/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 21:04:21,816 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 21:04:21,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 21:04:21,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 21:04:21,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 21:04:21,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 21:04:21,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 21:04:21,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 21:04:21,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 21:04:21,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 21:04:21,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 21:04:21,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 21:04:21,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 21:04:21,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 21:04:21,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 21:04:21,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 21:04:21,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 21:04:21,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 21:04:21,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 21:04:21,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 21:04:21,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 21:04:21,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 21:04:21,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 21:04:21,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 21:04:21,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 21:04:21,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 21:04:21,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 21:04:21,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 21:04:21,909 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 21:04:21,927 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 21:04:21,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 21:04:21,928 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 21:04:21,928 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 21:04:21,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 21:04:21,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 21:04:21,929 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 21:04:21,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 21:04:21,929 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 21:04:21,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 21:04:21,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 21:04:21,930 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 21:04:21,930 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 21:04:21,930 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 21:04:21,930 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 21:04:21,930 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 21:04:21,930 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 21:04:21,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 21:04:21,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 21:04:21,931 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 21:04:21,931 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 21:04:21,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 21:04:21,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 21:04:21,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 21:04:21,932 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 21:04:21,932 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 21:04:21,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 21:04:21,932 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 21:04:21,932 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 21:04:21,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 21:04:21,932 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 21:04:21,933 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 21:04:21,933 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 21:04:21,933 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 21:04:22,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 21:04:22,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 21:04:22,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 21:04:22,177 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 21:04:22,177 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 21:04:22,178 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i [2022-01-10 21:04:22,235 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/620a341af/510279cd5a9b405c8e77250df4b65516/FLAG17222151e [2022-01-10 21:04:22,599 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 21:04:22,599 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i [2022-01-10 21:04:22,606 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/620a341af/510279cd5a9b405c8e77250df4b65516/FLAG17222151e [2022-01-10 21:04:22,618 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/620a341af/510279cd5a9b405c8e77250df4b65516 [2022-01-10 21:04:22,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 21:04:22,625 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 21:04:22,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 21:04:22,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 21:04:22,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 21:04:22,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:04:22" (1/1) ... [2022-01-10 21:04:22,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e073d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:04:22, skipping insertion in model container [2022-01-10 21:04:22,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:04:22" (1/1) ... [2022-01-10 21:04:22,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 21:04:22,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 21:04:22,817 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i[838,851] [2022-01-10 21:04:22,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 21:04:22,872 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 21:04:22,885 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i[838,851] [2022-01-10 21:04:22,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 21:04:22,930 INFO L208 MainTranslator]: Completed translation [2022-01-10 21:04:22,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:04:22 WrapperNode [2022-01-10 21:04:22,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 21:04:22,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 21:04:22,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 21:04:22,932 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 21:04:22,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:04:22" (1/1) ... [2022-01-10 21:04:22,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:04:22" (1/1) ... [2022-01-10 21:04:22,966 INFO L137 Inliner]: procedures = 20, calls = 29, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 169 [2022-01-10 21:04:22,966 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 21:04:22,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 21:04:22,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 21:04:22,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 21:04:22,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:04:22" (1/1) ... [2022-01-10 21:04:22,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:04:22" (1/1) ... [2022-01-10 21:04:22,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:04:22" (1/1) ... [2022-01-10 21:04:22,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:04:22" (1/1) ... [2022-01-10 21:04:22,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:04:22" (1/1) ... [2022-01-10 21:04:22,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:04:22" (1/1) ... [2022-01-10 21:04:22,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:04:22" (1/1) ... [2022-01-10 21:04:22,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 21:04:22,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 21:04:22,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 21:04:22,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 21:04:23,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:04:22" (1/1) ... [2022-01-10 21:04:23,007 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 21:04:23,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 21:04:23,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 21:04:23,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 21:04:23,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 21:04:23,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 21:04:23,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 21:04:23,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 21:04:23,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 21:04:23,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 21:04:23,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 21:04:23,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 21:04:23,107 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 21:04:23,108 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 21:04:23,318 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 21:04:23,323 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 21:04:23,323 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-01-10 21:04:23,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:04:23 BoogieIcfgContainer [2022-01-10 21:04:23,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 21:04:23,326 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 21:04:23,326 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 21:04:23,327 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 21:04:23,329 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:04:23" (1/1) ... [2022-01-10 21:04:23,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:04:23 BasicIcfg [2022-01-10 21:04:23,512 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 21:04:23,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 21:04:23,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 21:04:23,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 21:04:23,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 09:04:22" (1/4) ... [2022-01-10 21:04:23,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dec1f13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:04:23, skipping insertion in model container [2022-01-10 21:04:23,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:04:22" (2/4) ... [2022-01-10 21:04:23,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dec1f13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:04:23, skipping insertion in model container [2022-01-10 21:04:23,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:04:23" (3/4) ... [2022-01-10 21:04:23,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dec1f13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:04:23, skipping insertion in model container [2022-01-10 21:04:23,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:04:23" (4/4) ... [2022-01-10 21:04:23,519 INFO L111 eAbstractionObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_ground.iTransformedIcfg [2022-01-10 21:04:23,530 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 21:04:23,530 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 21:04:23,565 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 21:04:23,569 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 21:04:23,569 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 21:04:23,579 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 47 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:04:23,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-10 21:04:23,582 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:04:23,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:04:23,582 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:04:23,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:04:23,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1062930579, now seen corresponding path program 1 times [2022-01-10 21:04:23,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:04:23,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431759906] [2022-01-10 21:04:23,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:04:23,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:04:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:04:23,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:04:23,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:04:23,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431759906] [2022-01-10 21:04:23,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431759906] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:04:23,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:04:23,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 21:04:23,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475895967] [2022-01-10 21:04:23,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:04:23,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 21:04:23,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:04:23,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 21:04:23,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 21:04:23,794 INFO L87 Difference]: Start difference. First operand has 48 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 47 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:04:23,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:04:23,820 INFO L93 Difference]: Finished difference Result 92 states and 138 transitions. [2022-01-10 21:04:23,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 21:04:23,822 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-01-10 21:04:23,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:04:23,828 INFO L225 Difference]: With dead ends: 92 [2022-01-10 21:04:23,829 INFO L226 Difference]: Without dead ends: 44 [2022-01-10 21:04:23,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 21:04:23,834 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:04:23,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:04:23,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-01-10 21:04:23,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-01-10 21:04:23,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 43 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:04:23,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2022-01-10 21:04:23,867 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 55 transitions. Word has length 8 [2022-01-10 21:04:23,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:04:23,867 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 55 transitions. [2022-01-10 21:04:23,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:04:23,868 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2022-01-10 21:04:23,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-10 21:04:23,868 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:04:23,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:04:23,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 21:04:23,869 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:04:23,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:04:23,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1034301428, now