/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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/eca-rers2012/Problem12_label28.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 12:20:11,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 12:20:11,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 12:20:11,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 12:20:11,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 12:20:11,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 12:20:11,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 12:20:11,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 12:20:11,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 12:20:11,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 12:20:11,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 12:20:11,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 12:20:11,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 12:20:11,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 12:20:11,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 12:20:11,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 12:20:11,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 12:20:11,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 12:20:11,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 12:20:11,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 12:20:11,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 12:20:11,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 12:20:11,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 12:20:11,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 12:20:11,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 12:20:11,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 12:20:11,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 12:20:11,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 12:20:11,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 12:20:11,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 12:20:11,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 12:20:11,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 12:20:11,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 12:20:11,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 12:20:11,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 12:20:11,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 12:20:11,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 12:20:11,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 12:20:11,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 12:20:11,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 12:20:11,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 12:20:11,362 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 [2020-10-28 12:20:11,392 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 12:20:11,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 12:20:11,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 12:20:11,395 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 12:20:11,395 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 12:20:11,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 12:20:11,396 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 12:20:11,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 12:20:11,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 12:20:11,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 12:20:11,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 12:20:11,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 12:20:11,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 12:20:11,397 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 12:20:11,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 12:20:11,398 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 12:20:11,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 12:20:11,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 12:20:11,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 12:20:11,399 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 12:20:11,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 12:20:11,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:20:11,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 12:20:11,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 12:20:11,401 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 12:20:11,401 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 12:20:11,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 12:20:11,401 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 12:20:11,401 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 12:20:11,402 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 12:20:11,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 12:20:11,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 12:20:11,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 12:20:11,893 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 12:20:11,893 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 12:20:11,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label28.c [2020-10-28 12:20:11,976 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/01aeda089/fe02c7fa19cd4588b30c06c123a30944/FLAGfae44d2bc [2020-10-28 12:20:13,095 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 12:20:13,096 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem12_label28.c [2020-10-28 12:20:13,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/01aeda089/fe02c7fa19cd4588b30c06c123a30944/FLAGfae44d2bc [2020-10-28 12:20:13,489 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/01aeda089/fe02c7fa19cd4588b30c06c123a30944 [2020-10-28 12:20:13,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 12:20:13,503 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 12:20:13,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 12:20:13,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 12:20:13,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 12:20:13,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:20:13" (1/1) ... [2020-10-28 12:20:13,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c096cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:20:13, skipping insertion in model container [2020-10-28 12:20:13,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:20:13" (1/1) ... [2020-10-28 12:20:13,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 12:20:13,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 12:20:15,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:20:15,280 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 12:20:16,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:20:16,050 INFO L208 MainTranslator]: Completed translation [2020-10-28 12:20:16,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:20:16 WrapperNode [2020-10-28 12:20:16,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 12:20:16,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 12:20:16,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 12:20:16,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 12:20:16,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:20:16" (1/1) ... [2020-10-28 12:20:16,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:20:16" (1/1) ... [2020-10-28 12:20:16,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:20:16" (1/1) ... [2020-10-28 12:20:16,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:20:16" (1/1) ... [2020-10-28 12:20:16,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:20:16" (1/1) ... [2020-10-28 12:20:16,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:20:16" (1/1) ... [2020-10-28 12:20:16,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:20:16" (1/1) ... [2020-10-28 12:20:16,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 12:20:16,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 12:20:16,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 12:20:16,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 12:20:16,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:20:16" (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 [2020-10-28 12:20:16,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 12:20:16,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 12:20:16,562 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 12:20:16,563 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 12:20:16,563 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-28 12:20:16,563 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-28 12:20:16,563 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-28 12:20:16,563 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 12:20:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 12:20:16,564 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-28 12:20:16,564 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-28 12:20:16,564 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-28 12:20:16,564 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 12:20:16,564 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 12:20:16,564 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 12:20:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 12:20:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 12:20:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 12:20:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 12:20:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 12:20:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 12:20:16,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 12:20:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 12:20:16,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 12:20:16,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 12:20:22,645 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 12:20:22,646 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 12:20:22,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:20:22 BoogieIcfgContainer [2020-10-28 12:20:22,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 12:20:22,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 12:20:22,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 12:20:22,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 12:20:22,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 12:20:13" (1/3) ... [2020-10-28 12:20:22,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e54f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:20:22, skipping insertion in model container [2020-10-28 12:20:22,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:20:16" (2/3) ... [2020-10-28 12:20:22,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e54f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:20:22, skipping insertion in model container [2020-10-28 12:20:22,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:20:22" (3/3) ... [2020-10-28 12:20:22,665 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem12_label28.c [2020-10-28 12:20:22,681 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 12:20:22,687 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 12:20:22,700 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 12:20:22,735 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 12:20:22,735 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 12:20:22,736 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 12:20:22,736 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 12:20:22,736 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 12:20:22,736 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 12:20:22,736 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 12:20:22,736 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 12:20:22,777 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states. [2020-10-28 12:20:22,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-28 12:20:22,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:20:22,784 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:20:22,785 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:20:22,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:20:22,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1360257956, now seen corresponding path program 1 times [2020-10-28 12:20:22,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:20:22,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [824717820] [2020-10-28 12:20:22,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:20:22,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:20:23,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:20:23,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:20:23,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 12:20:23,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:20:23,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 582 [2020-10-28 12:20:23,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:20:23,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:20:23,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:20:23,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:20:23,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-28 12:20:23,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 12:20:23,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:20:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:20:23,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:20:23,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:20:23,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:20:23,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:20:23,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 12:20:23,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:20:23,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:20:23,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:20:23,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:20:23,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:20:23,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:20:23,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:20:23,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [824717820] [2020-10-28 12:20:23,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:20:23,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 12:20:23,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416955659] [2020-10-28 12:20:23,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 12:20:23,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:20:23,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 12:20:23,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 12:20:23,919 INFO L87 Difference]: Start difference. First operand 843 states. Second operand 4 states. [2020-10-28 12:20:24,069 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-28 12:20:36,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:20:36,156 INFO L93 Difference]: Finished difference Result 2476 states and 4741 transitions. [2020-10-28 12:20:36,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:20:36,159 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-10-28 12:20:36,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:20:36,195 INFO L225 Difference]: With dead ends: 2476 [2020-10-28 12:20:36,196 INFO L226 Difference]: Without dead ends: 1569 [2020-10-28 12:20:36,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:20:36,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2020-10-28 12:20:36,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1556. [2020-10-28 12:20:36,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1556 states. [2020-10-28 12:20:36,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2404 transitions. [2020-10-28 12:20:36,406 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2404 transitions. Word has length 27 [2020-10-28 12:20:36,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:20:36,407 INFO L481 AbstractCegarLoop]: Abstraction has 1556 states and 2404 transitions. [2020-10-28 12:20:36,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 12:20:36,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2404 transitions. [2020-10-28 12:20:36,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-28 12:20:36,414 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:20:36,415 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:20:36,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 12:20:36,417 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:20:36,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:20:36,420 INFO L82 PathProgramCache]: Analyzing trace with hash -736456835, now seen corresponding path program 1 times [2020-10-28 12:20:36,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:20:36,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569944227] [2020-10-28 12:20:36,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:20:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:20:36,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:20:36,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:20:37,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:20:37,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-28 12:20:37,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:20:37,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1160 [2020-10-28 12:20:37,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:20:37,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:20:37,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:20:37,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-28 12:20:37,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-28 12:20:37,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-28 12:20:37,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:20:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:20:37,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:20:37,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:20:37,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:20:37,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:20:37,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 12:20:37,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:20:37,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:20:37,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:20:37,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:20:37,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:20:37,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-28 12:20:37,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:20:37,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:20:37,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:20:38,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:20:38,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-28 12:20:38,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:20:38,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-28 12:20:38,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:20:38,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:20:38,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:20:38,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:20:38,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 12:20:38,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:20:38,074 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:20:38,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569944227] [2020-10-28 12:20:38,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:20:38,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:20:38,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033245279] [2020-10-28 12:20:38,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:20:38,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:20:38,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:20:38,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:20:38,081 INFO L87 Difference]: Start difference. First operand 1556 states and 2404 transitions. Second operand 5 states. [2020-10-28 12:20:54,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:20:54,603 INFO L93 Difference]: Finished difference Result 4675 states and 7283 transitions. [2020-10-28 12:20:54,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:20:54,605 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2020-10-28 12:20:54,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:20:54,627 INFO L225 Difference]: With dead ends: 4675 [2020-10-28 12:20:54,627 INFO L226 Difference]: Without dead ends: 3125 [2020-10-28 12:20:54,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:20:54,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3125 states. [2020-10-28 12:20:54,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3125 