/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/array-tiling/pnr3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 19:55:11,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 19:55:11,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 19:55:11,457 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 19:55:11,458 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 19:55:11,459 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 19:55:11,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 19:55:11,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 19:55:11,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 19:55:11,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 19:55:11,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 19:55:11,470 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 19:55:11,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 19:55:11,472 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 19:55:11,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 19:55:11,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 19:55:11,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 19:55:11,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 19:55:11,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 19:55:11,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 19:55:11,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 19:55:11,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 19:55:11,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 19:55:11,516 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 19:55:11,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 19:55:11,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 19:55:11,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 19:55:11,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 19:55:11,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 19:55:11,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 19:55:11,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 19:55:11,524 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 19:55:11,525 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 19:55:11,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 19:55:11,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 19:55:11,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 19:55:11,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 19:55:11,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 19:55:11,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 19:55:11,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 19:55:11,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 19:55:11,533 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 [2020-10-26 19:55:11,561 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 19:55:11,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 19:55:11,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 19:55:11,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 19:55:11,564 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 19:55:11,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 19:55:11,564 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 19:55:11,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 19:55:11,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 19:55:11,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 19:55:11,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 19:55:11,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 19:55:11,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 19:55:11,566 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 19:55:11,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 19:55:11,566 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 19:55:11,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 19:55:11,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 19:55:11,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 19:55:11,567 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 19:55:11,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 19:55:11,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 19:55:11,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 19:55:11,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 19:55:11,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 19:55:11,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 19:55:11,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 19:55:11,569 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 19:55:11,569 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 19:55:11,569 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 19:55:12,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 19:55:12,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 19:55:12,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 19:55:12,059 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 19:55:12,060 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 19:55:12,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/pnr3.c [2020-10-26 19:55:12,155 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5dbf0d24d/a513c36dccb74121b25bd8154d665eeb/FLAGbc29452e9 [2020-10-26 19:55:12,883 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 19:55:12,884 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-tiling/pnr3.c [2020-10-26 19:55:12,891 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5dbf0d24d/a513c36dccb74121b25bd8154d665eeb/FLAGbc29452e9 [2020-10-26 19:55:13,221 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5dbf0d24d/a513c36dccb74121b25bd8154d665eeb [2020-10-26 19:55:13,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 19:55:13,232 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 19:55:13,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 19:55:13,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 19:55:13,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 19:55:13,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:55:13" (1/1) ... [2020-10-26 19:55:13,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@336ab18d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:55:13, skipping insertion in model container [2020-10-26 19:55:13,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:55:13" (1/1) ... [2020-10-26 19:55:13,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 19:55:13,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 19:55:13,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 19:55:13,532 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 19:55:13,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 19:55:13,585 INFO L208 MainTranslator]: Completed translation [2020-10-26 19:55:13,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:55:13 WrapperNode [2020-10-26 19:55:13,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 19:55:13,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 19:55:13,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 19:55:13,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 19:55:13,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:55:13" (1/1) ... [2020-10-26 19:55:13,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:55:13" (1/1) ... [2020-10-26 19:55:13,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:55:13" (1/1) ... [2020-10-26 19:55:13,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:55:13" (1/1) ... [2020-10-26 19:55:13,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:55:13" (1/1) ... [2020-10-26 19:55:13,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:55:13" (1/1) ... [2020-10-26 19:55:13,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:55:13" (1/1) ... [2020-10-26 19:55:13,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 19:55:13,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 19:55:13,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 19:55:13,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 19:55:13,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:55:13" (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 [2020-10-26 19:55:13,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 19:55:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 19:55:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 19:55:13,797 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-26 19:55:13,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-26 19:55:13,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadFromPort [2020-10-26 19:55:13,797 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 19:55:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 19:55:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 19:55:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 19:55:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 19:55:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-26 19:55:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-26 19:55:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 19:55:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-26 19:55:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure ReadFromPort [2020-10-26 19:55:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 19:55:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-26 19:55:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 19:55:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 19:55:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 19:55:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 19:55:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 19:55:13,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 19:55:14,342 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 19:55:14,342 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-26 19:55:14,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:55:14 BoogieIcfgContainer [2020-10-26 19:55:14,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 19:55:14,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 19:55:14,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 19:55:14,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 19:55:14,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:55:13" (1/3) ... [2020-10-26 19:55:14,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c80875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:55:14, skipping insertion in model container [2020-10-26 19:55:14,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:55:13" (2/3) ... [2020-10-26 19:55:14,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c80875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:55:14, skipping insertion in model container [2020-10-26 19:55:14,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:55:14" (3/3) ... [2020-10-26 19:55:14,357 INFO L111 eAbstractionObserver]: Analyzing ICFG pnr3.c [2020-10-26 19:55:14,371 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 19:55:14,376 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 19:55:14,391 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 19:55:14,421 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 19:55:14,422 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 19:55:14,422 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 19:55:14,422 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 19:55:14,422 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 19:55:14,422 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 19:55:14,423 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 19:55:14,423 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 19:55:14,444 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2020-10-26 19:55:14,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-26 19:55:14,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:14,451 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] [2020-10-26 19:55:14,452 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:14,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:14,459 INFO L82 PathProgramCache]: Analyzing trace with hash -2114082212, now seen corresponding path program 1 times [2020-10-26 19:55:14,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:14,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1296462362] [2020-10-26 19:55:14,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:14,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:14,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:14,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:14,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 19:55:14,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:55:14,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-10-26 19:55:14,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:14,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:14,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 19:55:14,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:14,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 19:55:15,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:15,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:15,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:15,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:15,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:15,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 19:55:15,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:15,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:15,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:15,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:15,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:15,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:55:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:15,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:15,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:15,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:15,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:15,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 19:55:15,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:15,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:15,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-26 19:55:15,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:15,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:15,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 19:55:15,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1296462362] [2020-10-26 19:55:15,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 19:55:15,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 19:55:15,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078907577] [2020-10-26 19:55:15,178 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 19:55:15,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:15,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 19:55:15,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 19:55:15,199 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 3 states. [2020-10-26 19:55:15,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:15,366 INFO L93 Difference]: Finished difference Result 82 states and 105 transitions. [2020-10-26 19:55:15,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 19:55:15,368 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-26 19:55:15,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:15,379 INFO L225 Difference]: With dead ends: 82 [2020-10-26 19:55:15,379 INFO L226 Difference]: Without dead ends: 40 [2020-10-26 19:55:15,383 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 19:55:15,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-26 19:55:15,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-26 19:55:15,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-26 19:55:15,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2020-10-26 19:55:15,440 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 22 [2020-10-26 19:55:15,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:15,441 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2020-10-26 19:55:15,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 19:55:15,442 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2020-10-26 19:55:15,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-26 19:55:15,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:15,445 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] [2020-10-26 19:55:15,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 19:55:15,446 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:15,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:15,448 INFO L82 PathProgramCache]: Analyzing trace with hash -857808937, now seen corresponding path program 1 times [2020-10-26 19:55:15,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:15,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148002138] [2020-10-26 19:55:15,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:15,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:15,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:15,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:15,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:16,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:16,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 19:55:16,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 19:55:16,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1231 [2020-10-26 19:55:16,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:16,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 19:55:16,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:55:16,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 19:55:16,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:16,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:16,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:16,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:16,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:16,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:16,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 19:55:16,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:16,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:16,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:16,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:16,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:17,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:55:17,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:17,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:17,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:17,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:17,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:17,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 19:55:17,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:17,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 19:55:17,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:17,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-26 19:55:17,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:17,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 19:55:17,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [148002138] [2020-10-26 19:55:17,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 19:55:17,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-26 19:55:17,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891641832] [2020-10-26 19:55:17,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 19:55:17,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:17,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 19:55:17,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-26 19:55:17,067 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 8 states. [2020-10-26 19:55:17,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:17,564 INFO L93 Difference]: Finished difference Result 67 states and 81 transitions. [2020-10-26 19:55:17,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 19:55:17,565 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-10-26 19:55:17,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:17,567 INFO L225 Difference]: With dead ends: 67 [2020-10-26 19:55:17,567 INFO L226 Difference]: Without dead ends: 55 [2020-10-26 19:55:17,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-26 19:55:17,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-26 19:55:17,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 41. [2020-10-26 19:55:17,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-26 19:55:17,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2020-10-26 19:55:17,584 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 22 [2020-10-26 19:55:17,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:17,584 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2020-10-26 19:55:17,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 19:55:17,584 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2020-10-26 19:55:17,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-26 19:55:17,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:17,586 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:55:17,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 19:55:17,587 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:17,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:17,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1259975463, now seen corresponding path program 1 times [2020-10-26 19:55:17,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:17,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1527250106] [2020-10-26 19:55:17,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:17,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:17,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:17,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-26 19:55:17,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:17,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-10-26 19:55:17,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:17,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-26 19:55:17,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 19:55:17,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-26 19:55:17,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:18,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 19:55:18,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:18,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:18,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:55:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:18,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:18,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:18,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:18,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:55:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:18,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:18,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:18,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:18,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:55:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:18,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:55:18,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:18,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:18,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:55:18,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:18,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:18,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:18,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:18,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:55:18,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:18,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:18,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:18,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:18,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:18,131 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-26 19:55:18,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1527250106] [2020-10-26 19:55:18,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:55:18,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-26 19:55:18,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395236307] [2020-10-26 19:55:18,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-26 19:55:18,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:18,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-26 19:55:18,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-26 19:55:18,134 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand 10 states. [2020-10-26 19:55:18,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:18,721 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2020-10-26 19:55:18,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 19:55:18,722 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2020-10-26 19:55:18,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:18,724 INFO L225 Difference]: With dead ends: 93 [2020-10-26 19:55:18,724 INFO L226 Difference]: Without dead ends: 90 [2020-10-26 19:55:18,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2020-10-26 19:55:18,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-10-26 19:55:18,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 59. [2020-10-26 19:55:18,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-26 19:55:18,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 72 transitions. [2020-10-26 19:55:18,744 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 72 transitions. Word has length 42 [2020-10-26 19:55:18,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:18,744 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 72 transitions. [2020-10-26 19:55:18,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-26 19:55:18,745 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 72 transitions. [2020-10-26 19:55:18,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-26 19:55:18,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:18,746 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:55:18,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 19:55:18,747 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:18,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:18,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1478830181, now seen corresponding path program 1 times [2020-10-26 19:55:18,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:18,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2006951065] [2020-10-26 19:55:18,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:18,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:19,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:19,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-26 19:55:19,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:19,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 348 [2020-10-26 19:55:19,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:19,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-26 19:55:19,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:55:19,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-26 19:55:19,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:19,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:19,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:19,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:19,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:19,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:19,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 19:55:19,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:19,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:19,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:19,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:19,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:19,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:55:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:19,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:19,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:19,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:19,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:19,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 19:55:19,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:19,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:19,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:19,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:19,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:19,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:55:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:19,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:19,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:19,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:19,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:19,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:55:19,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:19,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:19,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:19,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:19,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:19,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:55:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:19,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:19,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:19,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:19,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:19,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 19:55:19,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:19,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:19,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:19,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:19,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:19,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:55:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:19,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:19,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:19,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:19,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:19,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 19:55:19,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:19,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:19,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:19,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:19,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:19,377 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-26 19:55:19,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2006951065] [2020-10-26 19:55:19,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:55:19,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-26 19:55:19,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105156186] [2020-10-26 19:55:19,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 19:55:19,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:19,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 19:55:19,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-26 19:55:19,382 INFO L87 Difference]: Start difference. First operand 59 states and 72 transitions. Second operand 11 states. [2020-10-26 19:55:19,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:19,920 INFO L93 Difference]: Finished difference Result 87 states and 110 transitions. [2020-10-26 19:55:19,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 19:55:19,920 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 42 [2020-10-26 19:55:19,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:19,924 INFO L225 Difference]: With dead ends: 87 [2020-10-26 19:55:19,924 INFO L226 Difference]: Without dead ends: 84 [2020-10-26 19:55:19,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2020-10-26 19:55:19,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-26 19:55:19,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 47. [2020-10-26 19:55:19,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-26 19:55:19,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2020-10-26 19:55:19,940 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 42 [2020-10-26 19:55:19,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:19,940 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2020-10-26 19:55:19,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 19:55:19,941 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2020-10-26 19:55:19,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-26 19:55:19,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:19,942 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2020-10-26 19:55:19,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 19:55:19,943 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:19,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:19,943 INFO L82 PathProgramCache]: Analyzing trace with hash -517456030, now seen corresponding path program 1 times [2020-10-26 19:55:19,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:19,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245888696] [2020-10-26 19:55:19,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:20,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:20,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:20,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-26 19:55:20,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:20,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-10-26 19:55:20,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:20,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-26 19:55:20,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 19:55:20,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-26 19:55:20,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:20,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:20,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:20,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:20,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:20,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:20,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 19:55:20,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:20,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:20,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:20,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:20,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 19:55:20,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:55:20,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:20,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:20,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:20,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:20,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:20,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:20,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:20,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:20,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:20,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:20,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:20,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:55:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:20,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:20,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:20,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:20,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:20,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:20,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:20,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:20,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:20,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:20,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:20,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:55:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:20,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:20,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:20,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:20,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:20,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:55:20,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:20,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:20,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:20,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:20,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:20,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:55:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:20,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:20,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:20,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:20,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:20,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 19:55:20,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:20,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:20,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:20,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:20,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:20,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-26 19:55:20,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:20,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:20,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:20,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:20,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:20,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:55:20,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:20,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:20,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:20,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:20,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:20,658 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-26 19:55:20,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [245888696] [2020-10-26 19:55:20,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:55:20,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-26 19:55:20,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517277929] [2020-10-26 19:55:20,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 19:55:20,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:20,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 19:55:20,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-26 19:55:20,661 INFO L87 Difference]: Start difference. First operand 47 states and 53 transitions. Second operand 11 states. [2020-10-26 19:55:21,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:21,710 INFO L93 Difference]: Finished difference Result 118 states and 155 transitions. [2020-10-26 19:55:21,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 19:55:21,710 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 50 [2020-10-26 19:55:21,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:21,714 INFO L225 Difference]: With dead ends: 118 [2020-10-26 19:55:21,714 INFO L226 Difference]: Without dead ends: 115 [2020-10-26 19:55:21,715 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2020-10-26 19:55:21,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-26 19:55:21,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 69. [2020-10-26 19:55:21,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-26 19:55:21,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 83 transitions. [2020-10-26 19:55:21,746 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 83 transitions. Word has length 50 [2020-10-26 19:55:21,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:21,746 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 83 transitions. [2020-10-26 19:55:21,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 19:55:21,747 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 83 transitions. [2020-10-26 19:55:21,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-26 19:55:21,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:21,749 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2020-10-26 19:55:21,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 19:55:21,749 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:21,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:21,749 INFO L82 PathProgramCache]: Analyzing trace with hash -651469536, now seen corresponding path program 1 times [2020-10-26 19:55:21,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:21,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2098532748] [2020-10-26 19:55:21,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:21,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:22,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:22,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-26 19:55:22,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:22,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343 [2020-10-26 19:55:22,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:22,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-26 19:55:22,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:55:22,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-26 19:55:22,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:22,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:22,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:22,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:22,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:22,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:22,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 19:55:22,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:22,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:22,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:22,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:22,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:22,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:55:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:22,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:22,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:22,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:22,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:22,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 19:55:22,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:22,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:22,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:22,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:22,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 19:55:22,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:55:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:22,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:22,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:22,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:22,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:22,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:55:22,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:22,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:22,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:22,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:22,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:22,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:55:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:22,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:22,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:22,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:22,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:22,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:22,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:22,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:22,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:22,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:22,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:22,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:55:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:22,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:22,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:22,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:22,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:22,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:22,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:22,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:22,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:22,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:22,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:22,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-26 19:55:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:22,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:22,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:22,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:22,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:22,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:22,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:22,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:22,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:22,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:22,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:22,418 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-26 19:55:22,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2098532748] [2020-10-26 19:55:22,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:55:22,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-26 19:55:22,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999995248] [2020-10-26 19:55:22,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 19:55:22,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:22,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 19:55:22,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-26 19:55:22,424 INFO L87 Difference]: Start difference. First operand 69 states and 83 transitions. Second operand 12 states. [2020-10-26 19:55:23,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:23,306 INFO L93 Difference]: Finished difference Result 120 states and 156 transitions. [2020-10-26 19:55:23,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 19:55:23,307 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 50 [2020-10-26 19:55:23,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:23,310 INFO L225 Difference]: With dead ends: 120 [2020-10-26 19:55:23,310 INFO L226 Difference]: Without dead ends: 117 [2020-10-26 19:55:23,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2020-10-26 19:55:23,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-26 19:55:23,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 55. [2020-10-26 19:55:23,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-26 19:55:23,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 61 transitions. [2020-10-26 19:55:23,345 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 61 transitions. Word has length 50 [2020-10-26 19:55:23,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:23,346 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 61 transitions. [2020-10-26 19:55:23,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 19:55:23,346 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 61 transitions. [2020-10-26 19:55:23,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-26 19:55:23,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:23,352 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:55:23,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 19:55:23,352 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:23,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:23,353 INFO L82 PathProgramCache]: Analyzing trace with hash 565207197, now seen corresponding path program 2 times [2020-10-26 19:55:23,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:23,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [673025301] [2020-10-26 19:55:23,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:23,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:23,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:23,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 19:55:23,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:23,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-10-26 19:55:23,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:23,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-26 19:55:23,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 19:55:23,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-26 19:55:23,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:23,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:23,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:23,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:23,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:23,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:23,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:55:23,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:23,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:23,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:23,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:23,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:23,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:55:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:23,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:23,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:23,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:23,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:23,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:23,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:23,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:23,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:23,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:23,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 19:55:23,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:55:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:23,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:23,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:23,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:23,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:23,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:23,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:23,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:23,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:23,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:23,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:23,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:55:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:24,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:24,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:24,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:24,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:24,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:24,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:24,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:24,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:24,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:24,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:24,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:55:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:24,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:24,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:24,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:24,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:24,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:24,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:24,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:24,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:24,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:24,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:24,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-26 19:55:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:24,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:24,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:24,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:24,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:24,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:24,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:24,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:24,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:24,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:24,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:24,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-26 19:55:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:24,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:24,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:24,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:24,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:24,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 19:55:24,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:24,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:24,056 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-26 19:55:24,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [673025301] [2020-10-26 19:55:24,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:55:24,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-26 19:55:24,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016568039] [2020-10-26 19:55:24,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 19:55:24,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:24,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 19:55:24,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-26 19:55:24,060 INFO L87 Difference]: Start difference. First operand 55 states and 61 transitions. Second operand 11 states. [2020-10-26 19:55:24,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:24,939 INFO L93 Difference]: Finished difference Result 119 states and 150 transitions. [2020-10-26 19:55:24,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-26 19:55:24,940 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 58 [2020-10-26 19:55:24,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:24,945 INFO L225 Difference]: With dead ends: 119 [2020-10-26 19:55:24,945 INFO L226 Difference]: Without dead ends: 116 [2020-10-26 19:55:24,946 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2020-10-26 19:55:24,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-26 19:55:24,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 81. [2020-10-26 19:55:24,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-10-26 19:55:24,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 96 transitions. [2020-10-26 19:55:24,985 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 96 transitions. Word has length 58 [2020-10-26 19:55:24,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:24,986 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 96 transitions. [2020-10-26 19:55:24,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 19:55:24,986 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 96 transitions. [2020-10-26 19:55:24,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-26 19:55:24,987 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:24,988 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:55:24,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 19:55:24,988 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:24,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:24,989 INFO L82 PathProgramCache]: Analyzing trace with hash 627246811, now seen corresponding path program 1 times [2020-10-26 19:55:24,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:24,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279249645] [2020-10-26 19:55:24,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:25,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:25,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:25,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 19:55:25,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:25,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 374 [2020-10-26 19:55:25,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:25,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-26 19:55:25,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:55:25,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-26 19:55:25,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:25,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:25,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:25,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:25,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:25,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:25,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:25,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:25,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:25,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:25,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:25,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:25,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:55:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:25,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:25,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:25,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:25,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:25,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 19:55:25,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:25,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:25,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:25,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:25,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:25,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:55:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:25,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:25,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:25,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:25,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:25,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 19:55:25,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:25,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:25,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:25,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:25,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:25,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:55:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:25,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:25,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:25,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:25,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:25,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:55:25,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:25,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:25,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:25,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:25,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:25,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:55:25,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:25,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:25,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:25,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:25,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:25,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 19:55:25,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:25,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:25,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:25,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:25,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:25,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-26 19:55:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:25,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:25,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:25,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:25,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:25,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:25,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:25,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:25,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:25,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:25,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:25,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-26 19:55:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:25,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:25,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:25,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:25,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:25,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:25,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:25,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:25,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:25,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:25,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:25,732 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-26 19:55:25,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279249645] [2020-10-26 19:55:25,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:55:25,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-26 19:55:25,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529437453] [2020-10-26 19:55:25,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 19:55:25,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:25,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 19:55:25,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-26 19:55:25,741 INFO L87 Difference]: Start difference. First operand 81 states and 96 transitions. Second operand 12 states. [2020-10-26 19:55:26,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:26,678 INFO L93 Difference]: Finished difference Result 129 states and 164 transitions. [2020-10-26 19:55:26,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 19:55:26,679 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 58 [2020-10-26 19:55:26,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:26,680 INFO L225 Difference]: With dead ends: 129 [2020-10-26 19:55:26,681 INFO L226 Difference]: Without dead ends: 126 [2020-10-26 19:55:26,683 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2020-10-26 19:55:26,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-26 19:55:26,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 63. [2020-10-26 19:55:26,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-26 19:55:26,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2020-10-26 19:55:26,717 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 58 [2020-10-26 19:55:26,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:26,717 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2020-10-26 19:55:26,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 19:55:26,717 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2020-10-26 19:55:26,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-26 19:55:26,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:26,723 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:55:26,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 19:55:26,724 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:26,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:26,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1481447128, now seen corresponding path program 3 times [2020-10-26 19:55:26,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:26,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932599777] [2020-10-26 19:55:26,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:26,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:26,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:27,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:27,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-26 19:55:27,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:55:27,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 897 [2020-10-26 19:55:27,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:27,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-26 19:55:27,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 19:55:27,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-26 19:55:27,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:27,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:27,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:27,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:27,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:27,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:27,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:55:27,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:27,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:27,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:27,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:27,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:27,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:55:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:27,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:27,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:27,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:27,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:27,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:55:27,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 19:55:27,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:27,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:27,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:27,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:27,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:27,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:55:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:27,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:27,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:27,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:27,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:27,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:27,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:27,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:27,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:27,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:27,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:27,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:55:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:27,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:27,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:27,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:27,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:27,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:27,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:27,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:27,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:27,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:27,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:27,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:55:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:27,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:27,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:27,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:27,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:27,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:27,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:27,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:27,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:27,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:27,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:27,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-26 19:55:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:27,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:27,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:27,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:27,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:27,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:27,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:27,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:27,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:27,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:27,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:27,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-26 19:55:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:27,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:27,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:27,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:27,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:27,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:27,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:27,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:27,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:27,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:27,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:27,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-26 19:55:27,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:27,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:27,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:27,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:27,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:27,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:27,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:27,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:27,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:27,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:27,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:27,933 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-26 19:55:27,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [932599777] [2020-10-26 19:55:27,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:55:27,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-26 19:55:27,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949934863] [2020-10-26 19:55:27,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 19:55:27,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:27,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 19:55:27,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-26 19:55:27,936 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand 11 states. [2020-10-26 19:55:28,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:28,828 INFO L93 Difference]: Finished difference Result 121 states and 140 transitions. [2020-10-26 19:55:28,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 19:55:28,830 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 66 [2020-10-26 19:55:28,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:28,831 INFO L225 Difference]: With dead ends: 121 [2020-10-26 19:55:28,832 INFO L226 Difference]: Without dead ends: 84 [2020-10-26 19:55:28,836 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2020-10-26 19:55:28,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-26 19:55:28,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 74. [2020-10-26 19:55:28,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-26 19:55:28,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 86 transitions. [2020-10-26 19:55:28,869 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 86 transitions. Word has length 66 [2020-10-26 19:55:28,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:28,869 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 86 transitions. [2020-10-26 19:55:28,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 19:55:28,869 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 86 transitions. [2020-10-26 19:55:28,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-26 19:55:28,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:28,875 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:55:28,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 19:55:28,875 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:28,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:28,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1173081560, now seen corresponding path program 4 times [2020-10-26 19:55:28,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:28,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55202721] [2020-10-26 19:55:28,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:28,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:29,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:29,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 19:55:29,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:29,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 764 [2020-10-26 19:55:29,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:29,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-26 19:55:29,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 19:55:29,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 19:55:29,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:29,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:29,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:29,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:29,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:29,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:29,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:55:29,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:29,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:29,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:29,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:29,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:29,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:55:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:29,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:29,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:29,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:29,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:29,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:29,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:29,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:29,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:29,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:29,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:29,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:55:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:29,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:29,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:29,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:29,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:29,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:55:29,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:29,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:29,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:29,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:29,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:29,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:55:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:29,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:29,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:29,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:29,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:29,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:29,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:29,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:29,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:29,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:29,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:29,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:55:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:29,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:29,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:29,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:29,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:29,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:29,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:29,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:29,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:29,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:29,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:29,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:55:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:29,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:29,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:29,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:29,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:29,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:29,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:29,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:29,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:29,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:29,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:29,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:55:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:29,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:29,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:29,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:29,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:29,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:29,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:29,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:29,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:29,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:29,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:29,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 19:55:29,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:29,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:29,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:29,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:29,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:29,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 19:55:29,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:29,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:29,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:29,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:29,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:29,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-26 19:55:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:29,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:29,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:29,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:29,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:29,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:29,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:29,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:29,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:29,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:29,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:30,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-26 19:55:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:30,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:30,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:30,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:30,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:30,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:30,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:30,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:30,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:30,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:30,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:30,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-26 19:55:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:30,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:30,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:30,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:30,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:30,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:30,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:30,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:30,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:30,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:30,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:30,043 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 6 proven. 31 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-10-26 19:55:30,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55202721] [2020-10-26 19:55:30,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:55:30,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-26 19:55:30,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310692510] [2020-10-26 19:55:30,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-26 19:55:30,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:30,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-26 19:55:30,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-26 19:55:30,047 INFO L87 Difference]: Start difference. First operand 74 states and 86 transitions. Second operand 14 states. [2020-10-26 19:55:32,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:32,533 INFO L93 Difference]: Finished difference Result 305 states and 432 transitions. [2020-10-26 19:55:32,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-26 19:55:32,533 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 86 [2020-10-26 19:55:32,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:32,537 INFO L225 Difference]: With dead ends: 305 [2020-10-26 19:55:32,537 INFO L226 Difference]: Without dead ends: 302 [2020-10-26 19:55:32,540 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=288, Invalid=1604, Unknown=0, NotChecked=0, Total=1892 [2020-10-26 19:55:32,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-10-26 19:55:32,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 104. [2020-10-26 19:55:32,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-26 19:55:32,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2020-10-26 19:55:32,599 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 126 transitions. Word has length 86 [2020-10-26 19:55:32,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:32,601 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 126 transitions. [2020-10-26 19:55:32,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-26 19:55:32,601 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 126 transitions. [2020-10-26 19:55:32,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-26 19:55:32,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:32,608 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:55:32,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 19:55:32,608 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:32,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:32,609 INFO L82 PathProgramCache]: Analyzing trace with hash 755191142, now seen corresponding path program 1 times [2020-10-26 19:55:32,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:32,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1290240684] [2020-10-26 19:55:32,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:32,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:32,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:33,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:33,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 19:55:33,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:33,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 643 [2020-10-26 19:55:33,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:33,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-26 19:55:33,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:55:33,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-26 19:55:33,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:33,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:33,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:33,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:33,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:33,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:33,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:33,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 19:55:33,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:33,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:33,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:33,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:33,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:33,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:55:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:33,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:33,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:33,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:33,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:33,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 19:55:33,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:33,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:33,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:33,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:33,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:33,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:55:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:33,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:33,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:33,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:33,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:33,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:33,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:33,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:33,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:33,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:33,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:33,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:55:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:33,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:33,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:33,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:33,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:33,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 19:55:33,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:33,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:33,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:33,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:33,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:33,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:55:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:33,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:33,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:33,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:33,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:33,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:33,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:33,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:33,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:33,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:33,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:33,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:55:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:33,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:33,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:33,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:33,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:33,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:33,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:33,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:33,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:33,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:33,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:33,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:55:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:33,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:33,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:33,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:33,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:33,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:55:33,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:33,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:33,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:33,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:33,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:33,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 19:55:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:33,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:33,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:33,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:33,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:33,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:33,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:33,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:33,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:33,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-26 19:55:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:33,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:33,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:33,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:33,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:33,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:33,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:33,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:33,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:33,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:33,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:33,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-26 19:55:33,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:33,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:33,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:33,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:33,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:33,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:33,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:33,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:33,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:33,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:33,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 19:55:33,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-26 19:55:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:33,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:33,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:33,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:33,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:33,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:33,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:33,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:33,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:33,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:33,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:33,740 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 6 proven. 31 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-10-26 19:55:33,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1290240684] [2020-10-26 19:55:33,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:55:33,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-26 19:55:33,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807223427] [2020-10-26 19:55:33,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-26 19:55:33,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:33,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-26 19:55:33,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-10-26 19:55:33,743 INFO L87 Difference]: Start difference. First operand 104 states and 126 transitions. Second operand 15 states. [2020-10-26 19:55:37,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:37,307 INFO L93 Difference]: Finished difference Result 347 states and 491 transitions. [2020-10-26 19:55:37,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-26 19:55:37,308 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 86 [2020-10-26 19:55:37,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:37,312 INFO L225 Difference]: With dead ends: 347 [2020-10-26 19:55:37,312 INFO L226 Difference]: Without dead ends: 344 [2020-10-26 19:55:37,319 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 686 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=415, Invalid=2135, Unknown=0, NotChecked=0, Total=2550 [2020-10-26 19:55:37,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2020-10-26 19:55:37,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 118. [2020-10-26 19:55:37,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-26 19:55:37,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 149 transitions. [2020-10-26 19:55:37,361 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 149 transitions. Word has length 86 [2020-10-26 19:55:37,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:37,361 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 149 transitions. [2020-10-26 19:55:37,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-26 19:55:37,362 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 149 transitions. [2020-10-26 19:55:37,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-26 19:55:37,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:37,363 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:55:37,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 19:55:37,364 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:37,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:37,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1031286115, now seen corresponding path program 5 times [2020-10-26 19:55:37,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:37,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [229803435] [2020-10-26 19:55:37,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:37,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:37,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:37,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-26 19:55:37,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:37,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 606 [2020-10-26 19:55:37,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-26 19:55:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 19:55:37,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-26 19:55:38,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:38,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:38,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:38,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:38,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:38,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:38,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 19:55:38,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:38,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:38,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:38,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:38,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:38,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:55:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:38,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:38,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:38,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:38,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:38,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:38,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:38,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:38,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:38,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:38,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:38,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:55:38,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:38,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:38,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:38,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:38,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:38,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:38,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:38,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:38,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:38,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:38,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:38,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:55:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:38,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:38,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:38,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:38,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:38,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 19:55:38,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:38,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:38,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:38,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:38,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:38,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:55:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:38,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:38,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:38,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:38,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:38,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 19:55:38,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:38,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:38,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:38,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:38,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 19:55:38,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:55:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:38,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:38,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:38,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:38,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:38,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 19:55:38,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:38,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:38,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:38,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:38,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:38,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:55:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:38,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:38,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:38,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:38,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:38,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:38,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:38,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:38,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:38,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:38,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:38,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 19:55:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:38,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:38,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:38,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:38,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:38,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 19:55:38,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:38,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:38,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:38,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:38,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:38,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-26 19:55:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:38,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:38,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:38,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:38,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:38,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:38,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:38,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:38,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:38,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:38,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:38,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-26 19:55:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:38,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:38,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:38,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:38,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:38,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:38,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:38,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:38,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:38,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:38,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:38,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-26 19:55:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:38,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:38,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:38,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:38,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:38,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:38,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:38,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:38,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:38,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:38,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:38,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 19:55:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:38,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:38,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:38,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:38,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:38,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:38,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:38,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:38,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:38,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:38,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:38,494 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 8 proven. 45 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-26 19:55:38,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [229803435] [2020-10-26 19:55:38,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:55:38,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-26 19:55:38,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745005823] [2020-10-26 19:55:38,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-26 19:55:38,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:38,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-26 19:55:38,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-10-26 19:55:38,496 INFO L87 Difference]: Start difference. First operand 118 states and 149 transitions. Second operand 15 states. [2020-10-26 19:55:41,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:41,205 INFO L93 Difference]: Finished difference Result 466 states and 675 transitions. [2020-10-26 19:55:41,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-26 19:55:41,209 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 94 [2020-10-26 19:55:41,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:41,220 INFO L225 Difference]: With dead ends: 466 [2020-10-26 19:55:41,221 INFO L226 Difference]: Without dead ends: 463 [2020-10-26 19:55:41,224 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=291, Invalid=1779, Unknown=0, NotChecked=0, Total=2070 [2020-10-26 19:55:41,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2020-10-26 19:55:41,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 189. [2020-10-26 19:55:41,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-26 19:55:41,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 249 transitions. [2020-10-26 19:55:41,274 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 249 transitions. Word has length 94 [2020-10-26 19:55:41,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:41,274 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 249 transitions. [2020-10-26 19:55:41,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-26 19:55:41,275 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 249 transitions. [2020-10-26 19:55:41,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-26 19:55:41,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:41,276 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:55:41,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 19:55:41,277 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:41,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:41,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1324519135, now seen corresponding path program 1 times [2020-10-26 19:55:41,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:41,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925353034] [2020-10-26 19:55:41,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:41,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:42,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:42,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-26 19:55:42,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:42,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 739 [2020-10-26 19:55:42,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:42,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-26 19:55:42,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:55:42,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 19:55:42,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:42,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:42,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:42,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:42,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:42,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:42,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:55:42,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:42,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:42,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:42,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:42,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:42,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:55:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:42,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:42,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:42,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:42,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:42,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 19:55:42,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:42,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:42,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:42,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:42,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:42,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:55:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:42,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:42,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:42,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:42,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:42,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:42,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:42,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:42,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:42,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:42,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:42,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:55:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:42,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:42,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:42,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:42,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:42,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:42,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:42,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:42,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:42,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:42,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:42,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:55:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:42,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:42,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:42,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:42,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:42,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:42,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:42,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:42,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:42,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:42,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:42,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:55:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:42,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:42,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:42,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:42,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:42,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:42,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:42,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:42,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:42,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:42,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:42,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:55:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:42,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:42,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:42,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:42,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:42,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:42,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:42,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:42,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:42,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:42,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:42,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 19:55:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:42,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:42,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:42,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:42,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:42,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:42,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:42,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:42,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:42,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:42,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:42,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-26 19:55:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:42,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:42,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:42,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:42,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:42,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:42,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:42,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:42,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:42,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:42,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:42,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-26 19:55:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:42,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:42,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:42,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:42,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:42,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:42,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:42,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:42,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:42,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:42,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:42,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-26 19:55:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:42,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:42,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:42,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:42,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:42,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:42,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:42,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:42,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:42,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:42,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:42,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 19:55:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:42,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:42,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:42,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:42,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:42,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:42,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:42,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:42,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:42,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:42,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:42,544 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 8 proven. 