./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-43.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_loopvsstraightlinecode_25-while_file-43.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', '61baff025ed1826778930d2297acbbb0c7636497384ff5cdb264bdd3e935514a'] 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_loopvsstraightlinecode_25-while_file-43.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 61baff025ed1826778930d2297acbbb0c7636497384ff5cdb264bdd3e935514a --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 08:31:28,721 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 08:31:28,817 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 08:31:28,823 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 08:31:28,824 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 08:31:28,852 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 08:31:28,854 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 08:31:28,855 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 08:31:28,855 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 08:31:28,856 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 08:31:28,856 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 08:31:28,856 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 08:31:28,856 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 08:31:28,857 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 08:31:28,857 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 08:31:28,857 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 08:31:28,858 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 08:31:28,858 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 08:31:28,858 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 08:31:28,858 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 08:31:28,859 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 08:31:28,859 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 08:31:28,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 08:31:28,859 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 08:31:28,859 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 08:31:28,859 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 08:31:28,859 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 08:31:28,859 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 08:31:28,859 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 08:31:28,859 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 08:31:28,859 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 08:31:28,859 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 08:31:28,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 08:31:28,859 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 08:31:28,860 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 08:31:28,860 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 08:31:28,860 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 08:31:28,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 08:31:28,860 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 08:31:28,860 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 08:31:28,860 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 08:31:28,860 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 08:31:28,860 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 -> 61baff025ed1826778930d2297acbbb0c7636497384ff5cdb264bdd3e935514a [2024-11-07 08:31:29,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 08:31:29,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 08:31:29,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 08:31:29,140 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 08:31:29,140 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 08:31:29,140 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-43.i [2024-11-07 08:31:30,401 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 08:31:30,654 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 08:31:30,655 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-43.i [2024-11-07 08:31:30,667 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7d67eea46/e1010878122e427ca03c839eb4676de8/FLAGb73adbb47 [2024-11-07 08:31:30,691 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7d67eea46/e1010878122e427ca03c839eb4676de8 [2024-11-07 08:31:30,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 08:31:30,695 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 08:31:30,696 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 08:31:30,697 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 08:31:30,701 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 08:31:30,702 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:31:30" (1/1) ... [2024-11-07 08:31:30,703 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1314bc3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:30, skipping insertion in model container [2024-11-07 08:31:30,703 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:31:30" (1/1) ... [2024-11-07 08:31:30,723 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 08:31:30,854 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_loopvsstraightlinecode_25-while_file-43.i[915,928] [2024-11-07 08:31:30,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 08:31:30,915 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 08:31:30,925 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_loopvsstraightlinecode_25-while_file-43.i[915,928] [2024-11-07 08:31:30,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 08:31:30,965 INFO L204 MainTranslator]: Completed translation [2024-11-07 08:31:30,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:30 WrapperNode [2024-11-07 08:31:30,966 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 08:31:30,967 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 08:31:30,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 08:31:30,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 08:31:30,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:30" (1/1) ... [2024-11-07 08:31:30,982 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:30" (1/1) ... [2024-11-07 08:31:31,013 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 103 [2024-11-07 08:31:31,017 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 08:31:31,018 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 08:31:31,018 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 08:31:31,018 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 08:31:31,031 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:30" (1/1) ... [2024-11-07 08:31:31,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:30" (1/1) ... [2024-11-07 08:31:31,034 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:30" (1/1) ... [2024-11-07 08:31:31,053 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 08:31:31,056 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:30" (1/1) ... [2024-11-07 08:31:31,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:30" (1/1) ... [2024-11-07 08:31:31,064 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:30" (1/1) ... [2024-11-07 08:31:31,067 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:30" (1/1) ... [2024-11-07 08:31:31,070 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:30" (1/1) ... [2024-11-07 08:31:31,075 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:30" (1/1) ... [2024-11-07 08:31:31,076 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 08:31:31,077 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 08:31:31,077 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 08:31:31,077 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 08:31:31,078 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:30" (1/1) ... [2024-11-07 08:31:31,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 08:31:31,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 08:31:31,113 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 08:31:31,116 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 08:31:31,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 08:31:31,137 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 08:31:31,137 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 08:31:31,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 08:31:31,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 08:31:31,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 08:31:31,220 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 08:31:31,222 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 08:31:31,420 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-07 08:31:31,421 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 08:31:31,430 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 08:31:31,430 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 08:31:31,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:31:31 BoogieIcfgContainer [2024-11-07 08:31:31,430 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 08:31:31,432 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 08:31:31,432 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 08:31:31,436 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 08:31:31,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:31:30" (1/3) ... [2024-11-07 08:31:31,437 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6368deab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:31:31, skipping insertion in model container [2024-11-07 08:31:31,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:30" (2/3) ... [2024-11-07 08:31:31,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6368deab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:31:31, skipping insertion in model container [2024-11-07 08:31:31,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:31:31" (3/3) ... [2024-11-07 08:31:31,441 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-43.i [2024-11-07 08:31:31,455 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 08:31:31,455 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 08:31:31,512 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 08:31:31,522 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;@78922f3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 08:31:31,522 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 08:31:31,527 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-07 08:31:31,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-07 08:31:31,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:31:31,537 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:31:31,538 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:31:31,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:31:31,542 INFO L85 PathProgramCache]: Analyzing trace with hash 202325603, now seen corresponding path program 1 times [2024-11-07 08:31:31,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:31:31,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662078676] [2024-11-07 08:31:31,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:31:31,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:31:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:31,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:31:31,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:31,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 08:31:31,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:31,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 08:31:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:31,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 08:31:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:31,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-07 08:31:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:31,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-07 08:31:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:31,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-07 08:31:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:31,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-07 08:31:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:31,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 08:31:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:31,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 08:31:31,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:31,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 08:31:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:31,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-07 08:31:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:31,830 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-07 08:31:31,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:31:31,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662078676] [2024-11-07 08:31:31,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662078676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:31:31,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:31:31,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 08:31:31,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695580987] [2024-11-07 08:31:31,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:31:31,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 08:31:31,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:31:31,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 08:31:31,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 08:31:31,865 INFO L87 Difference]: Start difference. First operand has 46 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-07 08:31:31,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:31:31,884 INFO L93 Difference]: Finished difference Result 85 states and 136 transitions. [2024-11-07 08:31:31,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 08:31:31,887 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 82 [2024-11-07 08:31:31,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:31:31,891 INFO L225 Difference]: With dead ends: 85 [2024-11-07 08:31:31,891 INFO L226 Difference]: Without dead ends: 42 [2024-11-07 08:31:31,894 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 08:31:31,896 INFO L432 NwaCegarLoop]: 58 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, 58 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 08:31:31,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 08:31:31,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-07 08:31:31,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-11-07 08:31:31,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-07 08:31:31,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 58 transitions. [2024-11-07 08:31:31,930 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 58 transitions. Word has length 82 [2024-11-07 08:31:31,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:31:31,931 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 58 transitions. [2024-11-07 08:31:31,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-07 08:31:31,931 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 58 transitions. [2024-11-07 08:31:31,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-07 08:31:31,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:31:31,934 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:31:31,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 08:31:31,935 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:31:31,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:31:31,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1960831903, now seen corresponding path program 1 times [2024-11-07 08:31:31,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:31:31,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862568341] [2024-11-07 08:31:31,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:31:31,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:31:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:32,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 08:31:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:32,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 08:31:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:32,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 08:31:32,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:32,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-07 08:31:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:32,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-07 08:31:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:32,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-07 08:31:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:32,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-07 08:31:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:32,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-07 08:31:32,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:32,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 08:31:32,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:32,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 08:31:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:32,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 08:31:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:32,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-07 08:31:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:32,538 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 27 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-07 08:31:32,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 08:31:32,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862568341] [2024-11-07 08:31:32,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862568341] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 08:31:32,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222282752] [2024-11-07 08:31:32,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:31:32,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 08:31:32,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 08:31:32,542 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 08:31:32,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 08:31:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:32,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 08:31:32,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 08:31:32,821 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 101 proven. 6 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-07 08:31:32,821 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 08:31:33,015 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 27 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-07 08:31:33,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222282752] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 08:31:33,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 08:31:33,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2024-11-07 08:31:33,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913525933] [2024-11-07 08:31:33,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 08:31:33,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 08:31:33,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 08:31:33,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 08:31:33,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-07 08:31:33,019 INFO L87 Difference]: Start difference. First operand 42 states and 58 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-07 08:31:33,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:31:33,244 INFO L93 Difference]: Finished difference Result 89 states and 120 transitions. [2024-11-07 08:31:33,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 08:31:33,245 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 82 [2024-11-07 08:31:33,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:31:33,247 INFO L225 Difference]: With dead ends: 89 [2024-11-07 08:31:33,247 INFO L226 Difference]: Without dead ends: 50 [2024-11-07 08:31:33,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 184 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2024-11-07 08:31:33,248 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 61 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 08:31:33,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 92 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 08:31:33,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-07 08:31:33,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2024-11-07 08:31:33,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 31 states have internal predecessors, (35), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-07 08:31:33,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 59 transitions. [2024-11-07 08:31:33,260 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 59 transitions. Word has length 82 [2024-11-07 08:31:33,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:31:33,261 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 59 transitions. [2024-11-07 08:31:33,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-07 08:31:33,261 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 59 transitions. [2024-11-07 08:31:33,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-07 08:31:33,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:31:33,262 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:31:33,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-07 08:31:33,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 08:31:33,463 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:31:33,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:31:33,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1962678945, now seen corresponding path program 1 times [2024-11-07 08:31:33,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 08:31:33,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246598880] [2024-11-07 08:31:33,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:31:33,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 08:31:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 08:31:33,506 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 08:31:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 08:31:33,600 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 08:31:33,601 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 08:31:33,602 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-07 08:31:33,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 08:31:33,609 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-07 08:31:33,679 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 08:31:33,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:31:33 BoogieIcfgContainer [2024-11-07 08:31:33,682 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 08:31:33,682 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 08:31:33,682 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 08:31:33,682 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 08:31:33,683 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:31:31" (3/4) ... [2024-11-07 08:31:33,686 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-07 08:31:33,686 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 08:31:33,687 INFO L158 Benchmark]: Toolchain (without parser) took 2992.62ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 91.4MB in the beginning and 122.0MB in the end (delta: -30.6MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2024-11-07 08:31:33,689 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 08:31:33,689 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.24ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 78.8MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 08:31:33,690 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.14ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.0MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 08:31:33,690 INFO L158 Benchmark]: Boogie Preprocessor took 58.24ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 74.7MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 08:31:33,690 INFO L158 Benchmark]: RCFGBuilder took 353.64ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 61.1MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 08:31:33,691 INFO L158 Benchmark]: TraceAbstraction took 2249.39ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 60.7MB in the beginning and 122.1MB in the end (delta: -61.4MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. [2024-11-07 08:31:33,691 INFO L158 Benchmark]: Witness Printer took 4.15ms. Allocated memory is still 159.4MB. Free memory was 122.1MB in the beginning and 122.0MB in the end (delta: 40.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 08:31:33,693 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 270.24ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 78.8MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.14ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.0MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.24ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 74.7MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 353.64ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 61.1MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2249.39ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 60.7MB in the beginning and 122.1MB in the end (delta: -61.4MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. * Witness Printer took 4.15ms. Allocated memory is still 159.4MB. Free memory was 122.1MB in the beginning and 122.0MB in the end (delta: 40.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 89, overapproximation of someBinaryDOUBLEComparisonOperation at line 89, overapproximation of someBinaryArithmeticFLOAToperation at line 48. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 64; [L23] float var_1_4 = 64.4; [L24] float var_1_5 = 0.2; [L25] double var_1_8 = 31.75; [L26] double var_1_9 = 50.375; [L27] double var_1_10 = 99.25; [L28] double var_1_11 = 16.4; [L29] double var_1_12 = 64.5; [L30] float var_1_13 = 8.75; [L31] float var_1_14 = 127.1; [L32] unsigned short int var_1_15 = 5; [L33] unsigned char var_1_18 = 0; [L34] unsigned char var_1_19 = 0; [L35] unsigned char var_1_20 = 0; [L36] unsigned char var_1_21 = 8; [L37] double last_1_var_1_8 = 31.75; VAL [isInitial=0, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_4=322/5, var_1_5=1/5, var_1_8=127/4, var_1_9=403/8] [L93] isInitial = 1 [L94] FCALL initially() [L95] COND TRUE 1 [L96] CALL updateLastVariables() [L86] last_1_var_1_8 = var_1_8 VAL [isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_4=322/5, var_1_5=1/5, var_1_8=127/4, var_1_9=403/8] [L96] RET updateLastVariables() [L97] CALL updateVariables() [L63] var_1_4 = __VERIFIER_nondet_float() [L64] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_5=1/5, var_1_8=127/4, var_1_9=403/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_5=1/5, var_1_8=127/4, var_1_9=403/8] [L64] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_5=1/5, var_1_8=127/4, var_1_9=403/8] [L65] var_1_5 = __VERIFIER_nondet_float() [L66] CALL assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4, var_1_9=403/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4, var_1_9=403/8] [L66] RET assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4, var_1_9=403/8] [L67] var_1_9 = __VERIFIER_nondet_double() [L68] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L68] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L69] CALL assume_abort_if_not(var_1_9 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L69] RET assume_abort_if_not(var_1_9 != 0.0F) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L70] var_1_10 = __VERIFIER_nondet_double() [L71] CALL assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L71] RET assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L72] var_1_11 = __VERIFIER_nondet_double() [L73] CALL assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L73] RET assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L74] var_1_12 = __VERIFIER_nondet_double() [L75] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L75] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L76] var_1_14 = __VERIFIER_nondet_float() [L77] CALL assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L77] RET assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L78] var_1_19 = __VERIFIER_nondet_uchar() [L79] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L79] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L80] CALL assume_abort_if_not(var_1_19 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L80] RET assume_abort_if_not(var_1_19 <= 0) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L81] var_1_21 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_21 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_8=127/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_8=127/4] [L82] RET assume_abort_if_not(var_1_21 >= 0) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_8=127/4] [L83] CALL assume_abort_if_not(var_1_21 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=254, var_1_8=127/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=254, var_1_8=127/4] [L83] RET assume_abort_if_not(var_1_21 <= 254) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=254, var_1_8=127/4] [L97] RET updateVariables() [L98] CALL step() [L41] COND FALSE !((- (var_1_5 / var_1_9)) != last_1_var_1_8) [L46] var_1_8 = var_1_12 VAL [isInitial=1, last_1_var_1_8=127/4, var_1_12=259, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=254, var_1_8=259] [L48] var_1_13 = (128.75f + var_1_14) [L49] var_1_18 = var_1_19 [L50] var_1_20 = var_1_21 VAL [isInitial=1, last_1_var_1_8=127/4, var_1_12=259, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=254, var_1_21=254, var_1_8=259] [L51] COND FALSE !(var_1_13 != ((((var_1_13) > ((var_1_4 - var_1_5))) ? (var_1_13) : ((var_1_4 - var_1_5))))) [L56] var_1_1 = var_1_20 VAL [isInitial=1, last_1_var_1_8=127/4, var_1_12=259, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=254, var_1_20=254, var_1_21=254, var_1_8=259] [L58] COND FALSE !(\read(var_1_18)) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_12=259, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=254, var_1_20=254, var_1_21=254, var_1_8=259] [L98] RET step() [L99] CALL, EXPR property() [L89-L90] return ((((((var_1_13 != ((((var_1_13) > ((var_1_4 - var_1_5))) ? (var_1_13) : ((var_1_4 - var_1_5))))) ? (var_1_18 ? (var_1_1 == ((signed short int) var_1_20)) : 1) : (var_1_1 == ((signed short int) var_1_20))) && (((- (var_1_5 / var_1_9)) != last_1_var_1_8) ? ((var_1_4 != (- var_1_9)) ? (var_1_8 == ((double) ((var_1_10 + var_1_11) - var_1_12))) : 1) : (var_1_8 == ((double) var_1_12)))) && (var_1_13 == ((float) (128.75f + var_1_14)))) && (var_1_18 ? (var_1_15 == ((unsigned short int) (var_1_20 + var_1_20))) : 1)) && (var_1_18 == ((unsigned char) var_1_19))) && (var_1_20 == ((unsigned char) var_1_21)) ; VAL [\result=0, isInitial=1, last_1_var_1_8=127/4, var_1_12=259, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=254, var_1_20=254, var_1_21=254, var_1_8=259] [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_12=259, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=254, var_1_20=254, var_1_21=254, var_1_8=259] [L19] reach_error() VAL [isInitial=1, last_1_var_1_8=127/4, var_1_12=259, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=254, var_1_20=254, var_1_21=254, var_1_8=259] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 61 mSDsluCounter, 150 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 97 mSDtfsCounter, 88 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 238 GetRequests, 222 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 328 NumberOfCodeBlocks, 328 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 324 ConstructedInterpolants, 0 QuantifiedInterpolants, 498 SizeOfPredicates, 2 NumberOfNonLiveVariables, 204 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 1038/1056 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-07 08:31:33,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_loopvsstraightlinecode_25-while_file-43.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 61baff025ed1826778930d2297acbbb0c7636497384ff5cdb264bdd3e935514a --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 08:31:35,950 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 08:31:36,053 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-07 08:31:36,063 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 08:31:36,063 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 08:31:36,086 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 08:31:36,087 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 08:31:36,087 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 08:31:36,088 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 08:31:36,088 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 08:31:36,089 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 08:31:36,089 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 08:31:36,090 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 08:31:36,090 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 08:31:36,090 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 08:31:36,090 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 08:31:36,091 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 08:31:36,091 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 08:31:36,091 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 08:31:36,091 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 08:31:36,091 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 08:31:36,091 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 08:31:36,092 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 08:31:36,092 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 08:31:36,092 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-07 08:31:36,092 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 08:31:36,092 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-07 08:31:36,092 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 08:31:36,092 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 08:31:36,092 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 08:31:36,092 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 08:31:36,093 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 08:31:36,093 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 08:31:36,093 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 08:31:36,094 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 08:31:36,094 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 08:31:36,094 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 08:31:36,094 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 08:31:36,094 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-07 08:31:36,094 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-07 08:31:36,094 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 08:31:36,095 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 08:31:36,095 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 08:31:36,095 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 08:31:36,095 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 -> 61baff025ed1826778930d2297acbbb0c7636497384ff5cdb264bdd3e935514a [2024-11-07 08:31:36,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 08:31:36,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 08:31:36,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 08:31:36,402 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 08:31:36,405 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 08:31:36,406 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-43.i [2024-11-07 08:31:37,704 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 08:31:37,966 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 08:31:37,967 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-43.i [2024-11-07 08:31:37,976 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/179c7e71c/e230736751154103bc766b1dc172330f/FLAG9be3940ee [2024-11-07 08:31:38,291 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/179c7e71c/e230736751154103bc766b1dc172330f [2024-11-07 08:31:38,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 08:31:38,296 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 08:31:38,298 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 08:31:38,298 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 08:31:38,302 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 08:31:38,303 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:31:38" (1/1) ... [2024-11-07 08:31:38,306 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34c47d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:38, skipping insertion in model container [2024-11-07 08:31:38,306 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:31:38" (1/1) ... [2024-11-07 08:31:38,325 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 08:31:38,466 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_loopvsstraightlinecode_25-while_file-43.i[915,928] [2024-11-07 08:31:38,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 08:31:38,529 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 08:31:38,544 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_loopvsstraightlinecode_25-while_file-43.i[915,928] [2024-11-07 08:31:38,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 08:31:38,592 INFO L204 MainTranslator]: Completed translation [2024-11-07 08:31:38,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:38 WrapperNode [2024-11-07 08:31:38,594 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 08:31:38,595 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 08:31:38,595 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 08:31:38,595 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 08:31:38,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:38" (1/1) ... [2024-11-07 08:31:38,615 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:38" (1/1) ... [2024-11-07 08:31:38,650 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 103 [2024-11-07 08:31:38,656 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 08:31:38,657 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 08:31:38,658 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 08:31:38,658 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 08:31:38,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:38" (1/1) ... [2024-11-07 08:31:38,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:38" (1/1) ... [2024-11-07 08:31:38,675 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:38" (1/1) ... [2024-11-07 08:31:38,695 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 08:31:38,699 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:38" (1/1) ... [2024-11-07 08:31:38,699 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:38" (1/1) ... [2024-11-07 08:31:38,711 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:38" (1/1) ... [2024-11-07 08:31:38,716 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:38" (1/1) ... [2024-11-07 08:31:38,718 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:38" (1/1) ... [2024-11-07 08:31:38,722 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:38" (1/1) ... [2024-11-07 08:31:38,728 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 08:31:38,730 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 08:31:38,733 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 08:31:38,733 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 08:31:38,734 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:38" (1/1) ... [2024-11-07 08:31:38,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 08:31:38,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 08:31:38,775 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 08:31:38,779 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 08:31:38,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 08:31:38,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-07 08:31:38,801 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 08:31:38,801 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 08:31:38,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 08:31:38,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 08:31:38,886 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 08:31:38,888 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 08:31:53,502 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-07 08:31:53,503 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 08:31:53,511 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 08:31:53,511 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 08:31:53,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:31:53 BoogieIcfgContainer [2024-11-07 08:31:53,512 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 08:31:53,514 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 08:31:53,514 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 08:31:53,520 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 08:31:53,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:31:38" (1/3) ... [2024-11-07 08:31:53,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ecd66e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:31:53, skipping insertion in model container [2024-11-07 08:31:53,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:31:38" (2/3) ... [2024-11-07 08:31:53,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ecd66e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:31:53, skipping insertion in model container [2024-11-07 08:31:53,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:31:53" (3/3) ... [2024-11-07 08:31:53,524 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-43.i [2024-11-07 08:31:53,537 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 08:31:53,538 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 08:31:53,588 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 08:31:53,599 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;@5a366972, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 08:31:53,599 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 08:31:53,605 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-07 08:31:53,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-07 08:31:53,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:31:53,617 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:31:53,617 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:31:53,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:31:53,621 INFO L85 PathProgramCache]: Analyzing trace with hash 202325603, now seen corresponding path program 1 times [2024-11-07 08:31:53,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 08:31:53,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005909931] [2024-11-07 08:31:53,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:31:53,631 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 08:31:53,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 08:31:53,636 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 08:31:53,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-07 08:31:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:54,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-07 08:31:54,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 08:31:54,658 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-07 08:31:54,659 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 08:31:54,659 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 08:31:54,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005909931] [2024-11-07 08:31:54,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005909931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 08:31:54,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 08:31:54,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 08:31:54,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323329171] [2024-11-07 08:31:54,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 08:31:54,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 08:31:54,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 08:31:54,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 08:31:54,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 08:31:54,682 INFO L87 Difference]: Start difference. First operand has 46 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-07 08:31:54,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:31:54,698 INFO L93 Difference]: Finished difference Result 85 states and 136 transitions. [2024-11-07 08:31:54,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 08:31:54,700 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 82 [2024-11-07 08:31:54,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:31:54,706 INFO L225 Difference]: With dead ends: 85 [2024-11-07 08:31:54,706 INFO L226 Difference]: Without dead ends: 42 [2024-11-07 08:31:54,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 81 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 08:31:54,713 INFO L432 NwaCegarLoop]: 58 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, 58 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 08:31:54,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 08:31:54,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-07 08:31:54,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-11-07 08:31:54,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-07 08:31:54,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 58 transitions. [2024-11-07 08:31:54,744 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 58 transitions. Word has length 82 [2024-11-07 08:31:54,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:31:54,744 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 58 transitions. [2024-11-07 08:31:54,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-07 08:31:54,745 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 58 transitions. [2024-11-07 08:31:54,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-07 08:31:54,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:31:54,749 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:31:54,784 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-07 08:31:54,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 08:31:54,950 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:31:54,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:31:54,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1960831903, now seen corresponding path program 1 times [2024-11-07 08:31:54,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 08:31:54,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130505169] [2024-11-07 08:31:54,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:31:54,952 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 08:31:54,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 08:31:54,954 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 08:31:54,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-07 08:31:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:31:55,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 08:31:55,915 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 08:31:57,460 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 101 proven. 6 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-07 08:31:57,460 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 08:32:00,202 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 27 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-07 08:32:00,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 08:32:00,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130505169] [2024-11-07 08:32:00,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130505169] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 08:32:00,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 08:32:00,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2024-11-07 08:32:00,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967049912] [2024-11-07 08:32:00,204 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 08:32:00,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 08:32:00,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 08:32:00,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 08:32:00,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-07 08:32:00,207 INFO L87 Difference]: Start difference. First operand 42 states and 58 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-07 08:32:08,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-07 08:32:12,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-07 08:32:16,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-07 08:32:16,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 08:32:16,098 INFO L93 Difference]: Finished difference Result 89 states and 120 transitions. [2024-11-07 08:32:16,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 08:32:16,280 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 82 [2024-11-07 08:32:16,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 08:32:16,282 INFO L225 Difference]: With dead ends: 89 [2024-11-07 08:32:16,282 INFO L226 Difference]: Without dead ends: 50 [2024-11-07 08:32:16,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 156 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2024-11-07 08:32:16,283 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 85 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 59 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2024-11-07 08:32:16,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 89 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 79 Invalid, 3 Unknown, 0 Unchecked, 14.5s Time] [2024-11-07 08:32:16,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-07 08:32:16,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2024-11-07 08:32:16,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 31 states have internal predecessors, (35), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-07 08:32:16,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 59 transitions. [2024-11-07 08:32:16,294 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 59 transitions. Word has length 82 [2024-11-07 08:32:16,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 08:32:16,294 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 59 transitions. [2024-11-07 08:32:16,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-07 08:32:16,295 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 59 transitions. [2024-11-07 08:32:16,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-07 08:32:16,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 08:32:16,296 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:32:16,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-07 08:32:16,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 08:32:16,497 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 08:32:16,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 08:32:16,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1962678945, now seen corresponding path program 1 times [2024-11-07 08:32:16,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 08:32:16,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2037228829] [2024-11-07 08:32:16,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 08:32:16,499 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 08:32:16,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 08:32:16,501 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 08:32:16,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-07 08:32:18,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 08:32:18,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-07 08:32:18,408 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 08:32:40,434 WARN L286 SmtUtils]: Spent 8.30s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-07 08:32:48,760 WARN L286 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-07 08:32:57,079 WARN L286 SmtUtils]: Spent 8.32s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-07 08:33:05,271 WARN L286 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)