./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-56.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-56.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '14a66acf4e5a26427e31999dbdddc59010c551d9bf4c569a3f4fccee1043a6f6'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-56.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 14a66acf4e5a26427e31999dbdddc59010c551d9bf4c569a3f4fccee1043a6f6 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 04:11:01,619 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 04:11:01,706 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 04:11:01,713 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 04:11:01,713 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 04:11:01,743 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 04:11:01,745 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 04:11:01,745 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 04:11:01,746 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 04:11:01,746 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 04:11:01,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 04:11:01,746 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 04:11:01,746 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 04:11:01,746 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 04:11:01,746 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 04:11:01,746 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 04:11:01,746 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 04:11:01,746 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 04:11:01,747 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 04:11:01,747 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 04:11:01,747 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 04:11:01,747 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 04:11:01,747 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 04:11:01,747 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 04:11:01,747 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 04:11:01,747 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 04:11:01,747 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 04:11:01,747 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 04:11:01,747 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 04:11:01,747 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 04:11:01,747 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 04:11:01,747 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 04:11:01,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 04:11:01,748 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 04:11:01,748 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 04:11:01,748 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 04:11:01,748 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 04:11:01,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 04:11:01,748 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 04:11:01,748 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 04:11:01,748 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 04:11:01,748 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 04:11:01,748 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14a66acf4e5a26427e31999dbdddc59010c551d9bf4c569a3f4fccee1043a6f6 [2024-11-07 04:11:02,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 04:11:02,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 04:11:02,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 04:11:02,026 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 04:11:02,026 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 04:11:02,028 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-56.i [2024-11-07 04:11:03,236 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 04:11:03,526 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 04:11:03,530 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-56.i [2024-11-07 04:11:03,539 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/265303525/68b3ec49e7df493ca756a9b6c21d514f/FLAG62c5116cd [2024-11-07 04:11:03,556 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/265303525/68b3ec49e7df493ca756a9b6c21d514f [2024-11-07 04:11:03,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 04:11:03,560 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 04:11:03,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 04:11:03,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 04:11:03,566 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 04:11:03,567 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:11:03" (1/1) ... [2024-11-07 04:11:03,567 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eb3f938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:03, skipping insertion in model container [2024-11-07 04:11:03,567 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:11:03" (1/1) ... [2024-11-07 04:11:03,586 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 04:11:03,721 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-56.i[913,926] [2024-11-07 04:11:03,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 04:11:03,816 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 04:11:03,826 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-56.i[913,926] [2024-11-07 04:11:03,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 04:11:03,869 INFO L204 MainTranslator]: Completed translation [2024-11-07 04:11:03,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:03 WrapperNode [2024-11-07 04:11:03,870 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 04:11:03,871 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 04:11:03,872 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 04:11:03,872 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 04:11:03,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:03" (1/1) ... [2024-11-07 04:11:03,892 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:03" (1/1) ... [2024-11-07 04:11:03,950 INFO L138 Inliner]: procedures = 26, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 155 [2024-11-07 04:11:03,951 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 04:11:03,951 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 04:11:03,951 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 04:11:03,951 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 04:11:03,961 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:03" (1/1) ... [2024-11-07 04:11:03,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:03" (1/1) ... [2024-11-07 04:11:03,971 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:03" (1/1) ... [2024-11-07 04:11:03,992 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 04:11:03,993 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:03" (1/1) ... [2024-11-07 04:11:03,993 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:03" (1/1) ... [2024-11-07 04:11:04,007 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:03" (1/1) ... [2024-11-07 04:11:04,016 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:03" (1/1) ... [2024-11-07 04:11:04,021 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:03" (1/1) ... [2024-11-07 04:11:04,028 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:03" (1/1) ... [2024-11-07 04:11:04,035 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 04:11:04,038 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 04:11:04,038 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 04:11:04,038 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 04:11:04,039 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:03" (1/1) ... [2024-11-07 04:11:04,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 04:11:04,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 04:11:04,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 04:11:04,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 04:11:04,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 04:11:04,097 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 04:11:04,098 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 04:11:04,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 04:11:04,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 04:11:04,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 04:11:04,184 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 04:11:04,186 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 04:11:04,594 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-07 04:11:04,594 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 04:11:04,605 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 04:11:04,605 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 04:11:04,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:11:04 BoogieIcfgContainer [2024-11-07 04:11:04,606 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 04:11:04,610 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 04:11:04,610 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 04:11:04,617 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 04:11:04,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:11:03" (1/3) ... [2024-11-07 04:11:04,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608a6649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:11:04, skipping insertion in model container [2024-11-07 04:11:04,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:11:03" (2/3) ... [2024-11-07 04:11:04,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608a6649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:11:04, skipping insertion in model container [2024-11-07 04:11:04,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:11:04" (3/3) ... [2024-11-07 04:11:04,619 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-56.i [2024-11-07 04:11:04,631 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 04:11:04,631 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 04:11:04,677 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 04:11:04,694 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@511f574, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 04:11:04,694 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 04:11:04,699 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 40 states have internal predecessors, (51), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-07 04:11:04,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-07 04:11:04,713 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:11:04,714 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:11:04,714 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:11:04,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:11:04,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1662653458, now seen corresponding path program 1 times [2024-11-07 04:11:04,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:11:04,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848012004] [2024-11-07 04:11:04,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:11:04,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:11:04,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:11:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:11:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 04:11:05,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:11:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 04:11:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 04:11:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 04:11:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:11:05,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:11:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:11:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:11:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:11:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:11:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:11:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 04:11:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:11:05,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 04:11:05,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:11:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 04:11:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:11:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 04:11:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:11:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 04:11:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:11:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 04:11:05,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-07 04:11:05,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 04:11:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-07 04:11:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-07 04:11:05,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 04:11:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:11:05,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-11-07 04:11:05,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:11:05,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848012004] [2024-11-07 04:11:05,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848012004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:11:05,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:11:05,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 04:11:05,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573648585] [2024-11-07 04:11:05,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:11:05,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 04:11:05,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:11:05,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 04:11:05,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 04:11:05,293 INFO L87 Difference]: Start difference. First operand has 72 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 40 states have internal predecessors, (51), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-07 04:11:05,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:11:05,326 INFO L93 Difference]: Finished difference Result 137 states and 246 transitions. [2024-11-07 04:11:05,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 04:11:05,328 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 2 states have call successors, (30) Word has length 181 [2024-11-07 04:11:05,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:11:05,335 INFO L225 Difference]: With dead ends: 137 [2024-11-07 04:11:05,335 INFO L226 Difference]: Without dead ends: 68 [2024-11-07 04:11:05,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 04:11:05,343 INFO L432 NwaCegarLoop]: 104 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, 104 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 [2024-11-07 04:11:05,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 04:11:05,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-07 04:11:05,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-07 04:11:05,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 36 states have internal predecessors, (44), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-07 04:11:05,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 104 transitions. [2024-11-07 04:11:05,387 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 104 transitions. Word has length 181 [2024-11-07 04:11:05,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:11:05,387 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 104 transitions. [2024-11-07 04:11:05,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-07 04:11:05,388 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 104 transitions. [2024-11-07 04:11:05,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-07 04:11:05,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:11:05,391 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:11:05,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 04:11:05,392 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:11:05,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:11:05,393 INFO L85 PathProgramCache]: Analyzing trace with hash 361401682, now seen corresponding path program 1 times [2024-11-07 04:11:05,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:11:05,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931853298] [2024-11-07 04:11:05,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:11:05,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:11:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat