/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label43.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:17:15,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:17:15,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:17:15,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:17:15,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:17:15,763 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:17:15,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:17:15,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:17:15,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:17:15,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:17:15,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:17:15,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:17:15,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:17:15,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:17:15,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:17:15,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:17:15,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:17:15,791 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:17:15,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:17:15,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:17:15,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:17:15,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:17:15,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:17:15,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:17:15,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:17:15,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:17:15,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:17:15,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:17:15,824 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:17:15,825 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:17:15,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:17:15,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:17:15,827 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:17:15,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:17:15,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:17:15,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:17:15,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:17:15,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:17:15,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:17:15,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:17:15,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:17:15,835 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 11:17:15,882 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:17:15,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:17:15,884 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:17:15,884 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:17:15,884 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:17:15,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:17:15,885 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:17:15,885 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:17:15,886 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:17:15,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:17:15,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:17:15,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:17:15,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:17:15,888 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:17:15,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:17:15,888 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:17:15,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:17:15,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:17:15,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:17:15,889 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:17:15,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:17:15,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:17:15,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:17:15,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:17:15,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:17:15,890 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:17:15,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:17:15,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:17:15,891 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:17:15,891 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 11:17:16,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:17:16,353 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:17:16,359 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:17:16,361 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:17:16,362 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:17:16,363 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label43.c [2020-09-25 11:17:16,447 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/40eb46536/4ba73fc69cb04643ac59aa6e8816eb28/FLAG7f362ab88 [2020-09-25 11:17:17,156 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:17:17,157 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label43.c [2020-09-25 11:17:17,173 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/40eb46536/4ba73fc69cb04643ac59aa6e8816eb28/FLAG7f362ab88 [2020-09-25 11:17:17,366 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/40eb46536/4ba73fc69cb04643ac59aa6e8816eb28 [2020-09-25 11:17:17,382 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:17:17,389 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:17:17,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:17:17,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:17:17,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:17:17,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:17:17" (1/1) ... [2020-09-25 11:17:17,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12391971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:17:17, skipping insertion in model container [2020-09-25 11:17:17,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:17:17" (1/1) ... [2020-09-25 11:17:17,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:17:17,479 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:17:17,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:17:17,992 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:17:18,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:17:18,246 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:17:18,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:17:18 WrapperNode [2020-09-25 11:17:18,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:17:18,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:17:18,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:17:18,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:17:18,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:17:18" (1/1) ... [2020-09-25 11:17:18,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:17:18" (1/1) ... [2020-09-25 11:17:18,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:17:18" (1/1) ... [2020-09-25 11:17:18,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:17:18" (1/1) ... [2020-09-25 11:17:18,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:17:18" (1/1) ... [2020-09-25 11:17:18,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:17:18" (1/1) ... [2020-09-25 11:17:18,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:17:18" (1/1) ... [2020-09-25 11:17:18,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:17:18,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:17:18,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:17:18,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:17:18,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:17:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:17:18,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:17:18,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:17:18,458 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 11:17:18,458 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:17:18,458 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 11:17:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:17:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:17:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 