to 3118. [2020-10-28 12:20:54,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3118 states. [2020-10-28 12:20:54,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 4282 transitions. [2020-10-28 12:20:54,757 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 4282 transitions. Word has length 102 [2020-10-28 12:20:54,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:20:54,758 INFO L481 AbstractCegarLoop]: Abstraction has 3118 states and 4282 transitions. [2020-10-28 12:20:54,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:20:54,758 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 4282 transitions. [2020-10-28 12:20:54,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-28 12:20:54,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:20:54,763 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:20:54,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 12:20:54,764 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:20:54,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:20:54,765 INFO L82 PathProgramCache]: Analyzing trace with hash 172638345, now seen corresponding path program 1 times [2020-10-28 12:20:54,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:20:54,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276362859] [2020-10-28 12:20:54,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:20:54,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:20:54,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:20:55,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:20:56,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:20:56,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:20:56,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:20:56,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1211 [2020-10-28 12:20:56,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:20:56,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:20:56,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:20:56,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:20:56,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 12:20:56,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:20:56,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:20:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:20:56,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:20:56,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:20:56,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:20:56,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:20:56,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:20:56,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:20:56,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:20:56,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:20:56,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:20:56,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:20:56,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:20:56,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:20:56,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:20:56,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:20:56,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:20:56,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:20:56,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:20:56,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-28 12:20:56,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:20:56,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:20:56,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:20:56,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:20:56,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-28 12:20:56,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 12:20:56,704 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:20:56,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1276362859] [2020-10-28 12:20:56,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:20:56,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:20:56,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845765486] [2020-10-28 12:20:56,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:20:56,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:20:56,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:20:56,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:20:56,708 INFO L87 Difference]: Start difference. First operand 3118 states and 4282 transitions. Second operand 7 states. [2020-10-28 12:20:57,628 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-28 12:21:18,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:21:18,248 INFO L93 Difference]: Finished difference Result 9444 states and 13178 transitions. [2020-10-28 12:21:18,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:21:18,250 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2020-10-28 12:21:18,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:21:18,292 INFO L225 Difference]: With dead ends: 9444 [2020-10-28 12:21:18,293 INFO L226 Difference]: Without dead ends: 6332 [2020-10-28 12:21:18,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:21:18,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6332 states. [2020-10-28 12:21:18,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6332 to 6305. [2020-10-28 12:21:18,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6305 states. [2020-10-28 12:21:18,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6305 states to 6305 states and 8458 transitions. [2020-10-28 12:21:18,617 INFO L78 Accepts]: Start accepts. Automaton has 6305 states and 8458 transitions. Word has length 108 [2020-10-28 12:21:18,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:21:18,618 INFO L481 AbstractCegarLoop]: Abstraction has 6305 states and 8458 transitions. [2020-10-28 12:21:18,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:21:18,618 INFO L276 IsEmpty]: Start isEmpty. Operand 6305 states and 8458 transitions. [2020-10-28 12:21:18,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-28 12:21:18,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:21:18,631 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:21:18,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 12:21:18,631 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:21:18,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:21:18,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1517271407, now seen corresponding path program 1 times [2020-10-28 12:21:18,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:21:18,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717395467] [2020-10-28 12:21:18,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:21:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:21:18,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:21:19,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:21:19,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:21:19,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-28 12:21:19,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:21:19,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 926 [2020-10-28 12:21:19,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:21:19,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:21:19,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:21:19,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:21:19,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-28 12:21:19,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:21:19,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:21:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:21:19,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:21:19,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:21:19,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:21:19,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:21:19,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:21:19,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:21:19,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:21:19,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:21:19,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:21:19,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:21:19,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:21:19,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:21:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:21:19,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:21:19,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:21:19,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-28 12:21:19,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:21:19,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-28 12:21:19,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:21:19,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:21:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:21:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:21:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 12:21:19,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:21:20,091 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:21:20,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717395467] [2020-10-28 12:21:20,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:21:20,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:21:20,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116670605] [2020-10-28 12:21:20,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:21:20,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:21:20,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:21:20,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:21:20,099 INFO L87 Difference]: Start difference. First operand 6305 states and 8458 transitions. Second operand 7 states. [2020-10-28 12:21:41,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:21:41,282 INFO L93 Difference]: Finished difference Result 19252 states and 26569 transitions. [2020-10-28 12:21:41,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:21:41,284 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2020-10-28 12:21:41,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:21:41,357 INFO L225 Difference]: With dead ends: 19252 [2020-10-28 12:21:41,357 INFO L226 Difference]: Without dead ends: 12953 [2020-10-28 12:21:41,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:21:41,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12953 states. [2020-10-28 12:21:41,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12953 to 12091. [2020-10-28 12:21:41,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12091 states. [2020-10-28 12:21:41,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12091 states to 12091 states and 15640 transitions. [2020-10-28 12:21:41,791 INFO L78 Accepts]: Start accepts. Automaton has 12091 states and 15640 transitions. Word has length 112 [2020-10-28 12:21:41,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:21:41,793 INFO L481 AbstractCegarLoop]: Abstraction has 12091 states and 15640 transitions. [2020-10-28 12:21:41,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:21:41,793 INFO L276 IsEmpty]: Start isEmpty. Operand 12091 states and 15640 transitions. [2020-10-28 12:21:41,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-28 12:21:41,803 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:21:41,804 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2020-10-28 12:21:41,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 12:21:41,804 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:21:41,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:21:41,805 INFO L82 PathProgramCache]: Analyzing trace with hash -786926826, now seen corresponding path program 1 times [2020-10-28 12:21:41,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:21:41,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302134699] [2020-10-28 12:21:41,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:21:41,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:21:41,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:21:42,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:21:42,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:21:43,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:21:43,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:21:43,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-28 12:21:43,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:21:43,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1803 [2020-10-28 12:21:43,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:21:43,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:21:43,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:21:43,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-28 12:21:43,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-28 12:21:43,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:21:43,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:21:43,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:21:43,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:21:43,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:21:43,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:21:43,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:21:43,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:21:43,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:21:43,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:21:43,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:21:43,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:21:43,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:21:43,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:21:43,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:21:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:21:43,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:21:43,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:21:43,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-28 12:21:43,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:21:43,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-28 12:21:43,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:21:43,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:21:43,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:21:43,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:21:43,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 12:21:43,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:21:43,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-28 12:21:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:21:44,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:21:44,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:21:44,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:21:44,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-28 12:21:44,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:21:44,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 371 [2020-10-28 12:21:44,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:21:44,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:21:44,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:21:44,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:21:44,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 12:21:44,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:21:44,676 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 89 proven. 19 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 12:21:44,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [302134699] [2020-10-28 12:21:44,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:21:44,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:21:44,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668481828] [2020-10-28 12:21:44,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:21:44,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:21:44,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:21:44,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:21:44,682 INFO L87 Difference]: Start difference. First operand 12091 states and 15640 transitions. Second operand 7 states. [2020-10-28 12:21:47,395 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-28 12:22:15,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:22:15,993 INFO L93 Difference]: Finished difference Result 48494 states and 68626 transitions. [2020-10-28 12:22:15,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:22:15,996 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 210 [2020-10-28 12:22:15,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:22:16,185 INFO L225 Difference]: With dead ends: 48494 [2020-10-28 12:22:16,185 INFO L226 Difference]: Without dead ends: 36409 [2020-10-28 12:22:16,238 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:22:16,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36409 states. [2020-10-28 12:22:17,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36409 to 32333. [2020-10-28 12:22:17,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32333 states. [2020-10-28 12:22:17,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32333 states to 32333 states and 41993 transitions. [2020-10-28 12:22:17,342 INFO L78 Accepts]: Start accepts. Automaton has 32333 states and 41993 transitions. Word has length 210 [2020-10-28 12:22:17,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:22:17,343 INFO L481 AbstractCegarLoop]: Abstraction has 32333 states and 41993 transitions. [2020-10-28 12:22:17,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:22:17,344 INFO L276 IsEmpty]: Start isEmpty. Operand 32333 states and 41993 transitions. [2020-10-28 12:22:17,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-28 12:22:17,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:22:17,348 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2020-10-28 12:22:17,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 12:22:17,349 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:22:17,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:22:17,349 INFO L82 PathProgramCache]: Analyzing trace with hash -697262366, now seen corresponding path program 1 times [2020-10-28 12:22:17,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:22:17,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [706980359] [2020-10-28 12:22:17,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:22:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:22:17,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:22:17,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:22:18,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:22:18,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:22:18,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:22:18,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-10-28 12:22:18,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:22:18,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1575 [2020-10-28 12:22:18,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:22:18,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:22:18,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:22:18,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-28 12:22:18,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-28 12:22:18,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:22:19,218 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-28 12:22:19,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:22:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:22:19,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:22:19,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:22:19,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:22:19,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:22:19,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:22:19,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:22:19,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:22:19,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:22:19,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:22:19,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:22:19,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:22:19,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:22:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:22:19,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:22:19,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:22:19,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-28 12:22:19,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:22:19,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-28 12:22:19,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:22:19,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:22:19,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:22:19,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:22:19,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 12:22:19,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:22:19,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-28 12:22:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:22:19,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:22:19,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:22:19,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:22:19,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-28 12:22:19,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:22:19,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-10-28 12:22:19,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:22:19,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:22:19,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:22:19,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:22:19,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 12:22:19,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:22:19,784 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-28 12:22:19,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [706980359] [2020-10-28 12:22:19,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:22:19,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 12:22:19,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445919457] [2020-10-28 12:22:19,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 12:22:19,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:22:19,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 12:22:19,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:22:19,789 INFO L87 Difference]: Start difference. First operand 32333 states and 41993 transitions. Second operand 6 states. [2020-10-28 12:22:41,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:22:41,725 INFO L93 Difference]: Finished difference Result 78881 states and 105699 transitions. [2020-10-28 12:22:41,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:22:41,728 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 216 [2020-10-28 12:22:41,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:22:41,921 INFO L225 Difference]: With dead ends: 78881 [2020-10-28 12:22:41,921 INFO L226 Difference]: Without dead ends: 47321 [2020-10-28 12:22:42,009 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:22:42,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47321 states. [2020-10-28 12:22:43,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47321 to 45002. [2020-10-28 12:22:43,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45002 states. [2020-10-28 12:22:43,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45002 states to 45002 states and 60136 transitions. [2020-10-28 12:22:43,395 INFO L78 Accepts]: Start accepts. Automaton has 45002 states and 60136 transitions. Word has length 216 [2020-10-28 12:22:43,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:22:43,396 INFO L481 AbstractCegarLoop]: Abstraction has 45002 states and 60136 transitions. [2020-10-28 12:22:43,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 12:22:43,396 INFO L276 IsEmpty]: Start isEmpty. Operand 45002 states and 60136 transitions. [2020-10-28 12:22:43,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2020-10-28 12:22:43,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:22:43,405 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:22:43,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 12:22:43,405 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:22:43,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:22:43,406 INFO L82 PathProgramCache]: Analyzing trace with hash 221441092, now seen corresponding path program 1 times [2020-10-28 12:22:43,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:22:43,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [378955030] [2020-10-28 12:22:43,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:22:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:22:43,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:22:43,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:22:45,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:22:45,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 303 [2020-10-28 12:22:45,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:22:45,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2040 [2020-10-28 12:22:45,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:22:45,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:22:45,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:22:45,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-28 12:22:45,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 12:22:45,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:22:45,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:22:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:22:45,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:22:45,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:22:45,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:22:45,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:22:45,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:22:45,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:22:45,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:22:45,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:22:45,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:22:45,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:22:45,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:22:45,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:22:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:22:46,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:22:46,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:22:46,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-28 12:22:46,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:22:46,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-28 12:22:46,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:22:46,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:22:46,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:22:46,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:22:46,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-28 12:22:46,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:22:46,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-28 12:22:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:22:46,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:22:46,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:22:46,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:22:46,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:22:46,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-28 12:22:46,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:22:46,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:22:46,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:22:46,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:22:46,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-28 12:22:46,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:22:46,673 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 152 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:22:46,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [378955030] [2020-10-28 12:22:46,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:22:46,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:22:46,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128828813] [2020-10-28 12:22:46,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:22:46,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:22:46,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:22:46,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:22:46,676 INFO L87 Difference]: Start difference. First operand 45002 states and 60136 transitions. Second operand 7 states. [2020-10-28 12:23:12,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:23:12,194 INFO L93 Difference]: Finished difference Result 114299 states and 160782 transitions. [2020-10-28 12:23:12,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:23:12,196 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 289 [2020-10-28 12:23:12,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:23:12,505 INFO L225 Difference]: With dead ends: 114299 [2020-10-28 12:23:12,506 INFO L226 Difference]: Without dead ends: 70070 [2020-10-28 12:23:12,594 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:23:12,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70070 states. [2020-10-28 12:23:15,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70070 to 68330. [2020-10-28 12:23:15,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68330 states. [2020-10-28 12:23:15,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68330 states to 68330 states and 93220 transitions. [2020-10-28 12:23:15,541 INFO L78 Accepts]: Start accepts. Automaton has 68330 states and 93220 transitions. Word has length 289 [2020-10-28 12:23:15,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:23:15,542 INFO L481 AbstractCegarLoop]: Abstraction has 68330 states and 93220 transitions. [2020-10-28 12:23:15,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:23:15,542 INFO L276 IsEmpty]: Start isEmpty. Operand 68330 states and 93220 transitions. [2020-10-28 12:23:15,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-10-28 12:23:15,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:23:15,550 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2020-10-28 12:23:15,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 12:23:15,551 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:23:15,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:23:15,551 INFO L82 PathProgramCache]: Analyzing trace with hash -663168196, now seen corresponding path program 1 times [2020-10-28 12:23:15,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:23:15,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1834445152] [2020-10-28 12:23:15,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:23:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:23:15,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:23:16,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:23:17,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:23:17,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 307 [2020-10-28 12:23:17,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:23:17,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1586 [2020-10-28 12:23:17,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:23:17,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:23:17,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:23:17,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-10-28 12:23:17,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-28 12:23:17,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:23:17,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:23:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:23:17,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:23:17,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:23:17,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:23:17,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:23:17,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:23:17,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:23:17,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:23:17,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:23:17,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:23:17,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:23:17,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:23:17,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:23:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:23:17,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:23:17,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:23:17,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-28 12:23:17,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:23:17,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-28 12:23:17,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:23:17,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:23:17,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:23:17,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:23:17,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-28 12:23:17,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:23:17,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-28 12:23:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:23:17,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:23:18,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:23:18,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:23:18,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:23:18,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-28 12:23:18,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:23:18,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:23:18,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:23:18,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:23:18,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-28 12:23:18,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:23:18,382 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 131 proven. 19 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 12:23:18,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1834445152] [2020-10-28 12:23:18,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:23:18,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 12:23:18,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18297095] [2020-10-28 12:23:18,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 12:23:18,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:23:18,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 12:23:18,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:23:18,386 INFO L87 Difference]: Start difference. First operand 68330 states and 93220 transitions. Second operand 6 states. [2020-10-28 12:23:19,676 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-28 12:23:42,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:23:42,488 INFO L93 Difference]: Finished difference Result 158737 states and 223932 transitions. [2020-10-28 12:23:42,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:23:42,490 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 293 [2020-10-28 12:23:42,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:23:43,288 INFO L225 Difference]: With dead ends: 158737 [2020-10-28 12:23:43,289 INFO L226 Difference]: Without dead ends: 91180 [2020-10-28 12:23:43,585 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:23:43,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91180 states. [2020-10-28 12:23:45,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91180 to 89528. [2020-10-28 12:23:45,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89528 states. [2020-10-28 12:23:46,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89528 states to 89528 states and 120484 transitions. [2020-10-28 12:23:46,187 INFO L78 Accepts]: Start accepts. Automaton has 89528 states and 120484 transitions. Word has length 293 [2020-10-28 12:23:46,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:23:46,188 INFO L481 AbstractCegarLoop]: Abstraction has 89528 states and 120484 transitions. [2020-10-28 12:23:46,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 12:23:46,188 INFO L276 IsEmpty]: Start isEmpty. Operand 89528 states and 120484 transitions. [2020-10-28 12:23:46,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-10-28 12:23:46,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:23:46,198 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:23:46,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 12:23:46,199 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:23:46,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:23:46,199 INFO L82 PathProgramCache]: Analyzing trace with hash 67603139, now seen corresponding path program 1 times [2020-10-28 12:23:46,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:23:46,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2057794561] [2020-10-28 12:23:46,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:23:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:23:46,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:23:46,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:23:46,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:23:47,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:23:48,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:23:51,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:23:51,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 313 [2020-10-28 12:23:51,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:23:51,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-28 12:23:51,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:23:51,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:23:51,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:23:51,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-28 12:23:51,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 12:23:51,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:23:51,498 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-28 12:23:51,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:23:51,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:23:51,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:23:51,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:23:51,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:23:51,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:23:51,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:23:51,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:23:51,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:23:51,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:23:51,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:23:51,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:23:51,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:23:51,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:23:51,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:23:51,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:23:51,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:23:51,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-28 12:23:51,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:23:51,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-28 12:23:51,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:23:51,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:23:51,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:23:51,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:23:51,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 12:23:51,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:23:51,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-28 12:23:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:23:51,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:23:51,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:23:51,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-28 12:23:51,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:23:51,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-28 12:23:51,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:23:51,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:23:51,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:23:51,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:23:51,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-28 12:23:51,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:23:51,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-28 12:23:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:23:51,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:23:52,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:23:52,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:23:52,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:23:52,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 12:23:52,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:23:52,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:23:52,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:23:52,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-28 12:23:52,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:23:52,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0