45 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-26 19:55:42,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1925353034] [2020-10-26 19:55:42,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:55:42,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-26 19:55:42,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966295792] [2020-10-26 19:55:42,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-26 19:55:42,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:42,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-26 19:55:42,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2020-10-26 19:55:42,547 INFO L87 Difference]: Start difference. First operand 189 states and 249 transitions. Second operand 16 states. [2020-10-26 19:55:44,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:44,522 INFO L93 Difference]: Finished difference Result 428 states and 621 transitions. [2020-10-26 19:55:44,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-26 19:55:44,522 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 94 [2020-10-26 19:55:44,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:44,527 INFO L225 Difference]: With dead ends: 428 [2020-10-26 19:55:44,527 INFO L226 Difference]: Without dead ends: 425 [2020-10-26 19:55:44,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=172, Invalid=950, Unknown=0, NotChecked=0, Total=1122 [2020-10-26 19:55:44,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-10-26 19:55:44,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 130. [2020-10-26 19:55:44,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-26 19:55:44,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 162 transitions. [2020-10-26 19:55:44,559 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 162 transitions. Word has length 94 [2020-10-26 19:55:44,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:44,560 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 162 transitions. [2020-10-26 19:55:44,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-26 19:55:44,560 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 162 transitions. [2020-10-26 19:55:44,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-26 19:55:44,562 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:44,562 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:55:44,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 19:55:44,562 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:44,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:44,563 INFO L82 PathProgramCache]: Analyzing trace with hash -227099234, now seen corresponding path program 6 times [2020-10-26 19:55:44,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:44,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [762227869] [2020-10-26 19:55:44,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:44,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:45,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:45,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-26 19:55:45,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:45,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 646 [2020-10-26 19:55:45,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:45,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-26 19:55:45,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 19:55:45,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-26 19:55:45,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:45,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:45,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:45,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:45,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:45,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:45,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 19:55:45,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:45,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:45,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:45,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:45,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:45,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:55:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:45,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:45,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:45,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:45,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:45,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:45,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:45,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:45,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:45,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:45,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:45,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:55:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:45,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:45,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:45,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:45,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:45,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:45,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:45,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:45,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:45,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:45,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:45,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:55:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:45,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:45,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:45,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:45,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:45,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:45,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:45,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:45,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:45,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:45,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:45,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:55:45,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:45,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:45,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:45,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:45,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:45,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:45,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:45,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:45,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:45,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:45,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:45,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:55:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:45,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:45,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:45,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:45,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:45,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:45,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:45,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:45,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:45,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:45,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:45,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:55:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:45,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:45,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:45,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:45,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:45,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:45,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:45,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:45,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:45,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:45,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:45,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 19:55:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:45,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:45,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:45,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:45,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:45,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:45,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:45,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:45,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:45,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:45,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:45,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-26 19:55:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:45,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:45,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:45,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:45,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:45,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:45,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:45,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:45,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:45,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:45,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:45,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-26 19:55:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:45,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:45,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:45,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:45,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:45,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:45,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:45,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:45,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:45,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:45,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:45,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-26 19:55:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:45,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:45,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:45,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:45,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:45,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:45,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:45,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:45,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:45,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:45,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:45,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 19:55:45,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:45,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:45,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:45,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:45,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:45,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:45,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:45,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:45,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:45,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:45,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:45,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-26 19:55:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:45,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:45,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:45,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:45,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:45,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:45,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:45,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:45,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:45,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:45,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:45,639 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 10 proven. 63 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-26 19:55:45,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [762227869] [2020-10-26 19:55:45,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:55:45,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-26 19:55:45,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029591661] [2020-10-26 19:55:45,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-26 19:55:45,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:45,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-26 19:55:45,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-10-26 19:55:45,642 INFO L87 Difference]: Start difference. First operand 130 states and 162 transitions. Second operand 15 states. [2020-10-26 19:55:48,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:48,589 INFO L93 Difference]: Finished difference Result 482 states and 692 transitions. [2020-10-26 19:55:48,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-26 19:55:48,590 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 102 [2020-10-26 19:55:48,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:48,594 INFO L225 Difference]: With dead ends: 482 [2020-10-26 19:55:48,594 INFO L226 Difference]: Without dead ends: 479 [2020-10-26 19:55:48,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=298, Invalid=1958, Unknown=0, NotChecked=0, Total=2256 [2020-10-26 19:55:48,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2020-10-26 19:55:48,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 205. [2020-10-26 19:55:48,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-26 19:55:48,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 267 transitions. [2020-10-26 19:55:48,647 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 267 transitions. Word has length 102 [2020-10-26 19:55:48,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:48,647 INFO L481 AbstractCegarLoop]: Abstraction has 205 states and 267 transitions. [2020-10-26 19:55:48,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-26 19:55:48,648 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 267 transitions. [2020-10-26 19:55:48,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-26 19:55:48,650 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:48,650 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:55:48,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 19:55:48,651 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:48,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:48,651 INFO L82 PathProgramCache]: Analyzing trace with hash -708179492, now seen corresponding path program 1 times [2020-10-26 19:55:48,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:48,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [871453999] [2020-10-26 19:55:48,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:48,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:48,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:49,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:49,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-26 19:55:49,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:49,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 593 [2020-10-26 19:55:49,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:49,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-26 19:55:49,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:55:49,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-26 19:55:49,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:49,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:49,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:49,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:49,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:49,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:49,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:49,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:55:49,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:49,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:49,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:49,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:49,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:49,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:55:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:49,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:49,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:49,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:49,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:49,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:55:49,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:49,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:49,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:49,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:49,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:49,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:55:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:49,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:49,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:49,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:49,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:49,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:49,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:49,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:49,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:49,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:49,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:49,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:55:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:49,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:49,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:49,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:49,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:49,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:49,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:49,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:49,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:49,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:49,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:49,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:55:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:49,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:49,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:49,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:49,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:49,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:49,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:49,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:49,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:49,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:49,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:49,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:55:49,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:49,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:49,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:49,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:49,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:49,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:49,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:49,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:49,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:49,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:49,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:49,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:55:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:49,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:49,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:49,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:49,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:49,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:49,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:49,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:49,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:49,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:49,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:49,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 19:55:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:49,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:49,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:49,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:49,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:49,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:49,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:49,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:49,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:49,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:49,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:49,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-26 19:55:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:49,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:49,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:49,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:49,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:49,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:49,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:49,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:49,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:49,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:49,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:49,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-26 19:55:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:49,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:49,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:49,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:49,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:49,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:49,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:49,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:49,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:49,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:49,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:49,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-26 19:55:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:49,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:49,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:49,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:49,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:49,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:49,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:49,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:49,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:49,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:49,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:49,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 19:55:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:49,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:49,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:49,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:49,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:49,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:49,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:49,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:49,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:49,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:49,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:49,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-26 19:55:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:49,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:49,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:49,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:49,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:49,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:49,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:49,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:49,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:49,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:49,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:49,668 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 10 proven. 63 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-26 19:55:49,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [871453999] [2020-10-26 19:55:49,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:55:49,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-26 19:55:49,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959800306] [2020-10-26 19:55:49,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-26 19:55:49,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:49,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-26 19:55:49,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2020-10-26 19:55:49,670 INFO L87 Difference]: Start difference. First operand 205 states and 267 transitions. Second operand 16 states. [2020-10-26 19:55:51,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:51,538 INFO L93 Difference]: Finished difference Result 434 states and 624 transitions. [2020-10-26 19:55:51,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-26 19:55:51,541 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 102 [2020-10-26 19:55:51,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:51,544 INFO L225 Difference]: With dead ends: 434 [2020-10-26 19:55:51,544 INFO L226 Difference]: Without dead ends: 431 [2020-10-26 19:55:51,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=167, Invalid=1023, Unknown=0, NotChecked=0, Total=1190 [2020-10-26 19:55:51,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2020-10-26 19:55:51,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 138. [2020-10-26 19:55:51,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-26 19:55:51,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 170 transitions. [2020-10-26 19:55:51,577 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 170 transitions. Word has length 102 [2020-10-26 19:55:51,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:51,578 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 170 transitions. [2020-10-26 19:55:51,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-26 19:55:51,578 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 170 transitions. [2020-10-26 19:55:51,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-26 19:55:51,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:51,579 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 19:55:51,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 19:55:51,580 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:51,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:51,580 INFO L82 PathProgramCache]: Analyzing trace with hash -151281482, now seen corresponding path program 2 times [2020-10-26 19:55:51,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:51,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1401503420] [2020-10-26 19:55:51,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:51,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:51,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:52,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:52,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 19:55:52,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:55:52,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1189 [2020-10-26 19:55:52,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:52,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-26 19:55:52,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:55:52,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-26 19:55:52,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:53,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:53,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:53,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:53,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:53,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:53,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:53,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:53,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:53,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:53,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:53,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:53,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:55:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:53,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:53,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:53,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:53,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:53,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:53,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:53,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:53,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:53,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:53,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:53,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:55:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:53,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:53,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:53,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:53,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:53,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:53,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:53,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:53,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:53,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:53,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:53,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:55:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:53,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:53,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:53,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:53,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:53,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:53,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:53,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:53,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:53,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:53,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:53,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:55:53,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:53,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:53,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:53,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:53,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:53,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:53,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:53,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:53,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:53,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:53,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:53,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:55:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:53,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:53,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:53,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:53,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:53,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:53,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:53,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:53,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:53,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:53,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:53,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:55:53,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:53,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:53,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:53,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:53,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:53,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:53,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:53,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:53,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:53,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:53,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:53,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 19:55:53,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:53,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:53,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:53,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:53,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:53,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:53,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:53,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:53,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:53,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:53,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:53,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-26 19:55:53,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:53,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:53,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:53,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:53,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:53,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:53,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:53,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:53,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:53,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:53,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:53,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-26 19:55:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:53,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:53,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:53,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:53,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:53,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:53,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:53,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:53,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:53,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:53,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:53,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 19:55:53,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:53,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:53,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:53,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:53,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:53,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:53,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:53,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:53,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:53,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:53,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:53,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-26 19:55:53,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:53,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:53,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:53,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:53,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:53,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:53,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:53,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:53,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:53,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:53,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:53,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 19:55:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:53,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:53,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:53,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:53,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:53,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:53,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:53,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:53,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:53,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:53,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:53,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-26 19:55:53,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:53,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:53,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:53,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:53,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:53,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:53,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:53,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:53,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:53,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:53,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:53,211 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 6 proven. 54 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-10-26 19:55:53,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1401503420] [2020-10-26 19:55:53,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:55:53,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-26 19:55:53,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546931239] [2020-10-26 19:55:53,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-26 19:55:53,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:53,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-26 19:55:53,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-26 19:55:53,214 INFO L87 Difference]: Start difference. First operand 138 states and 170 transitions. Second operand 16 states. [2020-10-26 19:55:54,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:54,695 INFO L93 Difference]: Finished difference Result 259 states and 358 transitions. [2020-10-26 19:55:54,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-26 19:55:54,696 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 106 [2020-10-26 19:55:54,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:54,699 INFO L225 Difference]: With dead ends: 259 [2020-10-26 19:55:54,699 INFO L226 Difference]: Without dead ends: 256 [2020-10-26 19:55:54,700 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=169, Invalid=761, Unknown=0, NotChecked=0, Total=930 [2020-10-26 19:55:54,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-10-26 19:55:54,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 98. [2020-10-26 19:55:54,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-26 19:55:54,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2020-10-26 19:55:54,721 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 106 [2020-10-26 19:55:54,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:54,721 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2020-10-26 19:55:54,721 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-26 19:55:54,722 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2020-10-26 19:55:54,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-26 19:55:54,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:54,723 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:55:54,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 19:55:54,723 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:54,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:54,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1940579033, now seen corresponding path program 7 times [2020-10-26 19:55:54,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:54,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [495831966] [2020-10-26 19:55:54,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:54,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:55,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:55,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:55,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-26 19:55:55,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:55:55,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1127 [2020-10-26 19:55:55,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:55,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-26 19:55:55,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 19:55:55,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-26 19:55:55,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:56,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:56,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:56,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:56,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:56,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:56,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:56,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:56,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:56,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:56,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:56,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:56,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:55:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:56,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:56,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:56,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:56,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:56,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:55:56,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 19:55:56,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:56,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:56,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:56,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:56,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:56,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:55:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:56,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:56,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:56,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:56,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:56,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:56,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:56,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:56,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:56,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:56,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:56,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:55:56,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:56,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:56,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:56,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:56,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:56,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:56,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:56,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:56,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:56,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:56,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:56,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:55:56,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:56,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:56,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:56,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:56,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:56,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:56,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:56,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:56,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:56,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:56,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:56,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:55:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:56,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:56,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:56,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:56,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:56,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:56,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:56,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:56,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:56,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:56,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:56,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:55:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:56,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:56,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:56,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:56,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:56,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:56,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:56,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:56,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:56,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:56,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:56,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 19:55:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:56,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:56,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:56,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:56,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:56,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:56,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:56,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:56,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:56,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:56,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:56,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-26 19:55:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:56,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:56,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:56,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:56,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:56,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:56,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:56,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:56,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:56,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:56,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:56,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-26 19:55:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:56,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:56,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:56,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:56,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:56,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:56,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:56,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:56,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:56,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:56,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:56,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-26 19:55:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:56,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:56,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:56,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:56,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:56,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:56,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:56,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:56,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:56,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:56,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:56,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 19:55:56,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:56,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:56,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:56,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:56,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:56,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:56,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:56,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:56,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:56,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:56,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:56,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-26 19:55:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:56,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:56,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:56,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:56,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:56,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:56,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:56,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:56,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:56,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:56,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:56,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 19:55:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:56,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:56,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:56,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:56,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:56,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:56,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:56,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:56,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:56,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:56,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:56,397 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 84 proven. 13 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-10-26 19:55:56,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [495831966] [2020-10-26 19:55:56,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:55:56,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-26 19:55:56,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871117827] [2020-10-26 19:55:56,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-26 19:55:56,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:56,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-26 19:55:56,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2020-10-26 19:55:56,399 INFO L87 Difference]: Start difference. First operand 98 states and 110 transitions. Second operand 15 states. [2020-10-26 19:55:57,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:55:57,457 INFO L93 Difference]: Finished difference Result 180 states and 205 transitions. [2020-10-26 19:55:57,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-26 19:55:57,457 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 110 [2020-10-26 19:55:57,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:55:57,459 INFO L225 Difference]: With dead ends: 180 [2020-10-26 19:55:57,459 INFO L226 Difference]: Without dead ends: 119 [2020-10-26 19:55:57,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=178, Invalid=634, Unknown=0, NotChecked=0, Total=812 [2020-10-26 19:55:57,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-26 19:55:57,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 109. [2020-10-26 19:55:57,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-26 19:55:57,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2020-10-26 19:55:57,486 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 110 [2020-10-26 19:55:57,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:55:57,487 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2020-10-26 19:55:57,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-26 19:55:57,487 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2020-10-26 19:55:57,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-26 19:55:57,488 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:55:57,488 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 7, 7, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 19:55:57,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-26 19:55:57,489 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:55:57,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:55:57,489 INFO L82 PathProgramCache]: Analyzing trace with hash -843954647, now seen corresponding path program 8 times [2020-10-26 19:55:57,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:55:57,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313225338] [2020-10-26 19:55:57,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:55:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:57,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:58,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:58,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-26 19:55:58,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:58,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 867 [2020-10-26 19:55:58,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:58,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-26 19:55:58,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 19:55:58,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-26 19:55:58,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:58,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:55:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:58,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:58,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:58,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:58,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:58,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:55:58,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:58,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:58,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:58,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:58,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:58,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:55:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:58,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:58,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:58,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:58,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:58,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:55:58,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:58,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:55:58,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:58,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:55:58,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:58,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:55:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:58,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:58,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:58,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:58,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:58,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:58,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:58,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:58,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:55:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:58,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:58,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:58,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:58,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:58,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:58,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:58,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:58,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:58,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:58,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:58,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:55:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:58,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:58,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:58,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:58,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:58,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:58,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:58,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:58,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:58,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:58,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:58,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:55:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:58,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:58,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:58,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:58,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:58,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:58,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:58,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:58,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:58,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:58,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:58,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:55:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:58,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:58,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:58,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:58,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:58,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:58,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:58,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:58,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:58,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:58,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:58,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 19:55:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:58,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:58,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:58,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:58,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:58,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:58,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:58,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:58,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:58,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:58,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:58,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-26 19:55:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:58,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:58,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:58,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:58,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:58,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:58,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:58,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:58,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:58,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:58,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:58,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-26 19:55:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:58,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:58,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:58,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:58,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:58,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:58,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:58,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:58,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:58,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:58,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:58,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 19:55:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:58,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:58,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:58,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:55:58,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:58,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:58,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:55:58,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:58,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-26 19:55:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:58,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:58,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:58,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:58,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:58,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:58,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:58,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:58,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:58,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 19:55:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:58,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:58,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:58,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:58,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:58,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:55:58,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:58,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:58,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:58,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:58,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:58,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-26 19:55:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:58,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:58,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:58,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:58,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:58,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:58,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:58,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:58,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:58,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:58,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:58,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-26 19:55:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:58,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:58,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:58,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:58,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:58,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:58,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:58,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:58,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:58,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:58,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:58,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-26 19:55:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:58,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:58,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:58,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:58,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:58,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:58,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:58,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:58,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:58,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:58,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:58,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-26 19:55:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:55:58,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:55:58,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:55:58,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:55:58,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:55:58,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:55:58,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:55:58,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:55:58,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:55:58,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:55:58,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:55:58,882 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 12 proven. 108 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2020-10-26 19:55:58,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313225338] [2020-10-26 19:55:58,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:55:58,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-26 19:55:58,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839024833] [2020-10-26 19:55:58,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-26 19:55:58,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:55:58,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-26 19:55:58,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2020-10-26 19:55:58,892 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand 18 states. [2020-10-26 19:56:09,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:56:09,171 INFO L93 Difference]: Finished difference Result 964 states and 1429 transitions. [2020-10-26 19:56:09,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2020-10-26 19:56:09,178 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 130 [2020-10-26 19:56:09,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:56:09,185 INFO L225 Difference]: With dead ends: 964 [2020-10-26 19:56:09,185 INFO L226 Difference]: Without dead ends: 961 [2020-10-26 19:56:09,193 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7973 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=2116, Invalid=18190, Unknown=0, NotChecked=0, Total=20306 [2020-10-26 19:56:09,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2020-10-26 19:56:09,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 151. [2020-10-26 19:56:09,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-10-26 19:56:09,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 182 transitions. [2020-10-26 19:56:09,249 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 182 transitions. Word has length 130 [2020-10-26 19:56:09,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:56:09,250 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 182 transitions. [2020-10-26 19:56:09,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-26 19:56:09,250 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 182 transitions. [2020-10-26 19:56:09,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-26 19:56:09,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:56:09,252 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 7, 7, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 19:56:09,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-26 19:56:09,253 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:56:09,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:56:09,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1064503143, now seen corresponding path program 3 times [2020-10-26 19:56:09,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:56:09,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [67667146] [2020-10-26 19:56:09,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:56:09,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:09,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:10,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:10,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-26 19:56:10,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:10,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 940 [2020-10-26 19:56:10,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:10,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-26 19:56:10,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:56:10,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-26 19:56:10,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:10,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:56:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:10,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:10,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:10,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:10,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:10,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 19:56:10,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:10,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:56:10,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:10,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:56:10,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:10,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:56:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:10,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:10,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:10,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:10,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:10,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:56:10,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:10,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:10,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:10,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:10,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:10,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:56:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:10,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:10,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:10,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:10,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:10,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:56:10,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:10,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:10,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:10,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:10,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:10,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:56:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:10,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:10,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:10,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:10,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:10,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:10,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:10,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:10,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:10,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:10,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:10,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:56:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:10,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:10,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:10,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:10,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:10,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:56:10,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:10,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:10,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:10,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:10,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:10,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:56:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:10,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:10,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:10,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:10,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:10,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:56:10,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:10,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:10,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:10,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:10,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:10,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:56:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:10,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:10,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:10,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:10,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:10,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:56:10,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:10,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:10,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:10,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:10,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:10,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 19:56:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:10,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:10,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:10,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:10,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:10,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:56:10,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:10,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:10,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:10,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:10,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 19:56:10,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-26 19:56:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:10,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:10,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:10,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:10,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:10,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:56:10,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:10,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:10,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:10,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:10,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:10,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-26 19:56:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:10,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:10,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:10,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:10,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:10,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:56:10,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:10,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:10,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:10,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:10,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:10,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 19:56:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:10,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:10,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:10,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:10,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:10,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:56:10,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:10,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:10,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:10,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:10,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:10,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-26 19:56:10,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:10,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:10,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:10,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:10,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:10,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:56:10,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:10,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:10,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:10,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:10,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:10,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 19:56:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:10,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:10,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:10,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:10,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:10,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:56:10,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:10,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:10,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:10,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:10,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:10,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-26 19:56:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:10,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:10,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:10,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:10,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:10,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:56:10,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:10,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:10,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:10,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:10,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:10,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-26 19:56:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:10,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:10,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:10,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:10,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:10,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:10,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:10,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:10,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:10,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:10,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:10,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-26 19:56:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:10,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:10,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:10,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:10,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:10,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:56:10,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:10,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:10,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:10,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:10,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:10,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-26 19:56:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:10,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:10,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:10,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:10,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:10,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:56:10,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:10,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:10,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:10,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:10,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:11,021 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 12 proven. 108 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2020-10-26 19:56:11,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [67667146] [2020-10-26 19:56:11,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:56:11,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-26 19:56:11,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958091337] [2020-10-26 19:56:11,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-26 19:56:11,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:56:11,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-26 19:56:11,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2020-10-26 19:56:11,025 INFO L87 Difference]: Start difference. First operand 151 states and 182 transitions. Second operand 19 states. [2020-10-26 19:56:14,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:56:14,109 INFO L93 Difference]: Finished difference Result 301 states and 412 transitions. [2020-10-26 19:56:14,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-26 19:56:14,109 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 130 [2020-10-26 19:56:14,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:56:14,111 INFO L225 Difference]: With dead ends: 301 [2020-10-26 19:56:14,111 INFO L226 Difference]: Without dead ends: 298 [2020-10-26 19:56:14,112 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=282, Invalid=1698, Unknown=0, NotChecked=0, Total=1980 [2020-10-26 19:56:14,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-26 19:56:14,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 117. [2020-10-26 19:56:14,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-26 19:56:14,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 135 transitions. [2020-10-26 19:56:14,151 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 135 transitions. Word has length 130 [2020-10-26 19:56:14,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:56:14,152 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 135 transitions. [2020-10-26 19:56:14,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-26 19:56:14,152 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 135 transitions. [2020-10-26 19:56:14,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-26 19:56:14,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:56:14,155 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 19:56:14,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-26 19:56:14,156 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:56:14,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:56:14,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1073303452, now seen corresponding path program 9 times [2020-10-26 19:56:14,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:56:14,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500261800] [2020-10-26 19:56:14,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:56:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:14,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:15,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:15,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-26 19:56:15,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:15,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 972 [2020-10-26 19:56:15,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:15,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-26 19:56:15,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 19:56:15,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-26 19:56:15,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:15,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:56:15,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:15,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:15,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:15,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:15,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:15,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:56:15,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:15,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:56:15,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:15,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:56:15,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:15,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:56:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:15,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:15,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:15,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:15,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:15,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:15,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:15,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:56:15,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:15,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:56:15,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:15,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:56:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:15,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:15,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:15,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:15,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:15,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:15,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:15,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:15,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:15,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:15,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:15,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:56:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:15,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:15,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:15,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:15,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:15,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:15,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:15,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:15,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:15,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:15,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:15,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:56:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:15,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:15,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:15,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:15,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:15,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:15,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:15,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:15,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:15,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:15,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:15,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:56:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:15,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:15,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:15,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:15,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:15,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:15,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:15,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:15,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:15,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:15,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:15,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:56:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:15,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:15,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:15,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:15,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:15,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:15,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:15,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:15,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:15,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:15,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:15,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 19:56:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:15,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:15,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:15,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:15,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:15,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:15,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:15,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:15,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:15,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:15,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:15,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-26 19:56:15,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:15,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:15,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:15,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:15,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:15,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:15,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:15,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:15,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:15,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:15,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:15,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-26 19:56:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:15,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:15,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:15,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:15,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:15,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:15,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:15,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:15,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:15,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:15,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:15,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 19:56:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:15,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:15,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:15,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:15,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:15,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:56:15,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:15,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:15,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:15,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:15,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:15,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-26 19:56:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:15,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:15,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:15,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:15,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:15,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:56:15,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:15,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:15,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:15,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:15,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:15,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 19:56:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:15,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:15,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:15,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:15,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:15,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:15,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:15,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:15,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:15,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:15,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:15,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-26 19:56:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:15,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:15,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:15,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:15,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:15,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:15,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:15,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:15,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:15,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:15,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:15,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-26 19:56:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:15,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:15,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:15,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:15,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:15,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:15,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:15,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:15,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:15,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:15,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:15,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-26 19:56:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:15,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:15,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:15,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:15,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:15,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:15,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:15,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:15,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:15,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:15,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:15,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-26 19:56:15,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:15,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:15,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:15,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:15,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:15,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:15,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:15,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:15,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:15,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:15,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:15,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-26 19:56:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:15,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:15,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:15,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:15,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:15,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:15,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:15,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:15,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:15,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:15,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:15,727 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 14 proven. 134 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2020-10-26 19:56:15,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500261800] [2020-10-26 19:56:15,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:56:15,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-26 19:56:15,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203842854] [2020-10-26 19:56:15,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-26 19:56:15,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:56:15,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-26 19:56:15,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2020-10-26 19:56:15,730 INFO L87 Difference]: Start difference. First operand 117 states and 135 transitions. Second operand 19 states. [2020-10-26 19:56:27,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:56:27,719 INFO L93 Difference]: Finished difference Result 998 states and 1477 transitions. [2020-10-26 19:56:27,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2020-10-26 19:56:27,720 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 138 [2020-10-26 19:56:27,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:56:27,727 INFO L225 Difference]: With dead ends: 998 [2020-10-26 19:56:27,727 INFO L226 Difference]: Without dead ends: 995 [2020-10-26 19:56:27,735 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8320 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=2133, Invalid=19037, Unknown=0, NotChecked=0, Total=21170 [2020-10-26 19:56:27,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2020-10-26 19:56:27,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 163. [2020-10-26 19:56:27,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-10-26 19:56:27,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 195 transitions. [2020-10-26 19:56:27,797 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 195 transitions. Word has length 138 [2020-10-26 19:56:27,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:56:27,797 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 195 transitions. [2020-10-26 19:56:27,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-26 19:56:27,798 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 195 transitions. [2020-10-26 19:56:27,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-26 19:56:27,799 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:56:27,800 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 19:56:27,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-26 19:56:27,800 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:56:27,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:56:27,801 INFO L82 PathProgramCache]: Analyzing trace with hash -996402654, now seen corresponding path program 2 times [2020-10-26 19:56:27,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:56:27,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1427822966] [2020-10-26 19:56:27,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:56:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:27,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:28,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:28,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-26 19:56:28,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:28,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 988 [2020-10-26 19:56:28,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:28,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-26 19:56:28,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:56:28,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-26 19:56:28,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:29,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:56:29,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:29,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:29,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:29,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:29,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:29,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:56:29,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:29,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:56:29,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:29,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:56:29,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:29,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:56:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:29,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:29,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:29,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:29,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:29,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 19:56:29,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:29,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:29,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:29,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:29,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:29,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:56:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:29,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:29,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:29,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:29,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:29,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:29,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:29,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:29,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:29,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:29,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:29,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:56:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:29,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:29,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:29,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:29,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:29,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:29,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:29,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:29,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:29,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:29,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:29,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:56:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:29,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:29,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:29,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:29,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:29,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:56:29,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:29,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:29,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:29,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:29,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 19:56:29,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:56:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:29,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:29,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:29,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:29,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:29,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:56:29,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:29,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:29,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:29,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:29,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:29,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:56:29,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:29,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:29,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:29,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:29,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:29,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:29,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:29,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:29,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:29,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:29,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:29,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 19:56:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:29,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:29,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:29,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:29,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:29,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:56:29,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:29,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:29,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:29,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:29,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:29,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-26 19:56:29,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:29,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:29,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:29,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:29,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:29,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:56:29,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:29,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:29,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:29,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:29,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:29,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-26 19:56:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:29,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:29,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:29,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:29,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:29,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:56:29,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:29,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:29,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:29,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:29,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:29,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 19:56:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:29,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:29,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:29,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:29,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:29,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:56:29,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:29,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:29,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:29,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:29,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:29,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-26 19:56:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:29,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:29,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:29,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:29,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:29,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:29,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:29,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:29,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:29,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:29,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:29,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 19:56:29,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:29,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:29,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:29,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:29,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:29,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:29,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:29,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:29,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:29,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:29,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:29,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-26 19:56:29,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:29,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:29,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:29,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:29,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:29,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:29,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:29,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:29,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:29,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:29,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:29,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-26 19:56:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:29,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:29,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:29,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:29,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:29,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 19:56:29,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:29,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:29,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:29,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:29,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:29,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-26 19:56:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:29,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:29,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:29,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:29,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:29,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:29,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:29,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:29,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:29,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:29,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:29,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-26 19:56:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:29,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:29,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:29,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:29,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:29,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:29,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:29,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:29,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:29,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:29,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 19:56:29,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-26 19:56:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:29,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:29,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:29,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:29,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:29,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:29,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:29,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:29,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:29,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:29,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 19:56:29,576 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 14 proven. 134 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2020-10-26 19:56:29,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1427822966] [2020-10-26 19:56:29,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:56:29,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-26 19:56:29,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938420964] [2020-10-26 19:56:29,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-26 19:56:29,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:56:29,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-26 19:56:29,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2020-10-26 19:56:29,581 INFO L87 Difference]: Start difference. First operand 163 states and 195 transitions. Second operand 20 states. [2020-10-26 19:56:33,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:56:33,006 INFO L93 Difference]: Finished difference Result 310 states and 420 transitions. [2020-10-26 19:56:33,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-26 19:56:33,007 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 138 [2020-10-26 19:56:33,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:56:33,010 INFO L225 Difference]: With dead ends: 310 [2020-10-26 19:56:33,010 INFO L226 Difference]: Without dead ends: 307 [2020-10-26 19:56:33,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=275, Invalid=1795, Unknown=0, NotChecked=0, Total=2070 [2020-10-26 19:56:33,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-10-26 19:56:33,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 125. [2020-10-26 19:56:33,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-26 19:56:33,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 143 transitions. [2020-10-26 19:56:33,051 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 143 transitions. Word has length 138 [2020-10-26 19:56:33,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:56:33,052 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 143 transitions. [2020-10-26 19:56:33,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-26 19:56:33,052 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 143 transitions. [2020-10-26 19:56:33,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-26 19:56:33,053 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:56:33,054 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 19:56:33,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-26 19:56:33,054 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:56:33,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:56:33,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1609125985, now seen corresponding path program 10 times [2020-10-26 19:56:33,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:56:33,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478320946] [2020-10-26 19:56:33,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:56:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:33,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:34,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:34,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-26 19:56:34,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:34,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 994 [2020-10-26 19:56:34,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:34,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-26 19:56:34,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 19:56:34,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-26 19:56:34,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:34,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:56:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:34,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:34,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:34,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:34,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:34,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:56:34,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:34,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:56:34,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:34,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:56:34,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:34,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:56:34,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:34,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:34,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:34,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:34,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:34,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:34,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:34,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:56:34,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:34,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:56:34,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:34,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:56:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:34,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:34,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:34,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:34,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:34,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:34,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:34,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:34,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:34,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:34,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:34,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:56:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:34,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:34,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:34,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:34,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:34,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:34,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:34,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:34,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:34,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:34,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:34,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:56:34,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:34,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:34,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:34,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:34,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:34,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:34,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:34,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:34,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:34,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:34,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 19:56:34,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:56:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:34,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:34,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:34,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:34,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:34,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:34,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:34,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:34,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:34,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:34,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:34,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:56:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:34,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:34,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:34,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:34,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:34,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:34,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:34,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:34,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:34,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:34,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:34,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 19:56:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:34,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:34,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:34,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:34,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:34,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:34,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:34,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:34,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:34,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:34,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:34,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-26 19:56:34,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:34,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:34,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:34,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:34,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:34,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:34,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:34,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:34,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:34,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:34,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:34,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-26 19:56:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:34,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:34,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:34,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:34,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:34,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:34,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:34,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:34,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:34,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:34,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:34,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 19:56:34,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:34,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:34,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:34,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:34,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:34,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:34,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:34,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:34,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:34,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:34,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:34,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-26 19:56:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:34,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:34,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:34,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:34,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:34,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:34,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:34,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:34,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:34,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:34,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:34,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 19:56:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:34,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:34,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:34,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:34,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:34,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:34,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:34,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:34,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:34,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:34,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:34,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-26 19:56:34,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:34,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:34,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:34,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:34,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:34,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:34,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:34,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:34,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:34,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:34,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:34,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-26 19:56:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:34,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:34,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:34,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:34,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:34,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:34,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:34,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:34,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:34,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:34,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:34,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-26 19:56:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:34,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:34,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:34,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:34,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:34,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 19:56:34,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:34,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:34,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:34,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:34,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:34,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-26 19:56:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:34,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:34,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:34,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:34,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:34,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:34,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:34,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:34,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:34,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:34,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 19:56:34,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-26 19:56:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:34,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:34,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:34,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:34,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:34,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:34,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:34,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:34,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:34,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:34,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:34,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-26 19:56:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:34,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:34,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:34,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:34,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:34,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:34,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:34,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:34,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:34,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:34,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:34,650 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 16 proven. 164 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-26 19:56:34,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478320946] [2020-10-26 19:56:34,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:56:34,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-26 19:56:34,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171667787] [2020-10-26 19:56:34,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-26 19:56:34,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:56:34,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-26 19:56:34,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-10-26 19:56:34,653 INFO L87 Difference]: Start difference. First operand 125 states and 143 transitions. Second operand 19 states. [2020-10-26 19:56:48,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:56:48,148 INFO L93 Difference]: Finished difference Result 1034 states and 1526 transitions. [2020-10-26 19:56:48,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2020-10-26 19:56:48,152 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 146 [2020-10-26 19:56:48,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:56:48,156 INFO L225 Difference]: With dead ends: 1034 [2020-10-26 19:56:48,157 INFO L226 Difference]: Without dead ends: 1031 [2020-10-26 19:56:48,159 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8937 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=2205, Invalid=21051, Unknown=0, NotChecked=0, Total=23256 [2020-10-26 19:56:48,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2020-10-26 19:56:48,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 175. [2020-10-26 19:56:48,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-10-26 19:56:48,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 208 transitions. [2020-10-26 19:56:48,224 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 208 transitions. Word has length 146 [2020-10-26 19:56:48,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:56:48,225 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 208 transitions. [2020-10-26 19:56:48,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-26 19:56:48,225 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 208 transitions. [2020-10-26 19:56:48,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-26 19:56:48,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:56:48,227 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 19:56:48,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-26 19:56:48,227 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:56:48,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:56:48,228 INFO L82 PathProgramCache]: Analyzing trace with hash -721903139, now seen corresponding path program 2 times [2020-10-26 19:56:48,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:56:48,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [355987572] [2020-10-26 19:56:48,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:56:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:48,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:49,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:49,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-26 19:56:49,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:49,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 901 [2020-10-26 19:56:49,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:49,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-26 19:56:49,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:56:49,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-26 19:56:49,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:49,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:56:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:49,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:49,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:49,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:49,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:49,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:56:49,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:49,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:56:49,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:49,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:56:49,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:49,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:56:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:49,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:49,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:49,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:49,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:49,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:56:49,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:49,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:49,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:49,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:49,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:49,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:56:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:49,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:49,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:49,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:49,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:49,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:49,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:49,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:49,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:49,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:49,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:49,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:56:49,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:49,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:49,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:49,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:49,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:49,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:49,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:49,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:49,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:49,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:49,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:49,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:56:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:49,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:49,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:49,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:49,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:49,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:49,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:49,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:49,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:49,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:49,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:49,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:56:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:49,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:49,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:49,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:49,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:49,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:49,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:49,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:49,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:49,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:49,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:49,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:56:49,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:49,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:49,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:49,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:49,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:49,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:49,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:49,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:49,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:49,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:49,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:49,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 19:56:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:49,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:49,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:49,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:49,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:49,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:49,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:49,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:49,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:49,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:49,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:49,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-26 19:56:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:49,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:49,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:49,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:49,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:49,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:49,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:49,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:49,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:49,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:49,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:49,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-26 19:56:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:49,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:49,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:49,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:49,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:49,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:49,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:49,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:49,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:49,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:49,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:49,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 19:56:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:49,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:49,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:49,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:49,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:49,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:49,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:49,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:49,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:49,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:49,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:49,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-26 19:56:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:49,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:49,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:49,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:49,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:49,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:49,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:49,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:49,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:49,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:49,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:49,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 19:56:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:49,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:49,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:49,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:49,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:49,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:49,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:49,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:49,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:49,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:49,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:49,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-26 19:56:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:49,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:49,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:49,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:49,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:49,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:49,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:49,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:49,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:49,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:49,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:49,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-26 19:56:49,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:49,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:49,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:49,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:49,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:49,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:49,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:49,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:49,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:49,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:49,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:49,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-26 19:56:49,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:49,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:49,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:49,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:49,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:49,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:49,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:49,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:49,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:49,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:49,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:49,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-26 19:56:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:49,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:49,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:49,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:49,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:49,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:49,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:49,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:49,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:49,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:49,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:49,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-26 19:56:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:49,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:49,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:49,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:49,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:49,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:49,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:49,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:49,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:49,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:49,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:49,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-26 19:56:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:49,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:49,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:49,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:49,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:49,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:49,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:49,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:49,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:49,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:49,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:49,831 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 16 proven. 164 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-26 19:56:49,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [355987572] [2020-10-26 19:56:49,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:56:49,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-26 19:56:49,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044034414] [2020-10-26 19:56:49,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-26 19:56:49,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:56:49,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-26 19:56:49,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2020-10-26 19:56:49,833 INFO L87 Difference]: Start difference. First operand 175 states and 208 transitions. Second operand 20 states. [2020-10-26 19:56:53,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:56:53,528 INFO L93 Difference]: Finished difference Result 319 states and 428 transitions. [2020-10-26 19:56:53,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-26 19:56:53,529 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 146 [2020-10-26 19:56:53,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:56:53,531 INFO L225 Difference]: With dead ends: 319 [2020-10-26 19:56:53,531 INFO L226 Difference]: Without dead ends: 316 [2020-10-26 19:56:53,531 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=275, Invalid=1981, Unknown=0, NotChecked=0, Total=2256 [2020-10-26 19:56:53,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2020-10-26 19:56:53,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 133. [2020-10-26 19:56:53,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-26 19:56:53,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 151 transitions. [2020-10-26 19:56:53,562 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 151 transitions. Word has length 146 [2020-10-26 19:56:53,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:56:53,562 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 151 transitions. [2020-10-26 19:56:53,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-26 19:56:53,563 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 151 transitions. [2020-10-26 19:56:53,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-26 19:56:53,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:56:53,564 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 19:56:53,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-26 19:56:53,565 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:56:53,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:56:53,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1467827162, now seen corresponding path program 11 times [2020-10-26 19:56:53,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:56:53,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [161993191] [2020-10-26 19:56:53,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:56:53,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:53,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:54,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:55,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:55,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-26 19:56:55,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:56:55,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2047 [2020-10-26 19:56:55,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:55,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-26 19:56:55,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 19:56:55,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-26 19:56:55,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:56,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:56:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:56,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:56,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:56,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:56,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:56,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:56:56,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:56,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:56:56,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:56,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:56:56,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:56,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:56:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:56,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:56,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:56,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:56,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:56,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:56:56,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 19:56:56,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:56,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:56,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:56,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:56,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:56,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:56:56,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:56,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:56,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:56,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:56,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:56,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:56,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:56,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:56,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:56,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:56,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:56,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:56:56,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:56,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:56,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:56,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:56,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:56,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:56,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:56,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:56,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:56,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:56,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:56,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:56:56,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:56,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:56,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:56,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:56,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:56,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:56,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:56,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:56,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:56,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:56,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:56,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:56:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:56,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:56,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:56,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:56,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:56,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:56,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:56,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:56,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:56,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:56,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:56,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:56:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:56,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:56,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:56,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:56,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:56,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:56,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:56,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:56,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:56,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:56,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:56,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 19:56:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:56,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:56,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:56,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:56,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:56,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:56,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:56,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:56,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:56,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:56,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:56,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-26 19:56:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:56,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:56,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:56,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:56,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:56,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:56,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:56,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:56,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:56,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:56,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:56,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-26 19:56:56,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:56,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:56,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:56,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:56,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:56,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:56,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:56,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:56,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:56,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:56,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:56,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 19:56:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:56,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:56,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:56,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:56,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:56,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:56,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:56,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:56,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:56,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:56,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:56,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-26 19:56:56,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:56,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:56,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:56,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:56,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:56,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:56,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:56,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:56,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:56,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:56,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:56,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 19:56:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:56,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:56,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:56,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:56,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:56,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:56,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:56,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:56,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:56,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:56,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:56,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-26 19:56:56,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:56,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:56,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:56,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:56,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:56,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:56,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:56,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:56,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:56,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:56,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:56,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-26 19:56:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:56,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:56,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:56,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:56,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:56,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:56,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:56,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:56,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:56,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:56,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:56,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-26 19:56:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:56,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:56,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:56,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:56,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:56,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:56,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:56,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:56,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:56,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:56,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:56,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-26 19:56:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:56,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:56,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:56,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:56,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:56,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:56,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:56,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:56,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:56,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:56,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:56,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-26 19:56:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:56,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:56,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:56,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:56,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:56,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:56,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:56,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:56,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:56,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:56,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:56,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-26 19:56:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:56,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:56,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:56,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:56,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:56,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:56,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:56,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:56,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:56,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:56,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:56,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-26 19:56:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:56,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:56,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:56,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:56,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:56,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:56,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:56,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:56,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:56,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:56,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:56,372 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 180 proven. 36 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2020-10-26 19:56:56,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [161993191] [2020-10-26 19:56:56,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:56:56,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-26 19:56:56,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533329248] [2020-10-26 19:56:56,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-26 19:56:56,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:56:56,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-26 19:56:56,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2020-10-26 19:56:56,374 INFO L87 Difference]: Start difference. First operand 133 states and 151 transitions. Second operand 19 states. [2020-10-26 19:56:58,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:56:58,019 INFO L93 Difference]: Finished difference Result 239 states and 270 transitions. [2020-10-26 19:56:58,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-26 19:56:58,020 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 154 [2020-10-26 19:56:58,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:56:58,022 INFO L225 Difference]: With dead ends: 239 [2020-10-26 19:56:58,022 INFO L226 Difference]: Without dead ends: 154 [2020-10-26 19:56:58,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=283, Invalid=1049, Unknown=0, NotChecked=0, Total=1332 [2020-10-26 19:56:58,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-26 19:56:58,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 144. [2020-10-26 19:56:58,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-26 19:56:58,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 168 transitions. [2020-10-26 19:56:58,069 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 168 transitions. Word has length 154 [2020-10-26 19:56:58,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:56:58,070 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 168 transitions. [2020-10-26 19:56:58,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-26 19:56:58,070 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 168 transitions. [2020-10-26 19:56:58,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-26 19:56:58,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:56:58,071 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 10, 10, 10, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:56:58,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-26 19:56:58,074 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:56:58,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:56:58,074 INFO L82 PathProgramCache]: Analyzing trace with hash -2139558102, now seen corresponding path program 12 times [2020-10-26 19:56:58,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:56:58,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2045584526] [2020-10-26 19:56:58,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:56:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:58,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-10-26 19:56:59,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1174 [2020-10-26 19:56:59,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-26 19:56:59,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 19:56:59,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 203 [2020-10-26 19:56:59,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:56:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:59,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:59,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:56:59,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:56:59,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:56:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:59,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:59,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:56:59,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:56:59,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:56:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:59,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:59,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:59,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:59,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:56:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:59,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:56:59,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:59,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:59,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:56:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:59,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:59,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:59,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:59,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:56:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:59,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:59,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:59,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:59,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:56:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:59,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:59,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:59,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:59,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 19:56:59,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:59,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:59,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:59,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:59,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-26 19:56:59,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:59,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:59,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:59,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:59,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-26 19:56:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:59,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:59,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:59,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:59,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 19:56:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:59,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:59,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:59,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:59,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-26 19:56:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:59,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:59,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:59,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:59,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 19:56:59,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:59,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:56:59,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:59,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:59,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-26 19:56:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:56:59,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:59,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:59,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:56:59,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 19:56:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:59,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:59,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:59,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:59,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-26 19:56:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:59,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:59,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:59,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:59,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 19:56:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:59,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:59,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:59,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:59,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-26 19:56:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:59,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:59,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:59,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:59,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-26 19:56:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:59,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:59,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:59,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:59,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-26 19:56:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:59,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:59,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:59,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:59,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 19:56:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:59,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:59,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:59,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:59,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-26 19:56:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:59,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:59,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:59,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:59,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-26 19:56:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:56:59,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:56:59,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:56:59,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:56:59,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:56:59,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:56:59,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:56:59,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:56:59,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:56:59,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:56:59,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:56:59,989 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 18 proven. 232 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2020-10-26 19:56:59,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2045584526] [2020-10-26 19:56:59,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:56:59,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-26 19:56:59,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638319952] [2020-10-26 19:56:59,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-26 19:56:59,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:56:59,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-26 19:56:59,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=418, Unknown=0, NotChecked=0, Total=462 [2020-10-26 19:56:59,991 INFO L87 Difference]: Start difference. First operand 144 states and 168 transitions. Second operand 22 states. [2020-10-26 19:57:54,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:57:54,904 INFO L93 Difference]: Finished difference Result 3526 states and 5355 transitions. [2020-10-26 19:57:54,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 527 states. [2020-10-26 19:57:54,905 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 174 [2020-10-26 19:57:54,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:57:54,926 INFO L225 Difference]: With dead ends: 3526 [2020-10-26 19:57:54,926 INFO L226 Difference]: Without dead ends: 3523 [2020-10-26 19:57:54,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 579 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 531 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134025 ImplicationChecksByTransitivity, 26.1s TimeCoverageRelationStatistics Valid=18058, Invalid=265498, Unknown=0, NotChecked=0, Total=283556 [2020-10-26 19:57:54,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3523 states. [2020-10-26 19:57:55,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3523 to 198. [2020-10-26 19:57:55,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-26 19:57:55,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 238 transitions. [2020-10-26 19:57:55,124 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 238 transitions. Word has length 174 [2020-10-26 19:57:55,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:57:55,124 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 238 transitions. [2020-10-26 19:57:55,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-26 19:57:55,125 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 238 transitions. [2020-10-26 19:57:55,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-26 19:57:55,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:57:55,126 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 10, 10, 10, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:57:55,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-26 19:57:55,127 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:57:55,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:57:55,127 INFO L82 PathProgramCache]: Analyzing trace with hash 536434280, now seen corresponding path program 4 times [2020-10-26 19:57:55,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:57:55,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1273443182] [2020-10-26 19:57:55,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:57:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:55,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:56,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:56,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-10-26 19:57:56,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:56,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1142 [2020-10-26 19:57:56,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:56,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-26 19:57:56,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:57:56,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 212 [2020-10-26 19:57:56,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:57:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:57:57,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:57:57,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:57:57,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:57:57,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:57:57,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:57:57,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:57:57,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:57:57,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:57:57,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:57:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:57:57,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:57:57,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:57:57,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:57:57,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:57:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:57:57,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:57:57,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:57:57,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:57:57,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:57:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:57:57,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:57:57,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:57:57,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:57:57,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:57:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:57:57,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:57:57,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:57:57,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:57:57,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:57:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:57:57,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:57:57,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:57:57,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:57:57,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 19:57:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:57:57,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:57:57,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:57:57,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:57:57,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-26 19:57:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:57:57,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:57:57,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:57:57,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:57:57,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-26 19:57:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:57:57,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:57:57,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:57:57,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:57:57,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 19:57:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:57:57,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:57:57,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:57:57,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:57:57,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-26 19:57:57,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:57:57,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:57:57,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:57:57,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:57:57,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 19:57:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:57:57,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:57:57,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:57:57,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:57:57,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-26 19:57:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:57:57,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:57:57,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:57:57,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:57:57,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 19:57:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:57:57,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:57:57,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:57:57,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:57:57,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-26 19:57:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:57:57,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:57:57,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:57:57,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:57:57,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 19:57:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:57:57,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:57:57,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:57:57,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:57:57,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-26 19:57:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:57:57,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:57:57,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:57:57,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:57:57,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-26 19:57:57,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:57:57,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:57:57,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:57:57,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:57:57,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-26 19:57:57,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:57:57,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:57:57,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:57:57,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:57:57,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 19:57:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:57:57,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:57:57,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:57:57,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:57:57,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-26 19:57:57,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:57:57,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:57:57,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:57:57,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:57:57,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-26 19:57:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:57:57,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:57:57,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:57:57,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:57:57,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:57:57,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:57:57,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:57:57,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:57:57,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:57:57,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:57:57,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:57:57,296 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 18 proven. 232 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2020-10-26 19:57:57,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1273443182] [2020-10-26 19:57:57,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:57:57,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-26 19:57:57,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589418066] [2020-10-26 19:57:57,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-26 19:57:57,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:57:57,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-26 19:57:57,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2020-10-26 19:57:57,298 INFO L87 Difference]: Start difference. First operand 198 states and 238 transitions. Second operand 23 states. [2020-10-26 19:58:03,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:58:03,275 INFO L93 Difference]: Finished difference Result 396 states and 544 transitions. [2020-10-26 19:58:03,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-26 19:58:03,277 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 174 [2020-10-26 19:58:03,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:58:03,280 INFO L225 Difference]: With dead ends: 396 [2020-10-26 19:58:03,280 INFO L226 Difference]: Without dead ends: 393 [2020-10-26 19:58:03,281 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 641 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=409, Invalid=2783, Unknown=0, NotChecked=0, Total=3192 [2020-10-26 19:58:03,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2020-10-26 19:58:03,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 152. [2020-10-26 19:58:03,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-10-26 19:58:03,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 176 transitions. [2020-10-26 19:58:03,353 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 176 transitions. Word has length 174 [2020-10-26 19:58:03,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:58:03,354 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 176 transitions. [2020-10-26 19:58:03,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-26 19:58:03,354 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 176 transitions. [2020-10-26 19:58:03,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-26 19:58:03,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:58:03,356 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:58:03,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-26 19:58:03,356 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:58:03,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:58:03,357 INFO L82 PathProgramCache]: Analyzing trace with hash 240699493, now seen corresponding path program 13 times [2020-10-26 19:58:03,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:58:03,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1277374226] [2020-10-26 19:58:03,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:58:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:03,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:04,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:04,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-10-26 19:58:04,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:04,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1562 [2020-10-26 19:58:04,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:04,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-26 19:58:04,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 19:58:04,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 213 [2020-10-26 19:58:04,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:58:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:58:05,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 19:58:05,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:58:05,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:58:05,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 19:58:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:58:05,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:58:05,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:58:05,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:58:05,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-26 19:58:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:58:05,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:58:05,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:58:05,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:58:05,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 19:58:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:58:05,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:58:05,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:58:05,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:58:05,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 19:58:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:58:05,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:58:05,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:58:05,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:58:05,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 19:58:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:58:05,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:58:05,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:58:05,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:58:05,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 19:58:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:58:05,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:58:05,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:58:05,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:58:05,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-26 19:58:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:58:05,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:58:05,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:58:05,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:58:05,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-26 19:58:05,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:58:05,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:58:05,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:58:05,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:58:05,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-26 19:58:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:58:05,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:58:05,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:58:05,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:58:05,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 19:58:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:58:05,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:58:05,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:58:05,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:58:05,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-26 19:58:05,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:58:05,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:58:05,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:58:05,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:58:05,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 19:58:05,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:58:05,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:58:05,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:58:05,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:58:05,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-26 19:58:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:58:05,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:58:05,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:58:05,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-26 19:58:05,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 19:58:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:58:05,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:58:05,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:58:05,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:58:05,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-26 19:58:05,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:58:05,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:58:05,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:58:05,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:58:05,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 19:58:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:58:05,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 19:58:05,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:58:05,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:58:05,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-26 19:58:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:58:05,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:58:05,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:58:05,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:58:05,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-26 19:58:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:58:05,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:58:05,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:58:05,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:58:05,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-26 19:58:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:58:05,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:58:05,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:58:05,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:58:05,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 19:58:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:58:05,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:58:05,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:58:05,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:58:05,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-26 19:58:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:58:05,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:58:05,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:58:05,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:58:05,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-26 19:58:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:58:05,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 19:58:05,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:58:05,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:58:05,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:58:05,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-10-26 19:58:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:58:05,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:58:05,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:58:05,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:58:05,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:58:05,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 19:58:05,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:58:05,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:58:05,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:58:05,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:58:05,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 19:58:05,948 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 20 proven. 270 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2020-10-26 19:58:05,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1277374226] [2020-10-26 19:58:05,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 19:58:05,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-26 19:58:05,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301658948] [2020-10-26 19:58:05,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-26 19:58:05,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:58:05,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-26 19:58:05,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=460, Unknown=0, NotChecked=0, Total=506 [2020-10-26 19:58:05,950 INFO L87 Difference]: Start difference. First operand 152 states and 176 transitions. Second operand 23 states.