11:17:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:17:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:17:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:17:19,830 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:17:19,830 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 11:17:19,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:17:19 BoogieIcfgContainer [2020-09-25 11:17:19,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:17:19,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:17:19,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:17:19,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:17:19,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:17:17" (1/3) ... [2020-09-25 11:17:19,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468c7164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:17:19, skipping insertion in model container [2020-09-25 11:17:19,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:17:18" (2/3) ... [2020-09-25 11:17:19,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468c7164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:17:19, skipping insertion in model container [2020-09-25 11:17:19,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:17:19" (3/3) ... [2020-09-25 11:17:19,854 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label43.c [2020-09-25 11:17:19,867 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:17:19,879 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:17:19,903 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:17:19,940 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:17:19,940 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:17:19,940 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:17:19,940 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:17:19,941 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:17:19,941 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:17:19,941 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:17:19,941 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:17:19,975 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states. [2020-09-25 11:17:19,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-25 11:17:19,996 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:17:19,997 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:17:19,998 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:17:20,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:17:20,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1883432242, now seen corresponding path program 1 times [2020-09-25 11:17:20,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:17:20,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760628592] [2020-09-25 11:17:20,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:17:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:17:20,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:20,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:20,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:21,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:21,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:23,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:24,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:24,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:17:24,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-09-25 11:17:24,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 11:17:24,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4209 [2020-09-25 11:17:24,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:17:24,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:17:24,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:17:24,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 11:17:24,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-25 11:17:24,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 11:17:24,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:17:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:17:24,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:24,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:17:24,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:17:24,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:17:24,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 11:17:24,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:17:24,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:17:24,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:17:24,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:17:24,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 11:17:24,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:17:24,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:17:24,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760628592] [2020-09-25 11:17:24,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:17:24,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 11:17:24,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545135524] [2020-09-25 11:17:24,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 11:17:24,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:17:24,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 11:17:24,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 11:17:24,829 INFO L87 Difference]: Start difference. First operand 527 states. Second operand 4 states. [2020-09-25 11:17:27,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:17:27,341 INFO L93 Difference]: Finished difference Result 1248 states and 1696 transitions. [2020-09-25 11:17:27,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 11:17:27,343 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2020-09-25 11:17:27,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:17:27,390 INFO L225 Difference]: With dead ends: 1248 [2020-09-25 11:17:27,391 INFO L226 Difference]: Without dead ends: 670 [2020-09-25 11:17:27,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:17:27,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2020-09-25 11:17:27,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 621. [2020-09-25 11:17:27,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2020-09-25 11:17:27,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 723 transitions. [2020-09-25 11:17:27,537 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 723 transitions. Word has length 111 [2020-09-25 11:17:27,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:17:27,538 INFO L479 AbstractCegarLoop]: Abstraction has 621 states and 723 transitions. [2020-09-25 11:17:27,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 11:17:27,539 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 723 transitions. [2020-09-25 11:17:27,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-09-25 11:17:27,547 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:17:27,547 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:17:27,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:17:27,548 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:17:27,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:17:27,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1592938585, now seen corresponding path program 1 times [2020-09-25 11:17:27,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:17:27,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159712442] [2020-09-25 11:17:27,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:17:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:17:27,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:27,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:28,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:29,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:29,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:29,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:31,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:32,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:32,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:17:32,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-09-25 11:17:32,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 11:17:32,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 11:17:32,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:17:32,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:17:32,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:17:32,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-25 11:17:32,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 11:17:32,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:17:32,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:17:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:17:32,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:32,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:17:32,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:17:32,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:17:32,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 11:17:32,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:17:32,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:17:32,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:17:32,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:17:32,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:17:32,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 11:17:32,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 11:17:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:17:32,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:32,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:17:32,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 11:17:32,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:17:32,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 11:17:32,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:17:32,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:17:32,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:17:32,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:17:32,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:17:32,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:17:32,870 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:17:32,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [159712442] [2020-09-25 11:17:32,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:17:32,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 11:17:32,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658359530] [2020-09-25 11:17:32,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 11:17:32,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:17:32,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 11:17:32,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:17:32,875 INFO L87 Difference]: Start difference. First operand 621 states and 723 transitions. Second operand 5 states. [2020-09-25 11:17:34,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:17:34,996 INFO L93 Difference]: Finished difference Result 1623 states and 1947 transitions. [2020-09-25 11:17:35,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 11:17:35,001 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2020-09-25 11:17:35,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:17:35,008 INFO L225 Difference]: With dead ends: 1623 [2020-09-25 11:17:35,009 INFO L226 Difference]: Without dead ends: 1024 [2020-09-25 11:17:35,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 11:17:35,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2020-09-25 11:17:35,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 927. [2020-09-25 11:17:35,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 927 states. [2020-09-25 11:17:35,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1114 transitions. [2020-09-25 11:17:35,079 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1114 transitions. Word has length 128 [2020-09-25 11:17:35,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:17:35,080 INFO L479 AbstractCegarLoop]: Abstraction has 927 states and 1114 transitions. [2020-09-25 11:17:35,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 11:17:35,081 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1114 transitions. [2020-09-25 11:17:35,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-09-25 11:17:35,087 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:17:35,088 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:17:35,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:17:35,089 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:17:35,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:17:35,089 INFO L82 PathProgramCache]: Analyzing trace with hash 980037392, now seen corresponding path program 1 times [2020-09-25 11:17:35,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:17:35,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [707641704] [2020-09-25 11:17:35,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:17:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:17:35,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:35,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:35,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:36,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:36,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:36,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:37,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:38,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:38,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:39,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:17:39,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-09-25 11:17:39,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 11:17:39,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4546 [2020-09-25 11:17:39,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:17:39,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:17:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:17:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 11:17:39,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-09-25 11:17:39,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:17:39,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:17:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:17:39,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:39,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:17:39,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:17:39,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:17:39,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 11:17:39,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:17:39,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:17:39,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:17:39,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:17:39,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 11:17:39,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:17:39,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 11:17:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:17:39,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:39,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:39,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:17:39,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 11:17:39,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:17:39,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 11:17:39,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:17:39,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:17:39,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:17:39,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:17:39,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 11:17:39,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:17:39,977 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 11:17:39,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [707641704] [2020-09-25 11:17:39,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:17:39,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 11:17:39,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545095937] [2020-09-25 11:17:39,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 11:17:39,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:17:39,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 11:17:39,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-25 11:17:39,980 INFO L87 Difference]: Start difference. First operand 927 states and 1114 transitions. Second operand 7 states. [2020-09-25 11:17:42,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:17:42,730 INFO L93 Difference]: Finished difference Result 3219 states and 4045 transitions. [2020-09-25 11:17:42,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 11:17:42,731 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 133 [2020-09-25 11:17:42,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:17:42,756 INFO L225 Difference]: With dead ends: 3219 [2020-09-25 11:17:42,757 INFO L226 Difference]: Without dead ends: 2314 [2020-09-25 11:17:42,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2020-09-25 11:17:42,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2020-09-25 11:17:42,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 1960. [2020-09-25 11:17:42,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1960 states. [2020-09-25 11:17:42,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1960 states to 1960 states and 2446 transitions. [2020-09-25 11:17:42,856 INFO L78 Accepts]: Start accepts. Automaton has 1960 states and 2446 transitions. Word has length 133 [2020-09-25 11:17:42,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:17:42,858 INFO L479 AbstractCegarLoop]: Abstraction has 1960 states and 2446 transitions. [2020-09-25 11:17:42,858 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 11:17:42,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1960 states and 2446 transitions. [2020-09-25 11:17:42,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-09-25 11:17:42,869 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:17:42,869 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:17:42,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:17:42,870 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:17:42,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:17:42,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1044088891, now seen corresponding path program 1 times [2020-09-25 11:17:42,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:17:42,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [674670355] [2020-09-25 11:17:42,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:17:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:17:42,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:43,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:17:43,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-09-25 11:17:43,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:17:43,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 360 [2020-09-25 11:17:43,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:17:43,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:17:43,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:17:43,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-25 11:17:43,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 11:17:43,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:17:43,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:17:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:17:43,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:43,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:17:43,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:17:43,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:17:43,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 11:17:43,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:17:43,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:17:43,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:17:43,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:17:43,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:17:43,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:17:43,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 11:17:43,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:17:43,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:43,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:17:43,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 11:17:43,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:17:43,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 11:17:43,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:17:43,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:17:43,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:17:43,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:17:43,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:17:43,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:17:43,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 11:17:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:17:43,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:43,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:17:43,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 11:17:43,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:17:43,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 11:17:43,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:17:43,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:17:43,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:17:43,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:17:43,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 11:17:43,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:17:43,578 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 11:17:43,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [674670355] [2020-09-25 11:17:43,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:17:43,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 11:17:43,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112073350] [2020-09-25 11:17:43,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 11:17:43,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:17:43,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 11:17:43,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:17:43,582 INFO L87 Difference]: Start difference. First operand 1960 states and 2446 transitions. Second operand 8 states. [2020-09-25 11:17:46,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:17:46,934 INFO L93 Difference]: Finished difference Result 4912 states and 6461 transitions. [2020-09-25 11:17:46,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 11:17:46,935 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 146 [2020-09-25 11:17:46,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:17:46,952 INFO L225 Difference]: With dead ends: 4912 [2020-09-25 11:17:46,952 INFO L226 Difference]: Without dead ends: 2974 [2020-09-25 11:17:46,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 11:17:46,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2974 states. [2020-09-25 11:17:47,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2974 to 2905. [2020-09-25 11:17:47,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2905 states. [2020-09-25 11:17:47,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2905 states to 2905 states and 3641 transitions. [2020-09-25 11:17:47,056 INFO L78 Accepts]: Start accepts. Automaton has 2905 states and 3641 transitions. Word has length 146 [2020-09-25 11:17:47,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:17:47,057 INFO L479 AbstractCegarLoop]: Abstraction has 2905 states and 3641 transitions. [2020-09-25 11:17:47,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 11:17:47,057 INFO L276 IsEmpty]: Start isEmpty. Operand 2905 states and 3641 transitions. [2020-09-25 11:17:47,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 11:17:47,068 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:17:47,068 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:17:47,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:17:47,069 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:17:47,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:17:47,069 INFO L82 PathProgramCache]: Analyzing trace with hash -584227059, now seen corresponding path program 1 times [2020-09-25 11:17:47,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:17:47,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067562702] [2020-09-25 11:17:47,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:17:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:17:47,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:47,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:48,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:49,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:17:49,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-09-25 11:17:49,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:17:49,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2529 [2020-09-25 11:17:49,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:17:49,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:17:49,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:17:49,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-09-25 11:17:49,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-09-25 11:17:49,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:17:49,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:17:49,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:17:49,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:49,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:17:49,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:17:49,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:17:49,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:17:49,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:17:49,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:17:49,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:17:49,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:17:49,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:17:49,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:17:49,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 11:17:49,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:17:49,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:49,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:17:49,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:17:49,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:17:49,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 11:17:49,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:17:49,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:17:49,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:17:49,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:17:49,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 11:17:49,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:17:49,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 11:17:49,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:17:49,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:49,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:49,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:17:49,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 11:17:49,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:17:49,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 11:17:49,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:17:49,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:17:49,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:17:49,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:17:49,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 11:17:49,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:17:49,951 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 27 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 11:17:49,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067562702] [2020-09-25 11:17:49,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:17:49,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 11:17:49,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970606956] [2020-09-25 11:17:49,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 11:17:49,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:17:49,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 11:17:49,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 11:17:49,954 INFO L87 Difference]: Start difference. First operand 2905 states and 3641 transitions. Second operand 7 states. [2020-09-25 11:17:53,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:17:53,120 INFO L93 Difference]: Finished difference Result 9776 states and 13484 transitions. [2020-09-25 11:17:53,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 11:17:53,120 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 158 [2020-09-25 11:17:53,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:17:53,168 INFO L225 Difference]: With dead ends: 9776 [2020-09-25 11:17:53,169 INFO L226 Difference]: Without dead ends: 6893 [2020-09-25 11:17:53,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 11:17:53,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6893 states. [2020-09-25 11:17:53,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6893 to 6335. [2020-09-25 11:17:53,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6335 states. [2020-09-25 11:17:53,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6335 states to 6335 states and 8207 transitions. [2020-09-25 11:17:53,398 INFO L78 Accepts]: Start accepts. Automaton has 6335 states and 8207 transitions. Word has length 158 [2020-09-25 11:17:53,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:17:53,398 INFO L479 AbstractCegarLoop]: Abstraction has 6335 states and 8207 transitions. [2020-09-25 11:17:53,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 11:17:53,399 INFO L276 IsEmpty]: Start isEmpty. Operand 6335 states and 8207 transitions. [2020-09-25 11:17:53,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 11:17:53,421 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:17:53,421 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:17:53,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 11:17:53,422 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:17:53,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:17:53,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1465769009, now seen corresponding path program 1 times [2020-09-25 11:17:53,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:17:53,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [70189616] [2020-09-25 11:17:53,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:17:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:17:53,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:53,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:54,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:55,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:56,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:17:56,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 11:17:56,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:17:56,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3148 [2020-09-25 11:17:56,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:17:56,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:17:56,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:17:56,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-25 11:17:56,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-25 11:17:56,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:17:56,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:17:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:17:56,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:56,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:17:56,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:17:56,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:17:56,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:17:56,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:17:56,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:17:56,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:17:56,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:17:56,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:17:56,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:17:56,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 11:17:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:17:56,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:56,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:17:56,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 11:17:56,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:17:56,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 11:17:56,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:17:56,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:17:56,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:17:56,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:17:56,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 11:17:56,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:17:56,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 11:17:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:17:56,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:56,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:17:56,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:17:56,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 11:17:56,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:17:56,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 11:17:56,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:17:56,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:17:56,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:17:56,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:17:56,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 11:17:56,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:17:57,019 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 11:17:57,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [70189616] [2020-09-25 11:17:57,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:17:57,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 11:17:57,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701379448] [2020-09-25 11:17:57,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 11:17:57,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:17:57,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 11:17:57,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:17:57,022 INFO L87 Difference]: Start difference. First operand 6335 states and 8207 transitions. Second operand 8 states. [2020-09-25 11:17:59,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:17:59,606 INFO L93 Difference]: Finished difference Result 14526 states and 19391 transitions. [2020-09-25 11:17:59,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 11:17:59,607 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 161 [2020-09-25 11:17:59,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:17:59,652 INFO L225 Difference]: With dead ends: 14526 [2020-09-25 11:17:59,653 INFO L226 Difference]: Without dead ends: 8223 [2020-09-25 11:17:59,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-09-25 11:17:59,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8223 states. [2020-09-25 11:17:59,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8223 to 7881. [2020-09-25 11:17:59,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7881 states. [2020-09-25 11:17:59,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7881 states to 7881 states and 10219 transitions. [2020-09-25 11:17:59,894 INFO L78 Accepts]: Start accepts. Automaton has 7881 states and 10219 transitions. Word has length 161 [2020-09-25 11:17:59,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:17:59,894 INFO L479 AbstractCegarLoop]: Abstraction has 7881 states and 10219 transitions. [2020-09-25 11:17:59,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 11:17:59,894 INFO L276 IsEmpty]: Start isEmpty. Operand 7881 states and 10219 transitions. [2020-09-25 11:17:59,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 11:17:59,917 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:17:59,917 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:17:59,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 11:17:59,918 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:17:59,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:17:59,918 INFO L82 PathProgramCache]: Analyzing trace with hash -523474928, now seen corresponding path program 1 times [2020-09-25 11:17:59,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:17:59,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [3595132] [2020-09-25 11:17:59,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:17:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 11:17:59,960 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 11:17:59,960 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 11:17:59,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 11:18:00,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 11:18:00 BoogieIcfgContainer [2020-09-25 11:18:00,002 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 11:18:00,006 INFO L168 Benchmark]: Toolchain (without parser) took 42620.81 ms. Allocated memory was 147.8 MB in the beginning and 651.7 MB in the end (delta: 503.8 MB). Free memory was 101.4 MB in the beginning and 109.6 MB in the end (delta: -8.3 MB). Peak memory consumption was 495.6 MB. Max. memory is 7.1 GB. [2020-09-25 11:18:00,008 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-09-25 11:18:00,009 INFO L168 Benchmark]: CACSL2BoogieTranslator took 857.69 ms. Allocated memory was 147.8 MB in the beginning and 206.0 MB in the end (delta: 58.2 MB). Free memory was 100.7 MB in the beginning and 173.5 MB in the end (delta: -72.8 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2020-09-25 11:18:00,010 INFO L168 Benchmark]: Boogie Preprocessor took 127.17 ms. Allocated memory is still 206.0 MB. Free memory was 173.5 MB in the beginning and 168.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2020-09-25 11:18:00,011 INFO L168 Benchmark]: RCFGBuilder took 1464.93 ms. Allocated memory was 206.0 MB in the beginning and 235.9 MB in the end (delta: 29.9 MB). Free memory was 168.1 MB in the beginning and 158.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. [2020-09-25 11:18:00,012 INFO L168 Benchmark]: TraceAbstraction took 40161.14 ms. Allocated memory was 235.9 MB in the beginning and 651.7 MB in the end (delta: 415.8 MB). Free memory was 157.3 MB in the beginning and 109.6 MB in the end (delta: 47.7 MB). Peak memory consumption was 463.4 MB. Max. memory is 7.1 GB. [2020-09-25 11:18:00,016 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 857.69 ms. Allocated memory was 147.8 MB in the beginning and 206.0 MB in the end (delta: 58.2 MB). Free memory was 100.7 MB in the beginning and 173.5 MB in the end (delta: -72.8 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.17 ms. Allocated memory is still 206.0 MB. Free memory was 173.5 MB in the beginning and 168.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1464.93 ms. Allocated memory was 206.0 MB in the beginning and 235.9 MB in the end (delta: 29.9 MB). Free memory was 168.1 MB in the beginning and 158.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 40161.14 ms. Allocated memory was 235.9 MB in the beginning and 651.7 MB in the end (delta: 415.8 MB). Free memory was 157.3 MB in the beginning and 109.6 MB in the end (delta: 47.7 MB). Peak memory consumption was 463.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 427]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L7] int a= 1; [L8] int e= 5; [L9] int d= 4; [L10] int f= 6; [L11] int c= 3; [L14] int u = 21; [L15] int v = 22; [L16] int w = 23; [L17] int x = 24; [L18] int y = 25; [L19] int z = 26; [L22] int a25 = 0; [L23] int a11 = 0; [L24] int a28 = 7; [L25] int a19 = 1; [L26] int a21 = 1; [L27] int a17 = 8; [L603] int output = -1; [L606] COND TRUE 1 [L609] int input; [L610] input = __VERIFIER_nondet_int() [L611] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L614] CALL, EXPR calculate_output(input) [L30] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L35] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L38] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L42] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L47] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L50] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L54] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L59] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L65] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L69] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L74] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L82] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L91] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L95] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L99] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L106] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L113] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L119] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L123] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L130] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L134] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L139] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L143] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L148] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L154] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L159] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L165] COND TRUE (((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1)) [L166] a25 = 1 [L167] a28 = 9 [L168] return 26; [L614] RET, EXPR calculate_output(input) [L614] output = calculate_output(input) [L606] COND TRUE 1 [L609] int input; [L610] input = __VERIFIER_nondet_int() [L611] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L614] CALL, EXPR calculate_output(input) [L30] COND TRUE (((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8)) [L31] a28 = 9 [L32] a11 = 1 [L33] a25 = 1 [L34] return -1; [L614] RET, EXPR calculate_output(input) [L614] output = calculate_output(input) [L606] COND TRUE 1 [L609] int input; [L610] input = __VERIFIER_nondet_int() [L611] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L614] CALL calculate_output(input) [L30] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L35] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L38] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L42] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L47] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L50] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L54] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L59] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L65] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L69] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L74] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L82] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L91] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L95] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L99] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L106] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L113] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L119] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L123] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L130] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L134] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L139] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L143] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L148] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L154] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L159] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L165] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L169] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L175] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L179] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L185] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L187] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L189] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L191] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L194] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L198] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L202] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L212] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L215] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L218] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L223] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L225] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L232] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L234] COND FALSE !(((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1)))) [L237] COND FALSE !((!(a11==1)&&(((a17==8)&&((((!(a25==1)&&(a28==11))||((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1))))&&(input==3))&&(a21==1)))&&!(a19==1)))) [L248] COND FALSE !(((((!(a11==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==5)))&&(a21==1))&&!(a19==1))&&(a17==8))) [L253] COND FALSE !((((a17==9)&&(((((input==1)&&((a25==1)||!(a25==1)))&&(a11==1))&&(a21==1))&&(a19==1)))&&(a28==9))) [L259] COND FALSE !((!(a11==1)&&((a19==1)&&(((((a28==9)&&(input==6))&&(a21==1))&&(a17==8))&&!(a25==1))))) [L261] COND FALSE !(((a17==9)&&((a21==1)&&((a11==1)&&(((input==3)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a19==1)))))) [L276] COND FALSE !(((a28==7)&&((a17==8)&&(!(a25==1)&&((a21==1)&&((a19==1)&&((input==5)&&!(a11==1)))))))) [L280] COND FALSE !(((a28==8)&&((a21==1)&&((!(a11==1)&&(((input==1)&&(a17==8))&&(a19==1)))&&(a25==1))))) [L283] COND FALSE !((((((a17==8)&&(((input==6)&&((a25==1)||!(a25==1)))&&(a21==1)))&&(a28==10))&&!(a11==1))&&(a19==1))) [L286] COND FALSE !(((!(a11==1)&&((!(a19==1)&&(((!(a25==1)&&(a28==11))||(((a28==10)&&!(a25==1))||((a25==1)&&(a28==11))))&&(input==5)))&&(a17==8)))&&(a21==1))) [L291] COND FALSE !(((a17==8)&&(((a21==1)&&(!(a11==1)&&((a25==1)&&((a28==8)&&(input==6)))))&&(a19==1)))) [L293] COND FALSE !((((a19==1)&&((a17==8)&&(((!(a25==1)&&(input==5))&&(a21==1))&&!(a11==1))))&&(a28==11))) [L297] COND FALSE !(((a11==1)&&(((a17==9)&&((a28==9)&&((a19==1)&&(((a25==1)||!(a25==1))&&(input==5)))))&&(a21==1)))) [L309] COND FALSE !((((((((input==3)&&(a19==1))&&(a21==1))&&(a17==8))&&!(a25==1))&&(a28==11))&&!(a11==1))) [L314] COND FALSE !(((a19==1)&&((a21==1)&&((((input==5)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a11==1))&&(a17==9))))) [L328] COND FALSE !((((a19==1)&&(((!(a11==1)&&(((a25==1)||!(a25==1))&&(input==3)))&&(a28==10))&&(a21==1)))&&(a17==8))) [L331] COND FALSE !(((!(a11==1)&&(((((input==4)&&(a17==8))&&!(a25==1))&&(a21==1))&&(a28==11)))&&(a19==1))) [L337] COND FALSE !((((!(a19==1)&&(((input==4)&&(((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1)))||(!(a25==1)&&(a28==11))))&&(a21==1)))&&(a17==8))&&!(a11==1))) [L349] COND FALSE !((!(a11==1)&&(((a17==8)&&((((a25==1)&&(input==4))&&(a19==1))&&(a28==11)))&&(a21==1)))) [L354] COND FALSE !((((((a21==1)&&((((a28==8)&&!(a25==1))||((a28==9)&&(a25==1)))&&(input==6)))&&!(a11==1))&&!(a19==1))&&(a17==8))) [L361] COND FALSE !(((a19==1)&&((((a21==1)&&((!(a25==1)&&(input==3))&&(a17==9)))&&(a28==8))&&(a11==1)))) [L368] COND FALSE !(((a17==8)&&(((a21==1)&&(((input==5)&&((!(a25==1)&&(a28==8))||((a28==9)&&(a25==1))))&&(a19==1)))&&!(a11==1)))) [L375] COND FALSE !(((a19==1)&&(((((a17==8)&&((input==5)&&!(a11==1)))&&(a21==1))&&(a25==1))&&(a28==8)))) [L378] COND FALSE !((((!(a11==1)&&((((a21==1)&&(input==4))&&(a28==10))&&(a17==8)))&&!(a19==1))&&(a25==1))) [L380] COND FALSE !(((a28==8)&&(((a19==1)&&((a11==1)&&(!(a25==1)&&((a17==9)&&(input==6)))))&&(a21==1)))) [L389] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==6)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))&&(a17==8))&&!(a19==1)))) [L394] COND FALSE !((((((!(a25==1)&&((a19==1)&&(input==3)))&&(a28==9))&&(a21==1))&&(a17==8))&&!(a11==1))) [L398] COND FALSE !((((a17==8)&&((((input==4)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9))))&&(a21==1))&&!(a19==1)))&&!(a11==1))) [L402] COND FALSE !((((!(a11==1)&&((((a19==1)&&(input==5))&&(a17==8))&&(a21==1)))&&(a28==9))&&!(a25==1))) [L404] COND FALSE !((((a11==1)&&((a19==1)&&((a21==1)&&(((a17==9)&&(input==5))&&!(a25==1)))))&&(a28==8))) [L407] COND FALSE !((!(a11==1)&&((a21==1)&&(((a19==1)&&((a17==8)&&((a25==1)&&(input==5))))&&(a28==11))))) [L409] COND FALSE !(((a19==1)&&((a17==8)&&(((((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))&&!(a11==1))&&(a21==1))))) [L414] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==7))&&!(a19==1))&&(a21==1))&&(a17==8))) [L417] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==10))&&(a19==1))&&(a21==1))&&(a17==8))) [L420] COND FALSE !(((((((a25==1)&&!(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==8))) [L423] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==7))) [L426] COND TRUE ((((((a25==1)&&(a11==1))&&(a28==9))&&(a19==1))&&(a21==1))&&(a17==8)) [L427] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 527 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 40.0s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 16.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1999 SDtfs, 6606 SDslu, 2276 SDs, 0 SdLazy, 8580 SolverSat, 948 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7881occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 1469 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 21.4s InterpolantComputationTime, 1009 NumberOfCodeBlocks, 1009 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 831 ConstructedInterpolants, 0 QuantifiedInterpolants, 414971 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 122/149 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...