./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_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_dependencies_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', '539a31c92191ccf499583caefdee83885e5c729e76b73005b4b9f92310978df4'] 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-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 539a31c92191ccf499583caefdee83885e5c729e76b73005b4b9f92310978df4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 03:58:23,608 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 03:58:23,683 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 03:58:23,688 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 03:58:23,690 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 03:58:23,719 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 03:58:23,721 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 03:58:23,721 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 03:58:23,722 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 03:58:23,722 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 03:58:23,722 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 03:58:23,722 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 03:58:23,723 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 03:58:23,723 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 03:58:23,723 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 03:58:23,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 03:58:23,724 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 03:58:23,724 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 03:58:23,724 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 03:58:23,724 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 03:58:23,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 03:58:23,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 03:58:23,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 03:58:23,724 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 03:58:23,724 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 03:58:23,724 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 03:58:23,725 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 03:58:23,725 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 03:58:23,725 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 03:58:23,725 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 03:58:23,725 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 03:58:23,725 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 03:58:23,725 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 03:58:23,725 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 03:58:23,726 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 03:58:23,726 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 03:58:23,726 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 03:58:23,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 03:58:23,726 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 03:58:23,726 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 03:58:23,726 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 03:58:23,726 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 03:58:23,726 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 -> 539a31c92191ccf499583caefdee83885e5c729e76b73005b4b9f92310978df4 [2024-11-07 03:58:24,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 03:58:24,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 03:58:24,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 03:58:24,056 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 03:58:24,056 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 03:58:24,059 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-56.i [2024-11-07 03:58:25,420 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 03:58:25,652 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 03:58:25,653 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-56.i [2024-11-07 03:58:25,660 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6fd0c3cb1/879bae5d47c844ac96ac487bbecdcfae/FLAGb23a6c2af [2024-11-07 03:58:25,673 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6fd0c3cb1/879bae5d47c844ac96ac487bbecdcfae [2024-11-07 03:58:25,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 03:58:25,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 03:58:25,678 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 03:58:25,678 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 03:58:25,681 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 03:58:25,682 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:58:25" (1/1) ... [2024-11-07 03:58:25,683 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d6caefa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:58:25, skipping insertion in model container [2024-11-07 03:58:25,683 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:58:25" (1/1) ... [2024-11-07 03:58:25,698 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 03:58:25,821 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-56.i[919,932] [2024-11-07 03:58:25,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 03:58:25,904 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 03:58:25,913 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-56.i[919,932] [2024-11-07 03:58:25,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 03:58:25,965 INFO L204 MainTranslator]: Completed translation [2024-11-07 03:58:25,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:58:25 WrapperNode [2024-11-07 03:58:25,967 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 03:58:25,968 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 03:58:25,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 03:58:25,969 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 03:58:25,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:58:25" (1/1) ... [2024-11-07 03:58:25,983 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:58:25" (1/1) ... [2024-11-07 03:58:26,028 INFO L138 Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 130 [2024-11-07 03:58:26,030 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 03:58:26,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 03:58:26,030 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 03:58:26,030 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 03:58:26,039 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:58:25" (1/1) ... [2024-11-07 03:58:26,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:58:25" (1/1) ... [2024-11-07 03:58:26,043 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:58:25" (1/1) ... [2024-11-07 03:58:26,075 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 03:58:26,075 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:58:25" (1/1) ... [2024-11-07 03:58:26,075 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:58:25" (1/1) ... [2024-11-07 03:58:26,093 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:58:25" (1/1) ... [2024-11-07 03:58:26,097 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:58:25" (1/1) ... [2024-11-07 03:58:26,100 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:58:25" (1/1) ... [2024-11-07 03:58:26,103 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:58:25" (1/1) ... [2024-11-07 03:58:26,111 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 03:58:26,113 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 03:58:26,113 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 03:58:26,113 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 03:58:26,114 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:58:25" (1/1) ... [2024-11-07 03:58:26,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 03:58:26,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:58:26,146 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 03:58:26,148 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 03:58:26,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 03:58:26,170 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 03:58:26,171 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 03:58:26,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 03:58:26,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 03:58:26,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 03:58:26,234 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 03:58:26,235 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 03:58:26,685 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-07 03:58:26,686 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 03:58:26,696 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 03:58:26,696 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 03:58:26,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:58:26 BoogieIcfgContainer [2024-11-07 03:58:26,697 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 03:58:26,699 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 03:58:26,699 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 03:58:26,703 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 03:58:26,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:58:25" (1/3) ... [2024-11-07 03:58:26,705 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55cfe511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:58:26, skipping insertion in model container [2024-11-07 03:58:26,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:58:25" (2/3) ... [2024-11-07 03:58:26,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55cfe511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:58:26, skipping insertion in model container [2024-11-07 03:58:26,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:58:26" (3/3) ... [2024-11-07 03:58:26,707 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-56.i [2024-11-07 03:58:26,720 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 03:58:26,721 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 03:58:26,770 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 03:58:26,780 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;@2ce3a8da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 03:58:26,780 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 03:58:26,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 36 states have internal predecessors, (47), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-07 03:58:26,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-07 03:58:26,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:58:26,796 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:58:26,796 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:58:26,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:58:26,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1247773652, now seen corresponding path program 1 times [2024-11-07 03:58:26,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:58:26,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198904766] [2024-11-07 03:58:26,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:58:26,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:58:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 03:58:27,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 03:58:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 03:58:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 03:58:27,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 03:58:27,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 03:58:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 03:58:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 03:58:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 03:58:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 03:58:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 03:58:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 03:58:27,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 03:58:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 03:58:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 03:58:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 03:58:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 03:58:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 03:58:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 03:58:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 03:58:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 03:58:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 03:58:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:27,256 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-07 03:58:27,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:58:27,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198904766] [2024-11-07 03:58:27,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198904766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:58:27,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:58:27,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 03:58:27,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600634201] [2024-11-07 03:58:27,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:58:27,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 03:58:27,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:58:27,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 03:58:27,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 03:58:27,288 INFO L87 Difference]: Start difference. First operand has 60 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 36 states have internal predecessors, (47), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-07 03:58:27,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:58:27,319 INFO L93 Difference]: Finished difference Result 113 states and 198 transitions. [2024-11-07 03:58:27,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 03:58:27,321 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) Word has length 137 [2024-11-07 03:58:27,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:58:27,327 INFO L225 Difference]: With dead ends: 113 [2024-11-07 03:58:27,328 INFO L226 Difference]: Without dead ends: 56 [2024-11-07 03:58:27,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 68 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 03:58:27,336 INFO L432 NwaCegarLoop]: 83 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, 83 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 03:58:27,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:58:27,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-07 03:58:27,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-11-07 03:58:27,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-07 03:58:27,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 83 transitions. [2024-11-07 03:58:27,382 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 83 transitions. Word has length 137 [2024-11-07 03:58:27,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:58:27,383 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 83 transitions. [2024-11-07 03:58:27,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-07 03:58:27,383 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 83 transitions. [2024-11-07 03:58:27,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-07 03:58:27,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:58:27,387 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:58:27,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 03:58:27,388 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:58:27,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:58:27,388 INFO L85 PathProgramCache]: Analyzing trace with hash 95839596, now seen corresponding path program 1 times [2024-11-07 03:58:27,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:58:27,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366792613] [2024-11-07 03:58:27,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:58:27,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:58:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 03:58:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 03:58:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 03:58:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 03:58:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 03:58:28,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 03:58:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 03:58:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 03:58:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 03:58:28,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 03:58:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 03:58:28,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 03:58:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 03:58:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 03:58:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 03:58:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 03:58:28,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 03:58:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 03:58:28,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 03:58:28,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 03:58:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 03:58:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 03:58:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:58:28,270 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-07 03:58:28,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:58:28,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366792613] [2024-11-07 03:58:28,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366792613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:58:28,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:58:28,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:58:28,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368082154] [2024-11-07 03:58:28,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:58:28,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:58:28,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:58:28,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:58:28,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:58:28,276 INFO L87 Difference]: Start difference. First operand 56 states and 83 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-07 03:58:28,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:58:28,393 INFO L93 Difference]: Finished difference Result 147 states and 213 transitions. [2024-11-07 03:58:28,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:58:28,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 137 [2024-11-07 03:58:28,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:58:28,398 INFO L225 Difference]: With dead ends: 147 [2024-11-07 03:58:28,398 INFO L226 Difference]: Without dead ends: 94 [2024-11-07 03:58:28,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:58:28,399 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 64 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:58:28,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 174 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:58:28,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-07 03:58:28,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 78. [2024-11-07 03:58:28,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 50 states have internal predecessors, (61), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-07 03:58:28,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 113 transitions. [2024-11-07 03:58:28,424 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 113 transitions. Word has length 137 [2024-11-07 03:58:28,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:58:28,425 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 113 transitions. [2024-11-07 03:58:28,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-07 03:58:28,425 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 113 transitions. [2024-11-07 03:58:28,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-07 03:58:28,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:58:28,430 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:58:28,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 03:58:28,431 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:58:28,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:58:28,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1870846958, now seen corresponding path program 1 times [2024-11-07 03:58:28,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:58:28,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472412372] [2024-11-07 03:58:28,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:58:28,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:58:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat