/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=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:45:42,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:45:42,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:45:42,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:45:42,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:45:42,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:45:42,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:45:42,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:45:42,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:45:42,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:45:42,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:45:42,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:45:42,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:45:42,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:45:42,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:45:42,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:45:42,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:45:42,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:45:42,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:45:42,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:45:42,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:45:42,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:45:42,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:45:42,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:45:42,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:45:42,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:45:42,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:45:42,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:45:42,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:45:42,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:45:42,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:45:42,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:45:42,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:45:42,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:45:42,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:45:42,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:45:42,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:45:42,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:45:42,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:45:42,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:45:42,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:45:42,890 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 14:45:42,915 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:45:42,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:45:42,917 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:45:42,917 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:45:42,917 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:45:42,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:45:42,918 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:45:42,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:45:42,918 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:45:42,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:45:42,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:45:42,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:45:42,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:45:42,919 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:45:42,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:45:42,920 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:45:42,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:45:42,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:45:42,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:45:42,921 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:45:42,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:45:42,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:45:42,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:45:42,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:45:42,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:45:42,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:45:42,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:45:42,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:45:42,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:45:42,923 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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;log-additional-information=true; [2020-09-25 14:45:43,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:45:43,481 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:45:43,488 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:45:43,490 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:45:43,490 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:45:43,491 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i [2020-09-25 14:45:43,568 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9ce280575/1a1a99d87317440d87e7cda89d4a8ebe/FLAG8a91dc22f [2020-09-25 14:45:44,126 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:45:44,128 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i [2020-09-25 14:45:44,138 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9ce280575/1a1a99d87317440d87e7cda89d4a8ebe/FLAG8a91dc22f [2020-09-25 14:45:44,455 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9ce280575/1a1a99d87317440d87e7cda89d4a8ebe [2020-09-25 14:45:44,468 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:45:44,475 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:45:44,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:45:44,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:45:44,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:45:44,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:45:44" (1/1) ... [2020-09-25 14:45:44,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cdd711c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:45:44, skipping insertion in model container [2020-09-25 14:45:44,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:45:44" (1/1) ... [2020-09-25 14:45:44,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:45:44,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:45:44,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:45:44,795 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:45:44,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:45:44,842 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:45:44,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:45:44 WrapperNode [2020-09-25 14:45:44,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:45:44,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:45:44,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:45:44,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:45:44,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:45:44" (1/1) ... [2020-09-25 14:45:44,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:45:44" (1/1) ... [2020-09-25 14:45:44,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:45:44" (1/1) ... [2020-09-25 14:45:44,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:45:44" (1/1) ... [2020-09-25 14:45:44,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:45:44" (1/1) ... [2020-09-25 14:45:44,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:45:44" (1/1) ... [2020-09-25 14:45:44,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:45:44" (1/1) ... [2020-09-25 14:45:44,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:45:44,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:45:44,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:45:44,974 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:45:44,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:45:44" (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 14:45:45,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:45:45,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:45:45,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 14:45:45,050 INFO L138 BoogieDeclarations]: Found implementation of procedure insert [2020-09-25 14:45:45,050 INFO L138 BoogieDeclarations]: Found implementation of procedure elem_exists [2020-09-25 14:45:45,050 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:45:45,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:45:45,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 14:45:45,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:45:45,051 INFO L130 BoogieDeclarations]: Found specification of procedure insert [2020-09-25 14:45:45,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:45:45,052 INFO L130 BoogieDeclarations]: Found specification of procedure elem_exists [2020-09-25 14:45:45,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:45:45,052 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:45:45,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:45:45,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:45:45,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:45:45,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:45:45,553 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:45:45,554 INFO L295 CfgBuilder]: Removed 10 assume(true) statements. [2020-09-25 14:45:45,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:45:45 BoogieIcfgContainer [2020-09-25 14:45:45,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:45:45,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:45:45,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:45:45,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:45:45,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:45:44" (1/3) ... [2020-09-25 14:45:45,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b412da6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:45:45, skipping insertion in model container [2020-09-25 14:45:45,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:45:44" (2/3) ... [2020-09-25 14:45:45,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b412da6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:45:45, skipping insertion in model container [2020-09-25 14:45:45,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:45:45" (3/3) ... [2020-09-25 14:45:45,570 INFO L109 eAbstractionObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_ground.i [2020-09-25 14:45:45,581 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:45:45,591 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:45:45,609 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:45:45,639 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:45:45,639 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:45:45,639 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:45:45,639 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:45:45,639 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:45:45,639 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:45:45,640 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:45:45,640 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:45:45,664 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states. [2020-09-25 14:45:45,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 14:45:45,671 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:45:45,671 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] [2020-09-25 14:45:45,672 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:45:45,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:45:45,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1588916751, now seen corresponding path program 1 times [2020-09-25 14:45:45,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:45:45,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1072613656] [2020-09-25 14:45:45,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:45:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:45:45,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:45,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:45,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:46,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:45:46,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 14:45:46,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:45:46,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 542 [2020-09-25 14:45:46,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:45:46,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:45:46,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:45:46,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 14:45:46,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:45:46,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 14:45:46,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:45:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:45:46,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:46,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:45:46,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:45:46,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:45:46,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:45:46,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:45:46,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:45:46,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:45:46,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:45:46,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:45:46,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:45:46,485 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 14:45:46,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1072613656] [2020-09-25 14:45:46,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:45:46,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:45:46,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009981579] [2020-09-25 14:45:46,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:45:46,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:45:46,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:45:46,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:45:46,512 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 5 states. [2020-09-25 14:45:46,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:45:46,929 INFO L93 Difference]: Finished difference Result 266 states and 324 transitions. [2020-09-25 14:45:46,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:45:46,931 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-09-25 14:45:46,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:45:46,946 INFO L225 Difference]: With dead ends: 266 [2020-09-25 14:45:46,946 INFO L226 Difference]: Without dead ends: 135 [2020-09-25 14:45:46,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:45:46,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-09-25 14:45:47,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 122. [2020-09-25 14:45:47,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-09-25 14:45:47,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 134 transitions. [2020-09-25 14:45:47,020 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 134 transitions. Word has length 23 [2020-09-25 14:45:47,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:45:47,021 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 134 transitions. [2020-09-25 14:45:47,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:45:47,022 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 134 transitions. [2020-09-25 14:45:47,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-25 14:45:47,025 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:45:47,026 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] [2020-09-25 14:45:47,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:45:47,026 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:45:47,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:45:47,027 INFO L82 PathProgramCache]: Analyzing trace with hash 23578911, now seen corresponding path program 1 times [2020-09-25 14:45:47,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:45:47,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171690110] [2020-09-25 14:45:47,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:45:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:45:47,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:47,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:47,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:47,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:47,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:47,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:52,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:45:52,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 14:45:52,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:45:52,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 14:45:52,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:45:52,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:45:52,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:45:52,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 14:45:52,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 14:45:52,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:45:52,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:45:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:45:52,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:52,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:45:52,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:45:52,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:45:52,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 14:45:52,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:45:52,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:45:52,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:45:52,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:45:52,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:45:52,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:45:52,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 14:45:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:45:52,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:52,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:52,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:45:52,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:45:52,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:45:52,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 14:45:52,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:45:52,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:45:52,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:45:52,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:45:52,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:45:52,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:45:52,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 14:45:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:45:52,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:52,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:45:52,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 14:45:52,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:45:52,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 14:45:52,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:45:52,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:45:52,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:45:52,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:45:52,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 14:45:52,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:45:52,297 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 14:45:52,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [171690110] [2020-09-25 14:45:52,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:45:52,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 14:45:52,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760447467] [2020-09-25 14:45:52,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 14:45:52,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:45:52,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 14:45:52,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:45:52,301 INFO L87 Difference]: Start difference. First operand 122 states and 134 transitions. Second operand 11 states. [2020-09-25 14:45:53,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:45:53,312 INFO L93 Difference]: Finished difference Result 341 states and 389 transitions. [2020-09-25 14:45:53,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 14:45:53,313 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 59 [2020-09-25 14:45:53,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:45:53,328 INFO L225 Difference]: With dead ends: 341 [2020-09-25 14:45:53,328 INFO L226 Difference]: Without dead ends: 263 [2020-09-25 14:45:53,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2020-09-25 14:45:53,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-09-25 14:45:53,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 162. [2020-09-25 14:45:53,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-09-25 14:45:53,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 182 transitions. [2020-09-25 14:45:53,385 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 182 transitions. Word has length 59 [2020-09-25 14:45:53,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:45:53,386 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 182 transitions. [2020-09-25 14:45:53,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 14:45:53,386 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 182 transitions. [2020-09-25 14:45:53,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-25 14:45:53,392 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:45:53,393 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:53,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:45:53,393 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:45:53,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:45:53,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1272166002, now seen corresponding path program 1 times [2020-09-25 14:45:53,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:45:53,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [36487107] [2020-09-25 14:45:53,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:45:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:45:53,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:53,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:53,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:53,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:53,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:53,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:54,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:54,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:54,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:55,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:55,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:58,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:45:58,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 14:45:58,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 14:45:58,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 14:45:58,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:45:58,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:45:58,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:45:58,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 14:45:58,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 14:45:58,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:45:58,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:45:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:45:58,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:58,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:45:58,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:45:58,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:45:58,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:45:58,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:45:58,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:45:58,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:45:58,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:45:58,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:45:58,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:45:58,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 14:45:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:45:58,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:58,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:58,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:45:58,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:45:58,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:45:58,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 14:45:58,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:45:58,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:45:58,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:45:58,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:45:58,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:45:58,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:45:58,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 14:45:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:45:58,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:58,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:45:58,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 14:45:58,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:45:58,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 14:45:58,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:45:58,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:45:58,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:45:58,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:45:58,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 14:45:58,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:45:58,617 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:45:58,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [36487107] [2020-09-25 14:45:58,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:45:58,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 14:45:58,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555597615] [2020-09-25 14:45:58,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 14:45:58,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:45:58,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 14:45:58,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-25 14:45:58,620 INFO L87 Difference]: Start difference. First operand 162 states and 182 transitions. Second operand 12 states. [2020-09-25 14:45:59,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:45:59,374 INFO L93 Difference]: Finished difference Result 317 states and 358 transitions. [2020-09-25 14:45:59,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 14:45:59,375 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 65 [2020-09-25 14:45:59,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:45:59,377 INFO L225 Difference]: With dead ends: 317 [2020-09-25 14:45:59,378 INFO L226 Difference]: Without dead ends: 207 [2020-09-25 14:45:59,379 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=534, Unknown=0, NotChecked=0, Total=650 [2020-09-25 14:45:59,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2020-09-25 14:45:59,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 152. [2020-09-25 14:45:59,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-09-25 14:45:59,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 169 transitions. [2020-09-25 14:45:59,393 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 169 transitions. Word has length 65 [2020-09-25 14:45:59,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:45:59,393 INFO L479 AbstractCegarLoop]: Abstraction has 152 states and 169 transitions. [2020-09-25 14:45:59,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 14:45:59,394 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 169 transitions. [2020-09-25 14:45:59,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 14:45:59,396 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:45:59,397 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:59,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:45:59,397 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:45:59,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:45:59,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1668970121, now seen corresponding path program 1 times [2020-09-25 14:45:59,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:45:59,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [72188390] [2020-09-25 14:45:59,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:45:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:45:59,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:59,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:59,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:59,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:59,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:45:59,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:04,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:04,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 14:46:04,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:46:04,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 14:46:04,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:04,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:04,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:46:04,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 14:46:04,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 14:46:04,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:04,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:46:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:04,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:04,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:04,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:46:04,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:04,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:46:04,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:04,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:04,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:46:04,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:46:04,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:46:04,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:04,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 14:46:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:04,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:04,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:04,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:46:04,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:04,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:46:04,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:04,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:04,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:46:04,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:46:04,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:46:04,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:04,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-25 14:46:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:04,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:04,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:04,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 14:46:04,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:04,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 14:46:04,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:04,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:04,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:46:04,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:46:04,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:46:04,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:04,517 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 14:46:04,519 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [72188390] [2020-09-25 14:46:04,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:46:04,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 14:46:04,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354961574] [2020-09-25 14:46:04,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:46:04,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:46:04,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:46:04,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:46:04,522 INFO L87 Difference]: Start difference. First operand 152 states and 169 transitions. Second operand 7 states. [2020-09-25 14:46:04,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:46:04,911 INFO L93 Difference]: Finished difference Result 382 states and 432 transitions. [2020-09-25 14:46:04,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 14:46:04,912 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2020-09-25 14:46:04,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:46:04,916 INFO L225 Difference]: With dead ends: 382 [2020-09-25 14:46:04,917 INFO L226 Difference]: Without dead ends: 261 [2020-09-25 14:46:04,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:46:04,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-09-25 14:46:04,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 178. [2020-09-25 14:46:04,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-09-25 14:46:04,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 199 transitions. [2020-09-25 14:46:04,949 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 199 transitions. Word has length 71 [2020-09-25 14:46:04,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:46:04,949 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 199 transitions. [2020-09-25 14:46:04,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:46:04,949 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 199 transitions. [2020-09-25 14:46:04,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-25 14:46:04,955 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:46:04,955 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 14:46:04,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:46:04,957 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:46:04,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:46:04,957 INFO L82 PathProgramCache]: Analyzing trace with hash 112590486, now seen corresponding path program 1 times [2020-09-25 14:46:04,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:46:04,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [347341246] [2020-09-25 14:46:04,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:46:04,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:04,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:05,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:05,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:05,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:06,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:06,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:09,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:09,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-25 14:46:09,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:46:09,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 14:46:09,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:09,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:09,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:46:09,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 14:46:09,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 14:46:09,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:10,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:46:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:10,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:10,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:10,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:46:10,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:10,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:46:10,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:10,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:10,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:46:10,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:46:10,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:46:10,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:10,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 14:46:10,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:10,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:10,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:10,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:46:10,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:10,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:46:10,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:10,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:10,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:46:10,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:46:10,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:46:10,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:10,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 14:46:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:10,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:10,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:10,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:46:10,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:10,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:46:10,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:10,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:10,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:46:10,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:46:10,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:46:10,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:10,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-25 14:46:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:10,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:10,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:10,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 14:46:10,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:10,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:46:10,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:10,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:10,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:46:10,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:46:10,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:46:10,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:10,144 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-25 14:46:10,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [347341246] [2020-09-25 14:46:10,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:46:10,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 14:46:10,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307882854] [2020-09-25 14:46:10,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:46:10,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:46:10,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:46:10,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:46:10,148 INFO L87 Difference]: Start difference. First operand 178 states and 199 transitions. Second operand 9 states. [2020-09-25 14:46:10,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:46:10,563 INFO L93 Difference]: Finished difference Result 357 states and 404 transitions. [2020-09-25 14:46:10,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 14:46:10,564 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-09-25 14:46:10,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:46:10,567 INFO L225 Difference]: With dead ends: 357 [2020-09-25 14:46:10,567 INFO L226 Difference]: Without dead ends: 332 [2020-09-25 14:46:10,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-09-25 14:46:10,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-09-25 14:46:10,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 243. [2020-09-25 14:46:10,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-09-25 14:46:10,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 274 transitions. [2020-09-25 14:46:10,587 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 274 transitions. Word has length 99 [2020-09-25 14:46:10,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:46:10,588 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 274 transitions. [2020-09-25 14:46:10,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:46:10,589 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 274 transitions. [2020-09-25 14:46:10,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-09-25 14:46:10,595 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:46:10,596 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 14:46:10,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 14:46:10,596 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:46:10,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:46:10,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1325819002, now seen corresponding path program 1 times [2020-09-25 14:46:10,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:46:10,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291841220] [2020-09-25 14:46:10,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:46:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:10,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:10,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:10,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:10,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:10,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:12,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:15,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:15,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-25 14:46:15,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:46:15,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 14:46:15,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:15,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:15,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:46:15,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 14:46:15,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 14:46:15,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:15,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:46:15,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:15,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:15,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:15,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:46:15,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:15,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:46:15,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:15,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:15,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:46:15,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:46:15,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:46:15,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:15,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 14:46:15,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:15,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:15,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:15,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:46:15,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:15,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:46:15,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:15,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:15,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:46:15,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:46:15,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:46:15,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:15,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 14:46:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:15,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:15,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:15,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 14:46:15,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:15,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 14:46:15,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:15,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:15,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:46:15,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:46:15,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 14:46:15,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:15,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-25 14:46:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:15,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:15,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:15,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:46:15,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:15,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:46:15,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:15,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:15,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:46:15,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 14:46:15,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:46:15,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:15,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-25 14:46:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:15,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:15,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:15,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 14:46:15,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:15,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:46:15,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:15,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:15,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:46:15,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 14:46:15,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:46:15,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:46:15,812 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 14:46:15,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1291841220] [2020-09-25 14:46:15,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:46:15,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 14:46:15,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190687433] [2020-09-25 14:46:15,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:46:15,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:46:15,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:46:15,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:46:15,816 INFO L87 Difference]: Start difference. First operand 243 states and 274 transitions. Second operand 10 states. [2020-09-25 14:46:16,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:46:16,394 INFO L93 Difference]: Finished difference Result 406 states and 459 transitions. [2020-09-25 14:46:16,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 14:46:16,398 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 100 [2020-09-25 14:46:16,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:46:16,400 INFO L225 Difference]: With dead ends: 406 [2020-09-25 14:46:16,401 INFO L226 Difference]: Without dead ends: 257 [2020-09-25 14:46:16,401 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2020-09-25 14:46:16,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-09-25 14:46:16,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 245. [2020-09-25 14:46:16,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-25 14:46:16,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 273 transitions. [2020-09-25 14:46:16,413 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 273 transitions. Word has length 100 [2020-09-25 14:46:16,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:46:16,414 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 273 transitions. [2020-09-25 14:46:16,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:46:16,414 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 273 transitions. [2020-09-25 14:46:16,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-09-25 14:46:16,416 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:46:16,416 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:46:16,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 14:46:16,416 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:46:16,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:46:16,417 INFO L82 PathProgramCache]: Analyzing trace with hash 106272181, now seen corresponding path program 1 times [2020-09-25 14:46:16,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:46:16,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [867177426] [2020-09-25 14:46:16,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:46:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:16,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:16,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:16,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:16,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:16,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:17,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:21,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:21,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-09-25 14:46:21,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:46:21,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 14:46:21,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:21,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:21,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 14:46:21,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 14:46:21,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:46:21,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:21,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:46:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:21,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:21,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:21,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:46:21,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:21,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:46:21,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:21,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:21,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:46:21,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:46:21,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:46:21,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:21,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 14:46:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:21,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:21,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:21,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:46:21,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:21,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:46:21,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:21,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:21,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:46:21,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:46:21,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:46:21,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:21,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 14:46:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:21,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:21,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:21,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 14:46:21,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:21,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 14:46:21,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:21,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:21,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:46:21,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:46:21,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 14:46:21,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:21,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-25 14:46:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:21,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:21,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:21,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:46:21,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:21,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 14:46:21,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:21,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:21,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:46:21,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 14:46:21,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 14:46:21,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:46:21,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:46:21,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:21,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:21,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:21,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 14:46:21,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:21,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:46:21,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:21,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:21,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:46:21,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 14:46:21,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:46:21,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:46:21,739 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 14:46:21,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [867177426] [2020-09-25 14:46:21,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:46:21,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 14:46:21,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397297841] [2020-09-25 14:46:21,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 14:46:21,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:46:21,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 14:46:21,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-09-25 14:46:21,742 INFO L87 Difference]: Start difference. First operand 245 states and 273 transitions. Second operand 12 states. [2020-09-25 14:46:22,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:46:22,563 INFO L93 Difference]: Finished difference Result 457 states and 516 transitions. [2020-09-25 14:46:22,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 14:46:22,564 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 106 [2020-09-25 14:46:22,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:46:22,566 INFO L225 Difference]: With dead ends: 457 [2020-09-25 14:46:22,567 INFO L226 Difference]: Without dead ends: 312 [2020-09-25 14:46:22,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=582, Unknown=0, NotChecked=0, Total=702 [2020-09-25 14:46:22,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-25 14:46:22,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 267. [2020-09-25 14:46:22,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-09-25 14:46:22,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 301 transitions. [2020-09-25 14:46:22,585 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 301 transitions. Word has length 106 [2020-09-25 14:46:22,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:46:22,585 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 301 transitions. [2020-09-25 14:46:22,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 14:46:22,586 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 301 transitions. [2020-09-25 14:46:22,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-09-25 14:46:22,587 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:46:22,588 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 14:46:22,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 14:46:22,588 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:46:22,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:46:22,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1281866795, now seen corresponding path program 1 times [2020-09-25 14:46:22,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:46:22,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166516026] [2020-09-25 14:46:22,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:46:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:22,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:22,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:22,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:23,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:23,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-09-25 14:46:23,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:46:23,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1178 [2020-09-25 14:46:23,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:23,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:23,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:46:23,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-25 14:46:23,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:46:23,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:23,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:46:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:23,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:23,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:23,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:46:23,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:23,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:46:23,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:23,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:23,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:46:23,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:46:23,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:46:23,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:23,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 14:46:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:23,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:23,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:23,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:46:23,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:23,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:46:23,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:23,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:23,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:46:23,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:46:23,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 14:46:23,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:23,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 14:46:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:23,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:23,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:23,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 14:46:23,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:23,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:46:23,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:23,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:23,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:46:23,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 14:46:23,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:46:23,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:23,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-25 14:46:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:23,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:23,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:23,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 14:46:23,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:23,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:46:23,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:23,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:46:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 14:46:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:46:23,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:23,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 14:46:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:23,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:23,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:23,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 14:46:23,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:23,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:46:23,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:23,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:23,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:46:23,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 14:46:23,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:46:23,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:23,963 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-25 14:46:23,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166516026] [2020-09-25 14:46:23,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:46:23,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 14:46:23,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995372732] [2020-09-25 14:46:23,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:46:23,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:46:23,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:46:23,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:46:23,967 INFO L87 Difference]: Start difference. First operand 267 states and 301 transitions. Second operand 6 states. [2020-09-25 14:46:24,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:46:24,199 INFO L93 Difference]: Finished difference Result 481 states and 547 transitions. [2020-09-25 14:46:24,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:46:24,200 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2020-09-25 14:46:24,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:46:24,202 INFO L225 Difference]: With dead ends: 481 [2020-09-25 14:46:24,202 INFO L226 Difference]: Without dead ends: 294 [2020-09-25 14:46:24,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:46:24,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-09-25 14:46:24,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 281. [2020-09-25 14:46:24,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-09-25 14:46:24,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 319 transitions. [2020-09-25 14:46:24,218 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 319 transitions. Word has length 109 [2020-09-25 14:46:24,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:46:24,218 INFO L479 AbstractCegarLoop]: Abstraction has 281 states and 319 transitions. [2020-09-25 14:46:24,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:46:24,218 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 319 transitions. [2020-09-25 14:46:24,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-25 14:46:24,220 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:46:24,220 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:46:24,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 14:46:24,221 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:46:24,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:46:24,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1440288667, now seen corresponding path program 1 times [2020-09-25 14:46:24,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:46:24,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1318969180] [2020-09-25 14:46:24,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:46:24,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:24,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:24,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:24,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:24,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:24,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:24,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:29,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:29,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 14:46:29,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 14:46:29,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 14:46:29,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:29,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:29,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:46:29,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 14:46:29,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 14:46:29,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:46:29,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:46:29,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:29,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:29,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:29,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:46:29,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:29,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:46:29,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:29,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:29,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:46:29,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:46:29,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:46:29,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:29,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 14:46:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:29,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:29,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:29,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 14:46:29,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:29,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 14:46:29,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:29,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:29,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:46:29,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 14:46:29,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 14:46:29,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:46:29,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-25 14:46:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:29,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:29,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:29,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 14:46:29,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:29,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:46:29,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:29,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:29,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:46:29,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 14:46:29,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:46:29,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:29,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-09-25 14:46:29,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:29,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:29,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:29,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 14:46:29,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:29,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:46:29,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:29,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:46:29,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 14:46:29,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:46:29,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:29,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 14:46:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:46:29,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:46:29,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:46:29,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 14:46:29,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:46:29,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:46:29,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:46:29,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:46:29,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:46:29,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 14:46:29,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:46:29,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:46:29,478 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-25 14:46:29,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1318969180] [2020-09-25 14:46:29,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:46:29,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 14:46:29,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491236230] [2020-09-25 14:46:29,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:46:29,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:46:29,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:46:29,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:46:29,490 INFO L87 Difference]: Start difference. First operand 281 states and 319 transitions. Second operand 8 states. [2020-09-25 14:46:29,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:46:29,862 INFO L93 Difference]: Finished difference Result 348 states and 396 transitions. [2020-09-25 14:46:29,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 14:46:29,863 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 112 [2020-09-25 14:46:29,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:46:29,863 INFO L225 Difference]: With dead ends: 348 [2020-09-25 14:46:29,863 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 14:46:29,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 14:46:29,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 14:46:29,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 14:46:29,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 14:46:29,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 14:46:29,867 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 112 [2020-09-25 14:46:29,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:46:29,867 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 14:46:29,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:46:29,868 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 14:46:29,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 14:46:29,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 14:46:29,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 14:46:30,419 INFO L271 CegarLoopResult]: At program point elem_existsENTRY(lines 9 15) the Hoare annotation is: true [2020-09-25 14:46:30,419 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-25 14:46:30,419 INFO L268 CegarLoopResult]: For program point L9(lines 9 15) no Hoare annotation was computed. [2020-09-25 14:46:30,419 INFO L268 CegarLoopResult]: For program point elem_existsFINAL(lines 9 15) no Hoare annotation was computed. [2020-09-25 14:46:30,420 INFO L268 CegarLoopResult]: For program point L9-1(lines 9 15) no Hoare annotation was computed. [2020-09-25 14:46:30,420 INFO L268 CegarLoopResult]: For program point L11-3(lines 11 13) no Hoare annotation was computed. [2020-09-25 14:46:30,420 INFO L268 CegarLoopResult]: For program point L11-4(line 11) no Hoare annotation was computed. [2020-09-25 14:46:30,420 INFO L268 CegarLoopResult]: For program point L11-5(line 11) no Hoare annotation was computed. [2020-09-25 14:46:30,420 INFO L264 CegarLoopResult]: At program point L11-6(lines 11 13) the Hoare annotation is: (let ((.cse0 (= elem_exists_~size |elem_exists_#in~size|))) (or (not (<= |elem_exists_#in~size| 0)) (and (<= elem_exists_~i~0 0) (<= 0 elem_exists_~i~0) .cse0) (and .cse0 (not (= |elem_exists_#in~size| 0))))) [2020-09-25 14:46:30,420 INFO L268 CegarLoopResult]: For program point L11-7(lines 11 13) no Hoare annotation was computed. [2020-09-25 14:46:30,421 INFO L268 CegarLoopResult]: For program point elem_existsEXIT(lines 9 15) no Hoare annotation was computed. [2020-09-25 14:46:30,421 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 14:46:30,421 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-09-25 14:46:30,421 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 14:46:30,421 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-09-25 14:46:30,421 INFO L268 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-09-25 14:46:30,421 INFO L268 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-09-25 14:46:30,422 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 14:46:30,422 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 14:46:30,422 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 14:46:30,422 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-25 14:46:30,422 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 14:46:30,422 INFO L271 CegarLoopResult]: At program point insertENTRY(lines 5 8) the Hoare annotation is: true [2020-09-25 14:46:30,422 INFO L268 CegarLoopResult]: For program point insertFINAL(lines 5 8) no Hoare annotation was computed. [2020-09-25 14:46:30,423 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 14:46:30,423 INFO L268 CegarLoopResult]: For program point L5(lines 5 8) no Hoare annotation was computed. [2020-09-25 14:46:30,423 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 14:46:30,423 INFO L268 CegarLoopResult]: For program point L5-1(lines 5 8) no Hoare annotation was computed. [2020-09-25 14:46:30,423 INFO L268 CegarLoopResult]: For program point insertEXIT(lines 5 8) no Hoare annotation was computed. [2020-09-25 14:46:30,423 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 14:46:30,423 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 14:46:30,424 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 14:46:30,424 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 14:46:30,424 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 16 56) no Hoare annotation was computed. [2020-09-25 14:46:30,424 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-25 14:46:30,424 INFO L268 CegarLoopResult]: For program point L52-1(line 52) no Hoare annotation was computed. [2020-09-25 14:46:30,424 INFO L264 CegarLoopResult]: At program point L52-2(line 52) the Hoare annotation is: false [2020-09-25 14:46:30,424 INFO L268 CegarLoopResult]: For program point L52-3(line 52) no Hoare annotation was computed. [2020-09-25 14:46:30,425 INFO L268 CegarLoopResult]: For program point L52-4(line 52) no Hoare annotation was computed. [2020-09-25 14:46:30,425 INFO L268 CegarLoopResult]: For program point L44-2(lines 44 48) no Hoare annotation was computed. [2020-09-25 14:46:30,425 INFO L268 CegarLoopResult]: For program point L44-3(line 44) no Hoare annotation was computed. [2020-09-25 14:46:30,425 INFO L268 CegarLoopResult]: For program point L44-4(line 44) no Hoare annotation was computed. [2020-09-25 14:46:30,425 INFO L264 CegarLoopResult]: At program point L44-5(lines 44 48) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (= main_~n~0 0)) [2020-09-25 14:46:30,425 INFO L268 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-09-25 14:46:30,425 INFO L268 CegarLoopResult]: For program point L36-3(lines 36 39) no Hoare annotation was computed. [2020-09-25 14:46:30,426 INFO L268 CegarLoopResult]: For program point L36-4(line 36) no Hoare annotation was computed. [2020-09-25 14:46:30,426 INFO L268 CegarLoopResult]: For program point L36-5(line 36) no Hoare annotation was computed. [2020-09-25 14:46:30,426 INFO L264 CegarLoopResult]: At program point L36-6(lines 36 39) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (= main_~n~0 0)) [2020-09-25 14:46:30,426 INFO L268 CegarLoopResult]: For program point L36-7(lines 36 39) no Hoare annotation was computed. [2020-09-25 14:46:30,426 INFO L268 CegarLoopResult]: For program point L28-2(lines 28 32) no Hoare annotation was computed. [2020-09-25 14:46:30,426 INFO L268 CegarLoopResult]: For program point L28-3(line 28) no Hoare annotation was computed. [2020-09-25 14:46:30,426 INFO L268 CegarLoopResult]: For program point L28-4(line 28) no Hoare annotation was computed. [2020-09-25 14:46:30,427 INFO L264 CegarLoopResult]: At program point L28-5(lines 28 32) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (= main_~n~0 0)) [2020-09-25 14:46:30,427 INFO L268 CegarLoopResult]: For program point L28-6(lines 28 32) no Hoare annotation was computed. [2020-09-25 14:46:30,427 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 14:46:30,427 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-09-25 14:46:30,427 INFO L268 CegarLoopResult]: For program point L45-3(lines 45 47) no Hoare annotation was computed. [2020-09-25 14:46:30,427 INFO L268 CegarLoopResult]: For program point L45-4(line 45) no Hoare annotation was computed. [2020-09-25 14:46:30,428 INFO L268 CegarLoopResult]: For program point L45-5(line 45) no Hoare annotation was computed. [2020-09-25 14:46:30,428 INFO L264 CegarLoopResult]: At program point L45-6(lines 45 47) the Hoare annotation is: false [2020-09-25 14:46:30,428 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-25 14:46:30,428 INFO L268 CegarLoopResult]: For program point L29-3(lines 29 31) no Hoare annotation was computed. [2020-09-25 14:46:30,428 INFO L268 CegarLoopResult]: For program point L29-4(line 29) no Hoare annotation was computed. [2020-09-25 14:46:30,428 INFO L268 CegarLoopResult]: For program point L29-5(line 29) no Hoare annotation was computed. [2020-09-25 14:46:30,428 INFO L264 CegarLoopResult]: At program point L29-6(lines 29 31) the Hoare annotation is: false [2020-09-25 14:46:30,429 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-25 14:46:30,429 INFO L268 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-09-25 14:46:30,429 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 16 56) no Hoare annotation was computed. [2020-09-25 14:46:30,429 INFO L264 CegarLoopResult]: At program point L46-2(line 46) the Hoare annotation is: false [2020-09-25 14:46:30,429 INFO L268 CegarLoopResult]: For program point L46-3(line 46) no Hoare annotation was computed. [2020-09-25 14:46:30,429 INFO L268 CegarLoopResult]: For program point L46-4(line 46) no Hoare annotation was computed. [2020-09-25 14:46:30,429 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-09-25 14:46:30,430 INFO L268 CegarLoopResult]: For program point L38-1(line 38) no Hoare annotation was computed. [2020-09-25 14:46:30,430 INFO L268 CegarLoopResult]: For program point L38-2(line 38) no Hoare annotation was computed. [2020-09-25 14:46:30,430 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-25 14:46:30,430 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 16 56) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-09-25 14:46:30,430 INFO L268 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2020-09-25 14:46:30,430 INFO L264 CegarLoopResult]: At program point L30-2(line 30) the Hoare annotation is: false [2020-09-25 14:46:30,430 INFO L268 CegarLoopResult]: For program point L30-3(line 30) no Hoare annotation was computed. [2020-09-25 14:46:30,431 INFO L268 CegarLoopResult]: For program point L30-4(line 30) no Hoare annotation was computed. [2020-09-25 14:46:30,431 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 14:46:30,431 INFO L268 CegarLoopResult]: For program point L22-3(lines 22 25) no Hoare annotation was computed. [2020-09-25 14:46:30,431 INFO L268 CegarLoopResult]: For program point L22-4(line 22) no Hoare annotation was computed. [2020-09-25 14:46:30,431 INFO L268 CegarLoopResult]: For program point L22-5(line 22) no Hoare annotation was computed. [2020-09-25 14:46:30,431 INFO L264 CegarLoopResult]: At program point L22-6(lines 22 25) the Hoare annotation is: (= main_~n~0 0) [2020-09-25 14:46:30,431 INFO L268 CegarLoopResult]: For program point L22-7(lines 22 25) no Hoare annotation was computed. [2020-09-25 14:46:30,431 INFO L268 CegarLoopResult]: For program point L40-2(lines 40 49) no Hoare annotation was computed. [2020-09-25 14:46:30,432 INFO L268 CegarLoopResult]: For program point L40-3(line 40) no Hoare annotation was computed. [2020-09-25 14:46:30,432 INFO L268 CegarLoopResult]: For program point L40-4(line 40) no Hoare annotation was computed. [2020-09-25 14:46:30,432 INFO L264 CegarLoopResult]: At program point L40-5(lines 40 49) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (= main_~n~0 0)) [2020-09-25 14:46:30,432 INFO L268 CegarLoopResult]: For program point L40-6(lines 40 49) no Hoare annotation was computed. [2020-09-25 14:46:30,432 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 14:46:30,432 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-25 14:46:30,432 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-09-25 14:46:30,432 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-09-25 14:46:30,432 INFO L264 CegarLoopResult]: At program point L41-1(line 41) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (= main_~n~0 0)) [2020-09-25 14:46:30,433 INFO L268 CegarLoopResult]: For program point L41-2(line 41) no Hoare annotation was computed. [2020-09-25 14:46:30,433 INFO L268 CegarLoopResult]: For program point L41-3(lines 41 43) no Hoare annotation was computed. [2020-09-25 14:46:30,433 INFO L268 CegarLoopResult]: For program point L41-4(line 41) no Hoare annotation was computed. [2020-09-25 14:46:30,433 INFO L268 CegarLoopResult]: For program point L41-5(line 41) no Hoare annotation was computed. [2020-09-25 14:46:30,433 INFO L268 CegarLoopResult]: For program point L41-7(line 41) no Hoare annotation was computed. [2020-09-25 14:46:30,433 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-09-25 14:46:30,433 INFO L268 CegarLoopResult]: For program point L41-8(line 41) no Hoare annotation was computed. [2020-09-25 14:46:30,433 INFO L268 CegarLoopResult]: For program point L41-9(lines 41 43) no Hoare annotation was computed. [2020-09-25 14:46:30,434 INFO L268 CegarLoopResult]: For program point L33-1(line 33) no Hoare annotation was computed. [2020-09-25 14:46:30,434 INFO L268 CegarLoopResult]: For program point L33-2(line 33) no Hoare annotation was computed. [2020-09-25 14:46:30,434 INFO L268 CegarLoopResult]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2020-09-25 14:46:30,434 INFO L268 CegarLoopResult]: For program point L50-3(line 50) no Hoare annotation was computed. [2020-09-25 14:46:30,434 INFO L268 CegarLoopResult]: For program point L50-4(line 50) no Hoare annotation was computed. [2020-09-25 14:46:30,434 INFO L264 CegarLoopResult]: At program point L50-5(lines 50 54) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~n~0 0)) [2020-09-25 14:46:30,434 INFO L268 CegarLoopResult]: For program point L50-6(lines 50 54) no Hoare annotation was computed. [2020-09-25 14:46:30,434 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-09-25 14:46:30,435 INFO L264 CegarLoopResult]: At program point L42-1(line 42) the Hoare annotation is: false [2020-09-25 14:46:30,435 INFO L268 CegarLoopResult]: For program point L42-2(line 42) no Hoare annotation was computed. [2020-09-25 14:46:30,435 INFO L268 CegarLoopResult]: For program point L42-3(line 42) no Hoare annotation was computed. [2020-09-25 14:46:30,435 INFO L268 CegarLoopResult]: For program point L42-4(line 42) no Hoare annotation was computed. [2020-09-25 14:46:30,435 INFO L268 CegarLoopResult]: For program point L42-5(line 42) no Hoare annotation was computed. [2020-09-25 14:46:30,435 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-09-25 14:46:30,435 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 14:46:30,435 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 14:46:30,436 INFO L268 CegarLoopResult]: For program point L51-3(lines 51 53) no Hoare annotation was computed. [2020-09-25 14:46:30,436 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-25 14:46:30,436 INFO L268 CegarLoopResult]: For program point L51-4(line 51) no Hoare annotation was computed. [2020-09-25 14:46:30,436 INFO L268 CegarLoopResult]: For program point L18-3(line 18) no Hoare annotation was computed. [2020-09-25 14:46:30,436 INFO L268 CegarLoopResult]: For program point L51-5(line 51) no Hoare annotation was computed. [2020-09-25 14:46:30,436 INFO L264 CegarLoopResult]: At program point L51-6(lines 51 53) the Hoare annotation is: false [2020-09-25 14:46:30,436 INFO L268 CegarLoopResult]: For program point L2-1(line 2) no Hoare annotation was computed. [2020-09-25 14:46:30,437 INFO L268 CegarLoopResult]: For program point L2-3(line 2) no Hoare annotation was computed. [2020-09-25 14:46:30,437 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2020-09-25 14:46:30,437 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2020-09-25 14:46:30,437 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2020-09-25 14:46:30,437 INFO L268 CegarLoopResult]: For program point L2(line 2) no Hoare annotation was computed. [2020-09-25 14:46:30,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:46:30 BoogieIcfgContainer [2020-09-25 14:46:30,461 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 14:46:30,464 INFO L168 Benchmark]: Toolchain (without parser) took 45993.02 ms. Allocated memory was 109.6 MB in the beginning and 394.8 MB in the end (delta: 285.2 MB). Free memory was 73.8 MB in the beginning and 171.4 MB in the end (delta: -97.6 MB). Peak memory consumption was 187.6 MB. Max. memory is 7.1 GB. [2020-09-25 14:46:30,465 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 109.6 MB. Free memory was 91.0 MB in the beginning and 90.9 MB in the end (delta: 105.1 kB). Peak memory consumption was 105.1 kB. Max. memory is 7.1 GB. [2020-09-25 14:46:30,466 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.75 ms. Allocated memory was 109.6 MB in the beginning and 123.7 MB in the end (delta: 14.2 MB). Free memory was 73.2 MB in the beginning and 98.0 MB in the end (delta: -24.8 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. [2020-09-25 14:46:30,467 INFO L168 Benchmark]: Boogie Preprocessor took 128.34 ms. Allocated memory was 123.7 MB in the beginning and 164.1 MB in the end (delta: 40.4 MB). Free memory was 98.0 MB in the beginning and 148.4 MB in the end (delta: -50.5 MB). Peak memory consumption was 411.5 kB. Max. memory is 7.1 GB. [2020-09-25 14:46:30,467 INFO L168 Benchmark]: RCFGBuilder took 587.93 ms. Allocated memory is still 164.1 MB. Free memory was 148.4 MB in the beginning and 119.8 MB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2020-09-25 14:46:30,468 INFO L168 Benchmark]: TraceAbstraction took 44899.44 ms. Allocated memory was 164.1 MB in the beginning and 394.8 MB in the end (delta: 230.7 MB). Free memory was 119.4 MB in the beginning and 171.4 MB in the end (delta: -52.0 MB). Peak memory consumption was 178.6 MB. Max. memory is 7.1 GB. [2020-09-25 14:46:30,472 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 109.6 MB. Free memory was 91.0 MB in the beginning and 90.9 MB in the end (delta: 105.1 kB). Peak memory consumption was 105.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 367.75 ms. Allocated memory was 109.6 MB in the beginning and 123.7 MB in the end (delta: 14.2 MB). Free memory was 73.2 MB in the beginning and 98.0 MB in the end (delta: -24.8 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.34 ms. Allocated memory was 123.7 MB in the beginning and 164.1 MB in the end (delta: 40.4 MB). Free memory was 98.0 MB in the beginning and 148.4 MB in the end (delta: -50.5 MB). Peak memory consumption was 411.5 kB. Max. memory is 7.1 GB. * RCFGBuilder took 587.93 ms. Allocated memory is still 164.1 MB. Free memory was 148.4 MB in the beginning and 119.8 MB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 44899.44 ms. Allocated memory was 164.1 MB in the beginning and 394.8 MB in the end (delta: 230.7 MB). Free memory was 119.4 MB in the beginning and 171.4 MB in the end (delta: -52.0 MB). Peak memory consumption was 178.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: n <= x && n == 0 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: n <= x && n == 0 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: n <= x && n <= 0 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: n <= x && n == 0 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: n <= x && n == 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (!(\old(size) <= 0) || ((i <= 0 && 0 <= i) && size == \old(size))) || (size == \old(size) && !(\old(size) == 0)) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: n == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 132 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 44.2s, OverallIterations: 9, TraceHistogramMax: 2, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 992 SDtfs, 1857 SDslu, 3305 SDs, 0 SdLazy, 3408 SolverSat, 308 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 222 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=281occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 411 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 106 PreInvPairs, 124 NumberOfFragments, 97 HoareAnnotationTreeSize, 106 FomulaSimplifications, 18784 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 22 FomulaSimplificationsInter, 284 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 38.4s InterpolantComputationTime, 744 NumberOfCodeBlocks, 744 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 735 ConstructedInterpolants, 0 QuantifiedInterpolants, 131289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 136/174 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 correct! Received shutdown request...