seen corresponding path program 1 times [2022-01-10 21:04:23,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:04:23,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54735927] [2022-01-10 21:04:23,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:04:23,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:04:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:04:23,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:04:23,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:04:23,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54735927] [2022-01-10 21:04:23,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54735927] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:04:23,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:04:23,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:04:23,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522499574] [2022-01-10 21:04:23,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:04:23,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:04:23,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:04:23,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:04:23,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:04:23,994 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:04:24,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:04:24,122 INFO L93 Difference]: Finished difference Result 125 states and 157 transitions. [2022-01-10 21:04:24,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:04:24,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-01-10 21:04:24,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:04:24,124 INFO L225 Difference]: With dead ends: 125 [2022-01-10 21:04:24,124 INFO L226 Difference]: Without dead ends: 85 [2022-01-10 21:04:24,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:04:24,126 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 45 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:04:24,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 79 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:04:24,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-01-10 21:04:24,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 45. [2022-01-10 21:04:24,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 44 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:04:24,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2022-01-10 21:04:24,139 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 8 [2022-01-10 21:04:24,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:04:24,140 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2022-01-10 21:04:24,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:04:24,141 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2022-01-10 21:04:24,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-10 21:04:24,142 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:04:24,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:04:24,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 21:04:24,142 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:04:24,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:04:24,143 INFO L85 PathProgramCache]: Analyzing trace with hash 624653710, now seen corresponding path program 1 times [2022-01-10 21:04:24,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:04:24,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626511230] [2022-01-10 21:04:24,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:04:24,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:04:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:04:24,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 21:04:24,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:04:24,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626511230] [2022-01-10 21:04:24,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626511230] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 21:04:24,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603321692] [2022-01-10 21:04:24,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:04:24,249 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 21:04:24,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 21:04:24,251 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 21:04:24,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 21:04:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:04:24,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 21:04:24,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 21:04:24,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 21:04:24,402 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 21:04:24,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603321692] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:04:24,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-10 21:04:24,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-01-10 21:04:24,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088251175] [2022-01-10 21:04:24,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:04:24,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:04:24,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:04:24,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:04:24,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 21:04:24,404 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:04:24,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:04:24,472 INFO L93 Difference]: Finished difference Result 91 states and 116 transitions. [2022-01-10 21:04:24,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:04:24,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-01-10 21:04:24,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:04:24,474 INFO L225 Difference]: With dead ends: 91 [2022-01-10 21:04:24,474 INFO L226 Difference]: Without dead ends: 50 [2022-01-10 21:04:24,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 21:04:24,475 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 42 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 21:04:24,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 65 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 21:04:24,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-01-10 21:04:24,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2022-01-10 21:04:24,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 47 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:04:24,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 60 transitions. [2022-01-10 21:04:24,481 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 60 transitions. Word has length 10 [2022-01-10 21:04:24,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:04:24,481 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 60 transitions. [2022-01-10 21:04:24,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:04:24,481 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 60 transitions. [2022-01-10 21:04:24,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 21:04:24,482 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:04:24,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:04:24,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 21:04:24,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 21:04:24,683 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:04:24,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:04:24,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1487641256, now seen corresponding path program 1 times [2022-01-10 21:04:24,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:04:24,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027509112] [2022-01-10 21:04:24,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:04:24,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:04:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:04:24,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 21:04:24,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:04:24,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027509112] [2022-01-10 21:04:24,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027509112] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:04:24,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:04:24,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 21:04:24,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952072775] [2022-01-10 21:04:24,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:04:24,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:04:24,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:04:24,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:04:24,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 21:04:24,815 INFO L87 Difference]: Start difference. First operand 48 states and 60 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:04:24,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:04:24,854 INFO L93 Difference]: Finished difference Result 103 states and 128 transitions. [2022-01-10 21:04:24,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:04:24,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-01-10 21:04:24,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:04:24,856 INFO L225 Difference]: With dead ends: 103 [2022-01-10 21:04:24,856 INFO L226 Difference]: Without dead ends: 76 [2022-01-10 21:04:24,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 21:04:24,858 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 24 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:04:24,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 170 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:04:24,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-01-10 21:04:24,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 52. [2022-01-10 21:04:24,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 50 states have (on average 1.28) internal successors, (64), 51 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:04:24,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2022-01-10 21:04:24,865 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 64 transitions. Word has length 21 [2022-01-10 21:04:24,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:04:24,865 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 64 transitions. [2022-01-10 21:04:24,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:04:24,865 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2022-01-10 21:04:24,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 21:04:24,866 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:04:24,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 21:04:24,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 21:04:24,866 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:04:24,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:04:24,867 INFO L85 PathProgramCache]: Analyzing trace with hash 803358072, now seen corresponding path program 1 times [2022-01-10 21:04:24,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:04:24,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293836086] [2022-01-10 21:04:24,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:04:24,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:04:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:04:24,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 21:04:24,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:04:24,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293836086] [2022-01-10 21:04:24,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293836086] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:04:24,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 21:04:24,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 21:04:24,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489143657] [2022-01-10 21:04:24,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:04:24,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 21:04:24,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:04:24,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 21:04:24,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:04:24,943 INFO L87 Difference]: Start difference. First operand 52 states and 64 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:04:24,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:04:24,973 INFO L93 Difference]: Finished difference Result 119 states and 147 transitions. [2022-01-10 21:04:24,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 21:04:24,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-01-10 21:04:24,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:04:24,974 INFO L225 Difference]: With dead ends: 119 [2022-01-10 21:04:24,974 INFO L226 Difference]: Without dead ends: 77 [2022-01-10 21:04:24,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 21:04:24,976 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 23 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:04:24,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 77 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:04:24,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-01-10 21:04:24,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 53. [2022-01-10 21:04:24,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 52 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:04:24,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 65 transitions. [2022-01-10 21:04:24,984 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 65 transitions. Word has length 21 [2022-01-10 21:04:24,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:04:24,984 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 65 transitions. [2022-01-10 21:04:24,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:04:24,984 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2022-01-10 21:04:24,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-10 21:04:24,985 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 21:04:24,985 INFO L514 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] [2022-01-10 21:04:24,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 21:04:24,985 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 21:04:24,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 21:04:24,986 INFO L85 PathProgramCache]: Analyzing trace with hash -729381229, now seen corresponding path program 1 times [2022-01-10 21:04:24,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 21:04:24,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984425346] [2022-01-10 21:04:24,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:04:24,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 21:04:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:04:25,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 21:04:25,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 21:04:25,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984425346] [2022-01-10 21:04:25,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984425346] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 21:04:25,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5299441] [2022-01-10 21:04:25,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 21:04:25,077 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 21:04:25,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 21:04:25,078 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 21:04:25,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 21:04:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 21:04:25,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-10 21:04:25,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 21:04:25,356 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 21:04:25,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 21:04:25,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5299441] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 21:04:25,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-10 21:04:25,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-01-10 21:04:25,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822925149] [2022-01-10 21:04:25,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 21:04:25,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 21:04:25,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 21:04:25,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 21:04:25,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-10 21:04:25,358 INFO L87 Difference]: Start difference. First operand 53 states and 65 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:04:25,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 21:04:25,384 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions. [2022-01-10 21:04:25,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 21:04:25,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-01-10 21:04:25,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 21:04:25,384 INFO L225 Difference]: With dead ends: 62 [2022-01-10 21:04:25,384 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 21:04:25,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-10 21:04:25,393 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 15 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 21:04:25,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 28 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 21:04:25,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 21:04:25,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 21:04:25,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:04:25,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 21:04:25,395 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2022-01-10 21:04:25,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 21:04:25,395 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 21:04:25,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 21:04:25,396 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 21:04:25,396 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 21:04:25,398 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-10 21:04:25,398 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-10 21:04:25,398 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-10 21:04:25,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-10 21:04:25,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-01-10 21:04:25,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 21:04:25,745 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 21:04:25,745 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 21:04:25,746 INFO L854 garLoopResultBuilder]: At program point L33-3(lines 33 36) the Hoare annotation is: (= |ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int| 0) [2022-01-10 21:04:25,746 INFO L858 garLoopResultBuilder]: For program point L33-4(lines 33 36) no Hoare annotation was computed. [2022-01-10 21:04:25,746 INFO L858 garLoopResultBuilder]: For program point L33-2(lines 33 36) no Hoare annotation was computed. [2022-01-10 21:04:25,746 INFO L854 garLoopResultBuilder]: At program point L39-3(lines 39 43) the Hoare annotation is: (and (= |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 0) (= |ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int| 0)) [2022-01-10 21:04:25,746 INFO L858 garLoopResultBuilder]: For program point L39-4(lines 39 43) no Hoare annotation was computed. [2022-01-10 21:04:25,746 INFO L854 garLoopResultBuilder]: At program point L40-3(lines 40 42) the Hoare annotation is: false [2022-01-10 21:04:25,746 INFO L854 garLoopResultBuilder]: At program point L47-3(lines 47 50) the Hoare annotation is: (and (= |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 0) (= |ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int| 0)) [2022-01-10 21:04:25,746 INFO L858 garLoopResultBuilder]: For program point L39-2(lines 39 43) no Hoare annotation was computed. [2022-01-10 21:04:25,746 INFO L858 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2022-01-10 21:04:25,746 INFO L858 garLoopResultBuilder]: For program point L47-4(lines 47 50) no Hoare annotation was computed. [2022-01-10 21:04:25,747 INFO L858 garLoopResultBuilder]: For program point L47-2(lines 47 50) no Hoare annotation was computed. [2022-01-10 21:04:25,747 INFO L858 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2022-01-10 21:04:25,747 INFO L858 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2022-01-10 21:04:25,747 INFO L854 garLoopResultBuilder]: At program point L51-3(lines 51 60) the Hoare annotation is: (and (= |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 0) (= |ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int| 0)) [2022-01-10 21:04:25,747 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2022-01-10 21:04:25,747 INFO L858 garLoopResultBuilder]: For program point L40-2(lines 40 42) no Hoare annotation was computed. [2022-01-10 21:04:25,747 INFO L858 garLoopResultBuilder]: For program point L51-4(lines 51 60) no Hoare annotation was computed. [2022-01-10 21:04:25,747 INFO L854 garLoopResultBuilder]: At program point L22-3(lines 22 24) the Hoare annotation is: (and (= |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 0) (= |ULTIMATE.start_ULTIMATE.start_elem_exists_~size#1Int| 0) (<= |ULTIMATE.start_ULTIMATE.start_elem_exists_~i~0#1Int| 0) (= |ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int| 0) (<= 0 |ULTIMATE.start_ULTIMATE.start_elem_exists_~i~0#1Int|)) [2022-01-10 21:04:25,747 INFO L854 garLoopResultBuilder]: At program point L61-3(lines 61 65) the Hoare annotation is: (and (= |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 0) (= |ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int| 0)) [2022-01-10 21:04:25,747 INFO L858 garLoopResultBuilder]: For program point L22-4(lines 22 24) no Hoare annotation was computed. [2022-01-10 21:04:25,748 INFO L858 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-01-10 21:04:25,748 INFO L858 garLoopResultBuilder]: For program point L61-4(lines 61 65) no Hoare annotation was computed. [2022-01-10 21:04:25,748 INFO L854 garLoopResultBuilder]: At program point L62-3(lines 62 64) the Hoare annotation is: false [2022-01-10 21:04:25,748 INFO L854 garLoopResultBuilder]: At program point L25(lines 20 26) the Hoare annotation is: (and (= |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 0) (<= |ULTIMATE.start_ULTIMATE.start_elem_exists_#res#1Int| 0) (= |ULTIMATE.start_ULTIMATE.start_elem_exists_~size#1Int| 0) (<= |ULTIMATE.start_ULTIMATE.start_elem_exists_~i~0#1Int| 0) (= |ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int| 0) (<= 0 |ULTIMATE.start_ULTIMATE.start_elem_exists_~i~0#1Int|)) [2022-01-10 21:04:25,748 INFO L858 garLoopResultBuilder]: For program point L22-2(lines 22 24) no Hoare annotation was computed. [2022-01-10 21:04:25,748 INFO L861 garLoopResultBuilder]: At program point L66(lines 27 67) the Hoare annotation is: true [2022-01-10 21:04:25,748 INFO L858 garLoopResultBuilder]: For program point L61-2(lines 61 65) no Hoare annotation was computed. [2022-01-10 21:04:25,748 INFO L858 garLoopResultBuilder]: For program point L13-8(line 13) no Hoare annotation was computed. [2022-01-10 21:04:25,748 INFO L858 garLoopResultBuilder]: For program point L52(lines 52 54) no Hoare annotation was computed. [2022-01-10 21:04:25,749 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 21:04:25,749 INFO L858 garLoopResultBuilder]: For program point L13-9(line 13) no Hoare annotation was computed. [2022-01-10 21:04:25,749 INFO L858 garLoopResultBuilder]: For program point L13-11(line 13) no Hoare annotation was computed. [2022-01-10 21:04:25,749 INFO L854 garLoopResultBuilder]: At program point L18(lines 16 19) the Hoare annotation is: false [2022-01-10 21:04:25,749 INFO L858 garLoopResultBuilder]: For program point L52-2(lines 52 54) no Hoare annotation was computed. [2022-01-10 21:04:25,749 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 21:04:25,749 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2022-01-10 21:04:25,750 INFO L858 garLoopResultBuilder]: For program point L62-2(lines 62 64) no Hoare annotation was computed. [2022-01-10 21:04:25,750 INFO L854 garLoopResultBuilder]: At program point L55-3(lines 55 59) the Hoare annotation is: (and (= |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 0) (= |ULTIMATE.start_ULTIMATE.start_elem_exists_~size#1Int| 0) (<= |ULTIMATE.start_ULTIMATE.start_elem_exists_~i~0#1Int| 0) (= |ULTIMATE.start_ULTIMATE.start_main_~n~0#1Int| 0) (<= 0 |ULTIMATE.start_ULTIMATE.start_elem_exists_~i~0#1Int|)) [2022-01-10 21:04:25,750 INFO L858 garLoopResultBuilder]: For program point L51-2(lines 51 60) no Hoare annotation was computed. [2022-01-10 21:04:25,750 INFO L854 garLoopResultBuilder]: At program point L56-3(lines 56 58) the Hoare annotation is: false [2022-01-10 21:04:25,750 INFO L858 garLoopResultBuilder]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2022-01-10 21:04:25,750 INFO L858 garLoopResultBuilder]: For program point L13-4(line 13) no Hoare annotation was computed. [2022-01-10 21:04:25,750 INFO L858 garLoopResultBuilder]: For program point L13-5(line 13) no Hoare annotation was computed. [2022-01-10 21:04:25,750 INFO L858 garLoopResultBuilder]: For program point L13-7(line 13) no Hoare annotation was computed. [2022-01-10 21:04:25,750 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2022-01-10 21:04:25,751 INFO L858 garLoopResultBuilder]: For program point L56-2(lines 56 58) no Hoare annotation was computed. [2022-01-10 21:04:25,753 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-01-10 21:04:25,758 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 21:04:25,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:04:25 BasicIcfg [2022-01-10 21:04:25,785 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 21:04:25,785 INFO L158 Benchmark]: Toolchain (without parser) took 3160.67ms. Allocated memory was 176.2MB in the beginning and 241.2MB in the end (delta: 65.0MB). Free memory was 119.1MB in the beginning and 180.0MB in the end (delta: -60.9MB). Peak memory consumption was 4.1MB. Max. memory is 8.0GB. [2022-01-10 21:04:25,786 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 176.2MB. Free memory is still 135.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 21:04:25,786 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.91ms. Allocated memory was 176.2MB in the beginning and 241.2MB in the end (delta: 65.0MB). Free memory was 118.9MB in the beginning and 214.6MB in the end (delta: -95.7MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-01-10 21:04:25,786 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.05ms. Allocated memory is still 241.2MB. Free memory was 214.6MB in the beginning and 212.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 21:04:25,786 INFO L158 Benchmark]: Boogie Preprocessor took 30.48ms. Allocated memory is still 241.2MB. Free memory was 212.5MB in the beginning and 211.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 21:04:25,787 INFO L158 Benchmark]: RCFGBuilder took 327.65ms. Allocated memory is still 241.2MB. Free memory was 211.0MB in the beginning and 195.2MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-01-10 21:04:25,788 INFO L158 Benchmark]: IcfgTransformer took 186.48ms. Allocated memory is still 241.2MB. Free memory was 195.2MB in the beginning and 184.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-10 21:04:25,788 INFO L158 Benchmark]: TraceAbstraction took 2271.21ms. Allocated memory is still 241.2MB. Free memory was 184.2MB in the beginning and 180.0MB in the end (delta: 4.2MB). Peak memory consumption was 3.7MB. Max. memory is 8.0GB. [2022-01-10 21:04:25,789 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 176.2MB. Free memory is still 135.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 303.91ms. Allocated memory was 176.2MB in the beginning and 241.2MB in the end (delta: 65.0MB). Free memory was 118.9MB in the beginning and 214.6MB in the end (delta: -95.7MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.05ms. Allocated memory is still 241.2MB. Free memory was 214.6MB in the beginning and 212.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.48ms. Allocated memory is still 241.2MB. Free memory was 212.5MB in the beginning and 211.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 327.65ms. Allocated memory is still 241.2MB. Free memory was 211.0MB in the beginning and 195.2MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * IcfgTransformer took 186.48ms. Allocated memory is still 241.2MB. Free memory was 195.2MB in the beginning and 184.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2271.21ms. Allocated memory is still 241.2MB. Free memory was 184.2MB in the beginning and 180.0MB in the end (delta: 4.2MB). Peak memory consumption was 3.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 48 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 149 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 149 mSDsluCounter, 478 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 215 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 263 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=5, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 90 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 13 PreInvPairs, 24 NumberOfFragments, 87 HoareAnnotationTreeSize, 13 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 172 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 199 SizeOfPredicates, 6 NumberOfNonLiveVariables, 472 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 6/8 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: n == 0bv32 && x == 0bv32 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: (((size == 0bv32 && ~bvule32(0bv32, i)) && ~bvule32(i, 0bv32)) && n == 0bv32) && x == 0bv32 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: n == 0bv32 && x == 0bv32 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((((size == 0bv32 && ~bvule32(0bv32, i)) && ~bvule32(\result, 0bv32)) && ~bvule32(i, 0bv32)) && n == 0bv32) && x == 0bv32 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: n == 0bv32 && x == 0bv32 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: n == 0bv32 && x == 0bv32 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((size == 0bv32 && ~bvule32(0bv32, i)) && ~bvule32(i, 0bv32)) && n == 0bv32) && x == 0bv32 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: n == 0bv32 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-01-10 21:04:25,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...