2020-09-25 00:52:41,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:42,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:42,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:42,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:42,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:42,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:44,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:47,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:47,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-09-25 00:52:47,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:52:47,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 00:52:47,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:47,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:52:47,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 00:52:47,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-25 00:52:47,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:47,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:47,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:47,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:47,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:52:47,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:47,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:47,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:47,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:47,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:47,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:47,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:47,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 00:52:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:47,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:47,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:47,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:47,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:47,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:47,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:52,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 00:52:52,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:52:52,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 00:52:52,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:52,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:52,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:52,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 00:52:52,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:52,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:52,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:52,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 00:52:52,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:52,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 430 [2020-09-25 00:52:52,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:52,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:52:52,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:52,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 00:52:52,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:52,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:52,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:52,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:52:52,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:52,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:52:52,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:52,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:52,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:52,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:52:52,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:52,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 00:52:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:52,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:52,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:52:52,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:52,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:52:52,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:52,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:52,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:52,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:52,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:52,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 00:52:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:52,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:52,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 00:52:52,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:52,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 00:52:52,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:52,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:52,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:52,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 00:52:52,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:52,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:52,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:52,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:52,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:52:52,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:52,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:52:52,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:52,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:52,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:52,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:52,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:52,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 00:52:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:52,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:52,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:52:52,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:52,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:52:52,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:52,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:52,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:52,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:52,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:52:52,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-25 00:52:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:52,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:52,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:52,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:52,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:52:52,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:52,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:52,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:52,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:52,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:52,773 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 12 proven. 89 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-09-25 00:52:52,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [895921258] [2020-09-25 00:52:52,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:52,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 00:52:52,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266521337] [2020-09-25 00:52:52,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 00:52:52,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:52,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 00:52:52,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-25 00:52:52,776 INFO L87 Difference]: Start difference. First operand 63 states and 71 transitions. Second operand 11 states. [2020-09-25 00:52:53,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:53,140 INFO L93 Difference]: Finished difference Result 85 states and 97 transitions. [2020-09-25 00:52:53,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 00:52:53,140 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 86 [2020-09-25 00:52:53,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:53,142 INFO L225 Difference]: With dead ends: 85 [2020-09-25 00:52:53,142 INFO L226 Difference]: Without dead ends: 79 [2020-09-25 00:52:53,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2020-09-25 00:52:53,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-25 00:52:53,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 65. [2020-09-25 00:52:53,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-09-25 00:52:53,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions. [2020-09-25 00:52:53,161 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 86 [2020-09-25 00:52:53,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:53,163 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions. [2020-09-25 00:52:53,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 00:52:53,163 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2020-09-25 00:52:53,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-25 00:52:53,166 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:53,166 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:53,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 00:52:53,167 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:53,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:53,167 INFO L82 PathProgramCache]: Analyzing trace with hash -646694506, now seen corresponding path program 2 times [2020-09-25 00:52:53,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:53,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941293381] [2020-09-25 00:52:53,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:53,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:54,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:54,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 00:52:54,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:54,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1129 [2020-09-25 00:52:54,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:54,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 00:52:54,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:52:54,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-25 00:52:54,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:54,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:54,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:54,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:54,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:52:54,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:54,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:52:54,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:54,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:54,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:54,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:54,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:54,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 00:52:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:54,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:54,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:54,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 00:52:54,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:54,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 505 [2020-09-25 00:52:54,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:54,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 00:52:54,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 00:52:54,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 00:52:54,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:55,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:55,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:55,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:55,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 00:52:55,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:55,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 00:52:55,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:55,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:52:55,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 00:52:55,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 00:52:55,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:55,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:55,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:55,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:55,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:55,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:52:55,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:55,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 00:52:55,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:55,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:55,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 00:52:55,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 00:52:55,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:55,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 00:52:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:55,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:55,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:55,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:52:55,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:55,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 00:52:55,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:55,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:55,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 00:52:55,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 00:52:55,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:55,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 00:52:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:55,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:55,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:55,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 00:52:55,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:55,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 00:52:55,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:55,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:52:55,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 00:52:55,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 00:52:55,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:55,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:52:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:55,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:55,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:55,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:52:55,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:55,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 00:52:55,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:55,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:55,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 00:52:55,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 00:52:55,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:55,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 00:52:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:55,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:55,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:55,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:52:55,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:55,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 00:52:55,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:55,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:55,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 00:52:55,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 00:52:55,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:55,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-25 00:52:55,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:55,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:55,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:55,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:52:55,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:55,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 00:52:55,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:55,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:55,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:55,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 00:52:55,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:55,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:52:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:55,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:55,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:55,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:55,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:55,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:52:55,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:55,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:52:55,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:55,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:52:55,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:55,673 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 6 proven. 63 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-09-25 00:52:55,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [941293381] [2020-09-25 00:52:55,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:55,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 00:52:55,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032410269] [2020-09-25 00:52:55,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 00:52:55,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:55,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 00:52:55,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-09-25 00:52:55,677 INFO L87 Difference]: Start difference. First operand 65 states and 73 transitions. Second operand 17 states. [2020-09-25 00:52:56,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:56,495 INFO L93 Difference]: Finished difference Result 102 states and 118 transitions. [2020-09-25 00:52:56,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 00:52:56,495 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 94 [2020-09-25 00:52:56,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:56,497 INFO L225 Difference]: With dead ends: 102 [2020-09-25 00:52:56,497 INFO L226 Difference]: Without dead ends: 96 [2020-09-25 00:52:56,498 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=187, Invalid=1003, Unknown=0, NotChecked=0, Total=1190 [2020-09-25 00:52:56,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-09-25 00:52:56,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 85. [2020-09-25 00:52:56,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-25 00:52:56,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 101 transitions. [2020-09-25 00:52:56,523 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 101 transitions. Word has length 94 [2020-09-25 00:52:56,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:56,524 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 101 transitions. [2020-09-25 00:52:56,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 00:52:56,524 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 101 transitions. [2020-09-25 00:52:56,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-25 00:52:56,529 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:56,529 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2020-09-25 00:52:56,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 00:52:56,529 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:56,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:56,531 INFO L82 PathProgramCache]: Analyzing trace with hash 774145474, now seen corresponding path program 3 times [2020-09-25 00:52:56,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:56,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055464808] [2020-09-25 00:52:56,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:56,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:56,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:56,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:56,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:57,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:57,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:58,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:01,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:01,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-25 00:53:01,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 00:53:01,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 00:53:01,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:01,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:53:01,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 00:53:01,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 00:53:01,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:01,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:53:01,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:01,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:01,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:01,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:53:01,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:01,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:53:01,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:01,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:53:01,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:01,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:53:01,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:53:01,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 00:53:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:01,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:01,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:01,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:01,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:02,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:03,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:03,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:04,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:04,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:04,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:06,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:06,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-25 00:53:06,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 00:53:06,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 00:53:06,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:06,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 00:53:06,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 00:53:06,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 00:53:06,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:06,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:53:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:06,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:06,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:06,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:06,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 00:53:06,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:53:06,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-25 00:53:06,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:06,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:53:06,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:06,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 00:53:06,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:06,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:53:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:06,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:06,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:06,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:53:06,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:06,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:53:06,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:06,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:53:06,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:06,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:53:06,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:06,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 00:53:06,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:06,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:06,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:06,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:53:06,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:06,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 00:53:06,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:06,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:53:06,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:06,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:53:06,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:06,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 00:53:06,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:06,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:07,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:07,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:07,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:11,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:11,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 00:53:11,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:53:11,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 00:53:11,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:11,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:53:11,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:53:11,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 00:53:11,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:12,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:53:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:12,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:12,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:12,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:12,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 00:53:12,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:53:12,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-25 00:53:12,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:12,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:53:12,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:12,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 00:53:12,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:12,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:53:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:12,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:12,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:12,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:53:12,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:12,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:53:12,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:12,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:53:12,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:12,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:53:12,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:12,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 00:53:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:12,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:12,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:12,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:53:12,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:12,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 00:53:12,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:12,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:53:12,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:12,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:53:12,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:12,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-25 00:53:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:12,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:12,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:12,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 00:53:12,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:12,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 00:53:12,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:12,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:53:12,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:12,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 00:53:12,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:53:12,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-25 00:53:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:12,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:12,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:12,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:53:12,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:12,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:53:12,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:12,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:53:12,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:12,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:53:12,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:53:12,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 00:53:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:12,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:12,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:12,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 00:53:12,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:12,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:53:12,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:12,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:53:12,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:12,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:53:12,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:12,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-09-25 00:53:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:12,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:12,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:12,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 00:53:12,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:12,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:53:12,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:12,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:53:12,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 00:53:12,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:53:12,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:12,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:53:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:12,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:12,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:12,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:53:12,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:12,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:53:12,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:12,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:53:12,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:12,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:53:12,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:12,434 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 112 proven. 176 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2020-09-25 00:53:12,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055464808] [2020-09-25 00:53:12,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:53:12,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 00:53:12,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044019264] [2020-09-25 00:53:12,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 00:53:12,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:53:12,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 00:53:12,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-09-25 00:53:12,437 INFO L87 Difference]: Start difference. First operand 85 states and 101 transitions. Second operand 12 states. [2020-09-25 00:53:12,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:53:12,816 INFO L93 Difference]: Finished difference Result 163 states and 207 transitions. [2020-09-25 00:53:12,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 00:53:12,816 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 132 [2020-09-25 00:53:12,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:53:12,819 INFO L225 Difference]: With dead ends: 163 [2020-09-25 00:53:12,820 INFO L226 Difference]: Without dead ends: 115 [2020-09-25 00:53:12,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-09-25 00:53:12,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-09-25 00:53:12,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 94. [2020-09-25 00:53:12,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-25 00:53:12,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 109 transitions. [2020-09-25 00:53:12,834 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 109 transitions. Word has length 132 [2020-09-25 00:53:12,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:53:12,835 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 109 transitions. [2020-09-25 00:53:12,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 00:53:12,835 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 109 transitions. [2020-09-25 00:53:12,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-09-25 00:53:12,836 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:53:12,836 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-25 00:53:12,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 00:53:12,837 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:53:12,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:53:12,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1860925472, now seen corresponding path program 4 times [2020-09-25 00:53:12,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:53:12,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [176464054] [2020-09-25 00:53:12,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:53:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:12,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:12,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:13,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:13,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:13,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking...