/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 08:47:26,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 08:47:26,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 08:47:26,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 08:47:26,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 08:47:27,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 08:47:27,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 08:47:27,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 08:47:27,016 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 08:47:27,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 08:47:27,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 08:47:27,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 08:47:27,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 08:47:27,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 08:47:27,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 08:47:27,037 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 08:47:27,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 08:47:27,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 08:47:27,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 08:47:27,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 08:47:27,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 08:47:27,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 08:47:27,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 08:47:27,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 08:47:27,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 08:47:27,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 08:47:27,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 08:47:27,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 08:47:27,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 08:47:27,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 08:47:27,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 08:47:27,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 08:47:27,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 08:47:27,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 08:47:27,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 08:47:27,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 08:47:27,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 08:47:27,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 08:47:27,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 08:47:27,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 08:47:27,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 08:47:27,098 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 08:47:27,135 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 08:47:27,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 08:47:27,137 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 08:47:27,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 08:47:27,138 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 08:47:27,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 08:47:27,138 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 08:47:27,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 08:47:27,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 08:47:27,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 08:47:27,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 08:47:27,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 08:47:27,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 08:47:27,140 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 08:47:27,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 08:47:27,140 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 08:47:27,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 08:47:27,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 08:47:27,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 08:47:27,141 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 08:47:27,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 08:47:27,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 08:47:27,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 08:47:27,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 08:47:27,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 08:47:27,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 08:47:27,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 08:47:27,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 08:47:27,143 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 08:47:27,143 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 08:47:27,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 08:47:27,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 08:47:27,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 08:47:27,579 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 08:47:27,580 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 08:47:27,581 INFO L432 ainManager$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 [2020-10-28 08:47:27,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d5f8d92c/161fa88e4ffd4c9288d43435742c3dae/FLAGfb65f2e1c [2020-10-28 08:47:28,309 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 08:47:28,310 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i [2020-10-28 08:47:28,319 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d5f8d92c/161fa88e4ffd4c9288d43435742c3dae/FLAGfb65f2e1c [2020-10-28 08:47:28,674 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d5f8d92c/161fa88e4ffd4c9288d43435742c3dae [2020-10-28 08:47:28,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 08:47:28,685 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 08:47:28,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 08:47:28,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 08:47:28,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 08:47:28,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:47:28" (1/1) ... [2020-10-28 08:47:28,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25cea511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:28, skipping insertion in model container [2020-10-28 08:47:28,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:47:28" (1/1) ... [2020-10-28 08:47:28,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 08:47:28,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 08:47:28,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 08:47:28,984 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 08:47:29,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 08:47:29,084 INFO L208 MainTranslator]: Completed translation [2020-10-28 08:47:29,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:29 WrapperNode [2020-10-28 08:47:29,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 08:47:29,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 08:47:29,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 08:47:29,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 08:47:29,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:29" (1/1) ... [2020-10-28 08:47:29,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:29" (1/1) ... [2020-10-28 08:47:29,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:29" (1/1) ... [2020-10-28 08:47:29,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:29" (1/1) ... [2020-10-28 08:47:29,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:29" (1/1) ... [2020-10-28 08:47:29,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:29" (1/1) ... [2020-10-28 08:47:29,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:29" (1/1) ... [2020-10-28 08:47:29,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 08:47:29,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 08:47:29,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 08:47:29,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 08:47:29,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 08:47:29,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 08:47:29,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 08:47:29,302 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 08:47:29,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-28 08:47:29,303 INFO L138 BoogieDeclarations]: Found implementation of procedure insert [2020-10-28 08:47:29,303 INFO L138 BoogieDeclarations]: Found implementation of procedure elem_exists [2020-10-28 08:47:29,303 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 08:47:29,304 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 08:47:29,304 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 08:47:29,304 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 08:47:29,305 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 08:47:29,305 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 08:47:29,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 08:47:29,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-28 08:47:29,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 08:47:29,307 INFO L130 BoogieDeclarations]: Found specification of procedure insert [2020-10-28 08:47:29,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 08:47:29,307 INFO L130 BoogieDeclarations]: Found specification of procedure elem_exists [2020-10-28 08:47:29,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 08:47:29,307 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 08:47:29,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 08:47:29,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 08:47:29,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 08:47:29,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 08:47:30,067 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 08:47:30,068 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-28 08:47:30,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:47:30 BoogieIcfgContainer [2020-10-28 08:47:30,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 08:47:30,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 08:47:30,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 08:47:30,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 08:47:30,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:47:28" (1/3) ... [2020-10-28 08:47:30,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7bd6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:47:30, skipping insertion in model container [2020-10-28 08:47:30,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:47:29" (2/3) ... [2020-10-28 08:47:30,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7bd6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:47:30, skipping insertion in model container [2020-10-28 08:47:30,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:47:30" (3/3) ... [2020-10-28 08:47:30,081 INFO L111 eAbstractionObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_ground.i [2020-10-28 08:47:30,095 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 08:47:30,101 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 08:47:30,113 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 08:47:30,144 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 08:47:30,144 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 08:47:30,145 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 08:47:30,145 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 08:47:30,145 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 08:47:30,145 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 08:47:30,145 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 08:47:30,146 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 08:47:30,167 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2020-10-28 08:47:30,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-28 08:47:30,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:47:30,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 08:47:30,175 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:47:30,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:47:30,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1391341864, now seen corresponding path program 1 times [2020-10-28 08:47:30,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:47:30,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [76799632] [2020-10-28 08:47:30,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:47:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:47:30,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:30,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:30,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:47:30,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 08:47:30,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 08:47:30,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 482 [2020-10-28 08:47:30,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 08:47:30,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 08:47:30,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 08:47:30,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 08:47:30,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 08:47:30,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 08:47:30,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:47:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:47:30,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:30,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:47:30,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:47:30,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:47:30,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 08:47:30,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 08:47:30,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 08:47:30,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:47:30,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:47:30,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:47:30,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:47:30,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 08:47:30,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [76799632] [2020-10-28 08:47:30,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 08:47:30,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 08:47:30,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618616724] [2020-10-28 08:47:30,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 08:47:30,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:47:30,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 08:47:30,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 08:47:30,997 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 5 states. [2020-10-28 08:47:31,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 08:47:31,433 INFO L93 Difference]: Finished difference Result 132 states and 193 transitions. [2020-10-28 08:47:31,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 08:47:31,436 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-28 08:47:31,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 08:47:31,446 INFO L225 Difference]: With dead ends: 132 [2020-10-28 08:47:31,446 INFO L226 Difference]: Without dead ends: 64 [2020-10-28 08:47:31,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 08:47:31,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-28 08:47:31,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 61. [2020-10-28 08:47:31,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-28 08:47:31,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 73 transitions. [2020-10-28 08:47:31,508 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 73 transitions. Word has length 16 [2020-10-28 08:47:31,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 08:47:31,509 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 73 transitions. [2020-10-28 08:47:31,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 08:47:31,509 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 73 transitions. [2020-10-28 08:47:31,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-28 08:47:31,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:47:31,512 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] [2020-10-28 08:47:31,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 08:47:31,513 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:47:31,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:47:31,514 INFO L82 PathProgramCache]: Analyzing trace with hash 877698945, now seen corresponding path program 1 times [2020-10-28 08:47:31,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:47:31,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168910928] [2020-10-28 08:47:31,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:47:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:47:31,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:31,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:31,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:31,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:31,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:32,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:36,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:47:36,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 08:47:36,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 08:47:36,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 08:47:36,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 08:47:36,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 08:47:36,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 08:47:36,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 08:47:36,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 08:47:36,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 08:47:36,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:47:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:47:36,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:36,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:47:36,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:47:36,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:47:36,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 08:47:36,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 08:47:36,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 08:47:36,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:47:36,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:47:36,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:47:36,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 08:47:36,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 08:47:36,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:47:36,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:36,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:47:36,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 08:47:36,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:47:36,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 08:47:36,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 08:47:36,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 08:47:36,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:47:36,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 08:47:36,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:47:36,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:47:36,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 08:47:36,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:47:36,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:36,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:47:36,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:47:36,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:47:36,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:47:36,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 08:47:36,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 08:47:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:47:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 08:47:36,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:47:36,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:47:36,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 08:47:36,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [168910928] [2020-10-28 08:47:36,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 08:47:36,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 08:47:36,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520270606] [2020-10-28 08:47:36,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 08:47:36,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:47:36,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 08:47:36,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 08:47:36,651 INFO L87 Difference]: Start difference. First operand 61 states and 73 transitions. Second operand 6 states. [2020-10-28 08:47:37,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 08:47:37,045 INFO L93 Difference]: Finished difference Result 158 states and 200 transitions. [2020-10-28 08:47:37,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 08:47:37,046 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-10-28 08:47:37,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 08:47:37,048 INFO L225 Difference]: With dead ends: 158 [2020-10-28 08:47:37,048 INFO L226 Difference]: Without dead ends: 106 [2020-10-28 08:47:37,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-28 08:47:37,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-28 08:47:37,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 63. [2020-10-28 08:47:37,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-28 08:47:37,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2020-10-28 08:47:37,070 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 37 [2020-10-28 08:47:37,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 08:47:37,071 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2020-10-28 08:47:37,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 08:47:37,071 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2020-10-28 08:47:37,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-28 08:47:37,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:47:37,074 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] [2020-10-28 08:47:37,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 08:47:37,075 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:47:37,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:47:37,075 INFO L82 PathProgramCache]: Analyzing trace with hash -2022953633, now seen corresponding path program 2 times [2020-10-28 08:47:37,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:47:37,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [922249913] [2020-10-28 08:47:37,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:47:37,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:47:37,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:37,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:37,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:37,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:37,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:37,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:42,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:47:42,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-28 08:47:42,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 08:47:42,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-28 08:47:42,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 08:47:42,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 08:47:42,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 08:47:42,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 08:47:42,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 08:47:42,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 08:47:42,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:47:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:47:42,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:42,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:47:42,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:47:42,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:47:42,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 08:47:42,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 08:47:42,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 08:47:42,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:47:42,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:47:42,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:47:42,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 08:47:42,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 08:47:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:47:42,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:42,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:47:42,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 08:47:42,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:47:42,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 08:47:42,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 08:47:42,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 08:47:42,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:47:42,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 08:47:42,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:47:42,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 08:47:42,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-28 08:47:42,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:47:42,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:42,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:47:42,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:47:42,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:47:42,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 08:47:42,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 08:47:42,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 08:47:42,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:47:42,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 08:47:42,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:47:42,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 08:47:42,226 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 08:47:42,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [922249913] [2020-10-28 08:47:42,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 08:47:42,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 08:47:42,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658119253] [2020-10-28 08:47:42,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 08:47:42,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:47:42,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 08:47:42,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 08:47:42,239 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand 5 states. [2020-10-28 08:47:42,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 08:47:42,618 INFO L93 Difference]: Finished difference Result 129 states and 158 transitions. [2020-10-28 08:47:42,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 08:47:42,620 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-10-28 08:47:42,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 08:47:42,621 INFO L225 Difference]: With dead ends: 129 [2020-10-28 08:47:42,623 INFO L226 Difference]: Without dead ends: 82 [2020-10-28 08:47:42,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 08:47:42,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-28 08:47:42,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 64. [2020-10-28 08:47:42,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-28 08:47:42,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 76 transitions. [2020-10-28 08:47:42,642 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 76 transitions. Word has length 39 [2020-10-28 08:47:42,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 08:47:42,643 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 76 transitions. [2020-10-28 08:47:42,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 08:47:42,643 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 76 transitions. [2020-10-28 08:47:42,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-28 08:47:42,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:47:42,647 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] [2020-10-28 08:47:42,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 08:47:42,648 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:47:42,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:47:42,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1107993347, now seen corresponding path program 1 times [2020-10-28 08:47:42,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:47:42,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [745587939] [2020-10-28 08:47:42,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:47:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:47:42,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:42,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:42,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:42,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:42,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:42,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:47,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:47:47,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-28 08:47:47,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 08:47:47,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 08:47:47,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 08:47:47,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 08:47:47,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 08:47:47,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 08:47:47,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 08:47:47,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:47:47,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:47:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:47:47,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:47,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:47:47,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:47:47,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:47:47,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:47:47,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 08:47:47,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 08:47:47,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:47:47,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:47:47,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:47:47,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:47:47,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 08:47:47,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:47:47,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:47,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:47:47,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 08:47:47,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:47:47,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 08:47:47,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 08:47:47,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 08:47:47,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 08:47:47,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 08:47:47,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 08:47:47,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:47:47,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-28 08:47:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:47:47,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:47,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:47:47,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:47:47,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:47:47,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:47:47,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 08:47:47,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 08:47:47,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:47:47,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 08:47:47,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:47:47,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:47:47,834 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 08:47:47,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [745587939] [2020-10-28 08:47:47,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 08:47:47,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 08:47:47,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668673692] [2020-10-28 08:47:47,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 08:47:47,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:47:47,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 08:47:47,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-28 08:47:47,837 INFO L87 Difference]: Start difference. First operand 64 states and 76 transitions. Second operand 7 states. [2020-10-28 08:47:48,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 08:47:48,226 INFO L93 Difference]: Finished difference Result 116 states and 141 transitions. [2020-10-28 08:47:48,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 08:47:48,227 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-10-28 08:47:48,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 08:47:48,230 INFO L225 Difference]: With dead ends: 116 [2020-10-28 08:47:48,230 INFO L226 Difference]: Without dead ends: 70 [2020-10-28 08:47:48,231 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-28 08:47:48,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-28 08:47:48,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2020-10-28 08:47:48,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-28 08:47:48,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 81 transitions. [2020-10-28 08:47:48,241 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 81 transitions. Word has length 41 [2020-10-28 08:47:48,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 08:47:48,242 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 81 transitions. [2020-10-28 08:47:48,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 08:47:48,242 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 81 transitions. [2020-10-28 08:47:48,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-28 08:47:48,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:47:48,244 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] [2020-10-28 08:47:48,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 08:47:48,244 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:47:48,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:47:48,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1906680698, now seen corresponding path program 1 times [2020-10-28 08:47:48,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:47:48,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208609436] [2020-10-28 08:47:48,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:47:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:47:48,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:48,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:48,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:48,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:48,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:48,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:53,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:47:53,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-28 08:47:53,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 08:47:53,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 08:47:53,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 08:47:53,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 08:47:53,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 08:47:53,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 08:47:53,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 08:47:53,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:47:53,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:47:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:47:53,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:53,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:47:53,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:47:53,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:47:53,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 08:47:53,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 08:47:53,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 08:47:53,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:47:53,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:47:53,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:47:53,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:47:53,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 08:47:53,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:47:53,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:53,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:47:53,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 08:47:53,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:47:53,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:47:53,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 08:47:53,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 08:47:53,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:47:53,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 08:47:53,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:47:53,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:47:53,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-28 08:47:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:47:53,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:53,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:47:53,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:47:53,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:47:53,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 08:47:53,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 08:47:53,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 08:47:53,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:47:53,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 08:47:53,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:47:53,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 08:47:53,355 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 08:47:53,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208609436] [2020-10-28 08:47:53,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 08:47:53,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 08:47:53,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986783228] [2020-10-28 08:47:53,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 08:47:53,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:47:53,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 08:47:53,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 08:47:53,358 INFO L87 Difference]: Start difference. First operand 68 states and 81 transitions. Second operand 7 states. [2020-10-28 08:47:53,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 08:47:53,748 INFO L93 Difference]: Finished difference Result 191 states and 247 transitions. [2020-10-28 08:47:53,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 08:47:53,749 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-10-28 08:47:53,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 08:47:53,751 INFO L225 Difference]: With dead ends: 191 [2020-10-28 08:47:53,752 INFO L226 Difference]: Without dead ends: 134 [2020-10-28 08:47:53,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-28 08:47:53,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-28 08:47:53,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 70. [2020-10-28 08:47:53,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-28 08:47:53,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 83 transitions. [2020-10-28 08:47:53,766 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 83 transitions. Word has length 41 [2020-10-28 08:47:53,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 08:47:53,767 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 83 transitions. [2020-10-28 08:47:53,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 08:47:53,767 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 83 transitions. [2020-10-28 08:47:53,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-28 08:47:53,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 08:47:53,768 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 08:47:53,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 08:47:53,769 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 08:47:53,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 08:47:53,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1423979676, now seen corresponding path program 2 times [2020-10-28 08:47:53,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 08:47:53,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411338845] [2020-10-28 08:47:53,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 08:47:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:47:53,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:53,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:53,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:53,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:53,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:53,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:58,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:47:58,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 08:47:58,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 08:47:58,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 08:47:58,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 08:47:58,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 08:47:58,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 08:47:58,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-28 08:47:58,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 08:47:58,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 08:47:58,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 08:47:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:47:58,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:58,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:47:58,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:47:58,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:47:58,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 08:47:58,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 08:47:58,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 08:47:58,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:47:58,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:47:58,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:47:58,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 08:47:58,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 08:47:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:47:58,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:58,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:47:58,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 08:47:58,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:47:58,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 08:47:58,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 08:47:58,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 08:47:58,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 08:47:58,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 08:47:58,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 08:47:58,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 08:47:58,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 08:47:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 08:47:58,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 08:47:58,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 08:47:58,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 08:47:58,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 08:47:58,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 08:47:58,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 08:47:58,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 08:47:58,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 08:47:58,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 08:47:58,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 08:47:58,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 08:47:58,985 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-28 08:47:58,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411338845] [2020-10-28 08:47:58,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 08:47:58,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 08:47:58,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639023065] [2020-10-28 08:47:58,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 08:47:58,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 08:47:58,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 08:47:58,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-28 08:47:58,990 INFO L87 Difference]: Start difference. First operand 70 states and 83 transitions. Second operand 6 states. [2020-10-28 08:47:59,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 08:47:59,162 INFO L93 Difference]: Finished difference Result 83 states and 96 transitions. [2020-10-28 08:47:59,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 08:47:59,164 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-10-28 08:47:59,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 08:47:59,165 INFO L225 Difference]: With dead ends: 83 [2020-10-28 08:47:59,165 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 08:47:59,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-28 08:47:59,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 08:47:59,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 08:47:59,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 08:47:59,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 08:47:59,171 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2020-10-28 08:47:59,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 08:47:59,172 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 08:47:59,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 08:47:59,172 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 08:47:59,173 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 08:47:59,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 08:47:59,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 08:47:59,514 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2020-10-28 08:47:59,515 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-10-28 08:47:59,515 INFO L274 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-10-28 08:47:59,515 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-10-28 08:47:59,515 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-28 08:47:59,515 INFO L277 CegarLoopResult]: At program point elem_existsENTRY(lines 20 26) the Hoare annotation is: true [2020-10-28 08:47:59,515 INFO L274 CegarLoopResult]: For program point elem_existsEXIT(lines 20 26) no Hoare annotation was computed. [2020-10-28 08:47:59,515 INFO L274 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-10-28 08:47:59,515 INFO L274 CegarLoopResult]: For program point L22-2(lines 22 24) no Hoare annotation was computed. [2020-10-28 08:47:59,516 INFO L270 CegarLoopResult]: At program point L22-3(lines 22 24) the Hoare annotation is: (<= elem_exists_~size (+ |elem_exists_#in~size| elem_exists_~i~0)) [2020-10-28 08:47:59,516 INFO L274 CegarLoopResult]: For program point L22-4(lines 22 24) no Hoare annotation was computed. [2020-10-28 08:47:59,516 INFO L274 CegarLoopResult]: For program point elem_existsFINAL(lines 20 26) no Hoare annotation was computed. [2020-10-28 08:47:59,516 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 08:47:59,516 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |old(#t~string1.offset)| |#t~string1.offset|) (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-28 08:47:59,516 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 08:47:59,517 INFO L277 CegarLoopResult]: At program point insertENTRY(lines 16 19) the Hoare annotation is: true [2020-10-28 08:47:59,517 INFO L274 CegarLoopResult]: For program point insertFINAL(lines 16 19) no Hoare annotation was computed. [2020-10-28 08:47:59,517 INFO L274 CegarLoopResult]: For program point insertEXIT(lines 16 19) no Hoare annotation was computed. [2020-10-28 08:47:59,517 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 08:47:59,517 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-28 08:47:59,517 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 08:47:59,517 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 08:47:59,517 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 27 67) no Hoare annotation was computed. [2020-10-28 08:47:59,518 INFO L270 CegarLoopResult]: At program point L52(line 52) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-28 08:47:59,518 INFO L274 CegarLoopResult]: For program point L52-1(line 52) no Hoare annotation was computed. [2020-10-28 08:47:59,518 INFO L274 CegarLoopResult]: For program point L52-2(lines 52 54) no Hoare annotation was computed. [2020-10-28 08:47:59,518 INFO L274 CegarLoopResult]: For program point L52-4(lines 52 54) no Hoare annotation was computed. [2020-10-28 08:47:59,519 INFO L274 CegarLoopResult]: For program point L61-2(lines 61 65) no Hoare annotation was computed. [2020-10-28 08:47:59,519 INFO L270 CegarLoopResult]: At program point L61-3(lines 61 65) the Hoare annotation is: (and (<= main_~n~0 0) (= main_~x~0 0)) [2020-10-28 08:47:59,519 INFO L274 CegarLoopResult]: For program point L61-4(lines 61 65) no Hoare annotation was computed. [2020-10-28 08:47:59,519 INFO L270 CegarLoopResult]: At program point L53(line 53) the Hoare annotation is: false [2020-10-28 08:47:59,519 INFO L274 CegarLoopResult]: For program point L53-1(line 53) no Hoare annotation was computed. [2020-10-28 08:47:59,519 INFO L274 CegarLoopResult]: For program point L62-2(lines 62 64) no Hoare annotation was computed. [2020-10-28 08:47:59,520 INFO L270 CegarLoopResult]: At program point L62-3(lines 62 64) the Hoare annotation is: false [2020-10-28 08:47:59,521 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 27 67) no Hoare annotation was computed. [2020-10-28 08:47:59,521 INFO L270 CegarLoopResult]: At program point L63(line 63) the Hoare annotation is: false [2020-10-28 08:47:59,521 INFO L274 CegarLoopResult]: For program point L63-1(line 63) no Hoare annotation was computed. [2020-10-28 08:47:59,521 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 27 67) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-10-28 08:47:59,521 INFO L274 CegarLoopResult]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2020-10-28 08:47:59,521 INFO L270 CegarLoopResult]: At program point L55-3(lines 55 59) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-28 08:47:59,521 INFO L274 CegarLoopResult]: For program point L47-2(lines 47 50) no Hoare annotation was computed. [2020-10-28 08:47:59,523 INFO L270 CegarLoopResult]: At program point L47-3(lines 47 50) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-28 08:47:59,523 INFO L274 CegarLoopResult]: For program point L47-4(lines 47 50) no Hoare annotation was computed. [2020-10-28 08:47:59,523 INFO L274 CegarLoopResult]: For program point L39-2(lines 39 43) no Hoare annotation was computed. [2020-10-28 08:47:59,523 INFO L270 CegarLoopResult]: At program point L39-3(lines 39 43) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-28 08:47:59,524 INFO L274 CegarLoopResult]: For program point L39-4(lines 39 43) no Hoare annotation was computed. [2020-10-28 08:47:59,524 INFO L274 CegarLoopResult]: For program point L56-2(lines 56 58) no Hoare annotation was computed. [2020-10-28 08:47:59,524 INFO L270 CegarLoopResult]: At program point L56-3(lines 56 58) the Hoare annotation is: false [2020-10-28 08:47:59,524 INFO L274 CegarLoopResult]: For program point L40-2(lines 40 42) no Hoare annotation was computed. [2020-10-28 08:47:59,524 INFO L270 CegarLoopResult]: At program point L40-3(lines 40 42) the Hoare annotation is: false [2020-10-28 08:47:59,524 INFO L270 CegarLoopResult]: At program point L57(line 57) the Hoare annotation is: false [2020-10-28 08:47:59,524 INFO L274 CegarLoopResult]: For program point L57-1(line 57) no Hoare annotation was computed. [2020-10-28 08:47:59,525 INFO L270 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: false [2020-10-28 08:47:59,525 INFO L274 CegarLoopResult]: For program point L41-1(line 41) no Hoare annotation was computed. [2020-10-28 08:47:59,525 INFO L274 CegarLoopResult]: For program point L33-2(lines 33 36) no Hoare annotation was computed. [2020-10-28 08:47:59,525 INFO L270 CegarLoopResult]: At program point L33-3(lines 33 36) the Hoare annotation is: (= main_~n~0 0) [2020-10-28 08:47:59,525 INFO L274 CegarLoopResult]: For program point L33-4(lines 33 36) no Hoare annotation was computed. [2020-10-28 08:47:59,525 INFO L274 CegarLoopResult]: For program point L51-2(lines 51 60) no Hoare annotation was computed. [2020-10-28 08:47:59,525 INFO L270 CegarLoopResult]: At program point L51-3(lines 51 60) the Hoare annotation is: (and (= main_~x~0 0) (= main_~n~0 0)) [2020-10-28 08:47:59,525 INFO L274 CegarLoopResult]: For program point L51-4(lines 51 60) no Hoare annotation was computed. [2020-10-28 08:47:59,525 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 13) the Hoare annotation is: true [2020-10-28 08:47:59,526 INFO L274 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-10-28 08:47:59,526 INFO L277 CegarLoopResult]: At program point L13-1(line 13) the Hoare annotation is: true [2020-10-28 08:47:59,526 INFO L274 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-10-28 08:47:59,526 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 13) no Hoare annotation was computed. [2020-10-28 08:47:59,526 INFO L274 CegarLoopResult]: For program point L13-4(line 13) no Hoare annotation was computed. [2020-10-28 08:47:59,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:47:59 BoogieIcfgContainer [2020-10-28 08:47:59,553 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 08:47:59,557 INFO L168 Benchmark]: Toolchain (without parser) took 30874.85 ms. Allocated memory was 125.8 MB in the beginning and 325.1 MB in the end (delta: 199.2 MB). Free memory was 101.7 MB in the beginning and 135.8 MB in the end (delta: -34.1 MB). Peak memory consumption was 165.8 MB. Max. memory is 8.0 GB. [2020-10-28 08:47:59,558 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 125.8 MB. Free memory is still 85.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 08:47:59,560 INFO L168 Benchmark]: CACSL2BoogieTranslator took 399.32 ms. Allocated memory is still 125.8 MB. Free memory was 101.0 MB in the beginning and 90.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-28 08:47:59,567 INFO L168 Benchmark]: Boogie Preprocessor took 112.84 ms. Allocated memory is still 125.8 MB. Free memory was 90.2 MB in the beginning and 88.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-28 08:47:59,569 INFO L168 Benchmark]: RCFGBuilder took 868.90 ms. Allocated memory was 125.8 MB in the beginning and 156.2 MB in the end (delta: 30.4 MB). Free memory was 88.2 MB in the beginning and 130.4 MB in the end (delta: -42.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 8.0 GB. [2020-10-28 08:47:59,569 INFO L168 Benchmark]: TraceAbstraction took 29480.70 ms. Allocated memory was 156.2 MB in the beginning and 325.1 MB in the end (delta: 168.8 MB). Free memory was 129.9 MB in the beginning and 135.8 MB in the end (delta: -5.8 MB). Peak memory consumption was 163.4 MB. Max. memory is 8.0 GB. [2020-10-28 08:47:59,581 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 125.8 MB. Free memory is still 85.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 399.32 ms. Allocated memory is still 125.8 MB. Free memory was 101.0 MB in the beginning and 90.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 112.84 ms. Allocated memory is still 125.8 MB. Free memory was 90.2 MB in the beginning and 88.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 868.90 ms. Allocated memory was 125.8 MB in the beginning and 156.2 MB in the end (delta: 30.4 MB). Free memory was 88.2 MB in the beginning and 130.4 MB in the end (delta: -42.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 29480.70 ms. Allocated memory was 156.2 MB in the beginning and 325.1 MB in the end (delta: 168.8 MB). Free memory was 129.9 MB in the beginning and 135.8 MB in the end (delta: -5.8 MB). Peak memory consumption was 163.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 62]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: x == 0 && n == 0 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: n == 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: size <= \old(size) + i - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: x == 0 && n == 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: x == 0 && n == 0 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: n <= 0 && x == 0 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: x == 0 && n == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 29.0s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 321 SDtfs, 327 SDslu, 469 SDs, 0 SdLazy, 708 SolverSat, 160 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 130 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 78 PreInvPairs, 90 NumberOfFragments, 99 HoareAnnotationTreeSize, 78 FomulaSimplifications, 145 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 24 FomulaSimplificationsInter, 110 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 26.2s InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 211 ConstructedInterpolants, 0 QuantifiedInterpolants, 16419 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 20/25 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...