./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-33.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_dependencies_file-33.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', '080e73bd39fdb1dc0e00d76851964cdfbb781f192a94053a1ebc2f3cc0138cad'] 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_dependencies_file-33.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 080e73bd39fdb1dc0e00d76851964cdfbb781f192a94053a1ebc2f3cc0138cad --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 03:55:13,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 03:55:13,461 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 03:55:13,466 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 03:55:13,469 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 03:55:13,496 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 03:55:13,497 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 03:55:13,500 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 03:55:13,500 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 03:55:13,500 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 03:55:13,501 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 03:55:13,501 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 03:55:13,501 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 03:55:13,501 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 03:55:13,501 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 03:55:13,501 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 03:55:13,501 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 03:55:13,501 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 03:55:13,501 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 03:55:13,501 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 03:55:13,501 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 03:55:13,501 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 03:55:13,501 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 03:55:13,501 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 03:55:13,501 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 03:55:13,501 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 03:55:13,502 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 03:55:13,502 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 03:55:13,502 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 03:55:13,502 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 03:55:13,502 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 03:55:13,502 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 03:55:13,502 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 03:55:13,502 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 03:55:13,502 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 03:55:13,503 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 03:55:13,503 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 03:55:13,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 03:55:13,503 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 03:55:13,503 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 03:55:13,503 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 03:55:13,503 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 03:55:13,503 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 -> 080e73bd39fdb1dc0e00d76851964cdfbb781f192a94053a1ebc2f3cc0138cad [2024-11-07 03:55:13,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 03:55:13,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 03:55:13,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 03:55:13,803 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 03:55:13,804 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 03:55:13,804 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-33.i [2024-11-07 03:55:15,010 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 03:55:15,188 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 03:55:15,189 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-33.i [2024-11-07 03:55:15,194 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/792ec7cac/616faea9e8e1400bb4d1e5016efd15ab/FLAGcfbcd3b2b [2024-11-07 03:55:15,578 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/792ec7cac/616faea9e8e1400bb4d1e5016efd15ab [2024-11-07 03:55:15,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 03:55:15,583 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 03:55:15,584 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 03:55:15,584 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 03:55:15,587 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 03:55:15,587 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:55:15" (1/1) ... [2024-11-07 03:55:15,588 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d43f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:15, skipping insertion in model container [2024-11-07 03:55:15,588 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:55:15" (1/1) ... [2024-11-07 03:55:15,598 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 03:55:15,697 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_dependencies_file-33.i[919,932] [2024-11-07 03:55:15,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 03:55:15,752 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 03:55:15,759 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_dependencies_file-33.i[919,932] [2024-11-07 03:55:15,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 03:55:15,793 INFO L204 MainTranslator]: Completed translation [2024-11-07 03:55:15,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:15 WrapperNode [2024-11-07 03:55:15,794 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 03:55:15,796 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 03:55:15,796 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 03:55:15,796 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 03:55:15,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:15" (1/1) ... [2024-11-07 03:55:15,811 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:15" (1/1) ... [2024-11-07 03:55:15,849 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 148 [2024-11-07 03:55:15,849 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 03:55:15,850 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 03:55:15,851 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 03:55:15,851 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 03:55:15,858 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:15" (1/1) ... [2024-11-07 03:55:15,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:15" (1/1) ... [2024-11-07 03:55:15,861 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:15" (1/1) ... [2024-11-07 03:55:15,878 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 03:55:15,878 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:15" (1/1) ... [2024-11-07 03:55:15,879 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:15" (1/1) ... [2024-11-07 03:55:15,888 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:15" (1/1) ... [2024-11-07 03:55:15,891 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:15" (1/1) ... [2024-11-07 03:55:15,897 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:15" (1/1) ... [2024-11-07 03:55:15,898 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:15" (1/1) ... [2024-11-07 03:55:15,903 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 03:55:15,908 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 03:55:15,908 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 03:55:15,908 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 03:55:15,909 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:15" (1/1) ... [2024-11-07 03:55:15,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 03:55:15,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:55:15,938 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 03:55:15,941 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 03:55:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 03:55:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 03:55:15,961 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 03:55:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 03:55:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 03:55:15,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 03:55:16,027 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 03:55:16,029 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 03:55:16,311 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-07 03:55:16,311 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 03:55:16,317 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 03:55:16,317 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 03:55:16,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:55:16 BoogieIcfgContainer [2024-11-07 03:55:16,318 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 03:55:16,319 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 03:55:16,320 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 03:55:16,323 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 03:55:16,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:55:15" (1/3) ... [2024-11-07 03:55:16,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5de44185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:55:16, skipping insertion in model container [2024-11-07 03:55:16,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:15" (2/3) ... [2024-11-07 03:55:16,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5de44185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:55:16, skipping insertion in model container [2024-11-07 03:55:16,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:55:16" (3/3) ... [2024-11-07 03:55:16,325 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-33.i [2024-11-07 03:55:16,334 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 03:55:16,334 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 03:55:16,385 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 03:55:16,394 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;@26e60cfc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 03:55:16,394 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 03:55:16,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 43 states have internal predecessors, (59), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-07 03:55:16,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-07 03:55:16,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:55:16,409 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:55:16,409 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:55:16,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:55:16,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1996459153, now seen corresponding path program 1 times [2024-11-07 03:55:16,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:55:16,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113521869] [2024-11-07 03:55:16,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:55:16,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:55:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:55:16,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 03:55:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:55:16,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 03:55:16,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:55:16,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 03:55:16,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:55:16,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 03:55:16,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:55:16,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-07 03:55:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:55:16,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 03:55:16,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:55:16,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 03:55:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:55:16,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-07 03:55:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:55:16,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-07 03:55:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:55:16,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-07 03:55:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:55:16,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-07 03:55:16,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:55:16,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 03:55:16,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:55:16,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-07 03:55:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:55:16,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-07 03:55:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:55:16,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 03:55:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:55:16,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-07 03:55:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:55:16,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 03:55:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:55:16,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 03:55:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:55:16,896 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-07 03:55:16,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:55:16,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113521869] [2024-11-07 03:55:16,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113521869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:55:16,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:55:16,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 03:55:16,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598785664] [2024-11-07 03:55:16,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:55:16,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 03:55:16,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:55:16,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 03:55:16,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 03:55:16,926 INFO L87 Difference]: Start difference. First operand has 63 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 43 states have internal predecessors, (59), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-07 03:55:16,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:55:16,949 INFO L93 Difference]: Finished difference Result 119 states and 202 transitions. [2024-11-07 03:55:16,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 03:55:16,951 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2024-11-07 03:55:16,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:55:16,957 INFO L225 Difference]: With dead ends: 119 [2024-11-07 03:55:16,957 INFO L226 Difference]: Without dead ends: 59 [2024-11-07 03:55:16,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 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 03:55:16,960 INFO L432 NwaCegarLoop]: 87 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, 87 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 03:55:16,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:55:16,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-07 03:55:16,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-11-07 03:55:16,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 39 states have internal predecessors, (51), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-07 03:55:16,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 87 transitions. [2024-11-07 03:55:16,987 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 87 transitions. Word has length 115 [2024-11-07 03:55:16,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:55:16,990 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 87 transitions. [2024-11-07 03:55:16,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-07 03:55:16,990 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 87 transitions. [2024-11-07 03:55:16,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-07 03:55:16,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:55:16,995 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:55:16,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 03:55:16,996 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:55:16,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:55:16,997 INFO L85 PathProgramCache]: Analyzing trace with hash 523500781, now seen corresponding path program 1 times [2024-11-07 03:55:16,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:55:16,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756988082] [2024-11-07 03:55:16,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:55:16,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:55:17,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat