./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-98.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-98.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', '9d90cb0c9a93747735cec7761cf320934dd48aba716104c569c7b4cda39c60e0'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-98.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 9d90cb0c9a93747735cec7761cf320934dd48aba716104c569c7b4cda39c60e0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 04:03:39,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 04:03:39,959 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 04:03:39,966 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 04:03:39,967 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 04:03:39,996 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 04:03:39,997 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 04:03:39,997 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 04:03:39,997 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 04:03:39,998 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 04:03:39,998 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 04:03:39,998 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 04:03:39,998 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 04:03:39,998 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 04:03:39,998 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 04:03:39,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 04:03:39,998 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 04:03:39,999 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 04:03:39,999 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 04:03:39,999 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 04:03:39,999 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 04:03:39,999 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 04:03:39,999 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 04:03:39,999 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 04:03:39,999 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 04:03:39,999 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 04:03:39,999 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 04:03:39,999 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 04:03:39,999 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 04:03:40,000 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 04:03:40,000 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 04:03:40,000 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 04:03:40,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 04:03:40,000 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 04:03:40,000 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 04:03:40,000 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 04:03:40,000 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 04:03:40,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 04:03:40,000 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 04:03:40,000 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 04:03:40,001 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 04:03:40,001 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 04:03:40,001 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 -> 9d90cb0c9a93747735cec7761cf320934dd48aba716104c569c7b4cda39c60e0 [2024-11-07 04:03:40,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 04:03:40,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 04:03:40,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 04:03:40,319 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 04:03:40,319 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 04:03:40,320 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-98.i [2024-11-07 04:03:41,627 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 04:03:41,838 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 04:03:41,838 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-98.i [2024-11-07 04:03:41,846 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0cd7fe7f2/7f135347486641c6a7c5bc78bc9d63f0/FLAGfbf995827 [2024-11-07 04:03:41,857 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0cd7fe7f2/7f135347486641c6a7c5bc78bc9d63f0 [2024-11-07 04:03:41,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 04:03:41,861 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 04:03:41,862 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 04:03:41,862 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 04:03:41,866 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 04:03:41,867 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:03:41" (1/1) ... [2024-11-07 04:03:41,868 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27c9f6d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:41, skipping insertion in model container [2024-11-07 04:03:41,868 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:03:41" (1/1) ... [2024-11-07 04:03:41,885 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 04:03:42,008 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-98.i[919,932] [2024-11-07 04:03:42,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 04:03:42,079 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 04:03:42,087 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-98.i[919,932] [2024-11-07 04:03:42,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 04:03:42,133 INFO L204 MainTranslator]: Completed translation [2024-11-07 04:03:42,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:42 WrapperNode [2024-11-07 04:03:42,135 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 04:03:42,136 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 04:03:42,136 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 04:03:42,136 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 04:03:42,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:42" (1/1) ... [2024-11-07 04:03:42,158 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:42" (1/1) ... [2024-11-07 04:03:42,214 INFO L138 Inliner]: procedures = 26, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 162 [2024-11-07 04:03:42,216 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 04:03:42,219 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 04:03:42,219 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 04:03:42,219 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 04:03:42,230 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:42" (1/1) ... [2024-11-07 04:03:42,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:42" (1/1) ... [2024-11-07 04:03:42,238 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:42" (1/1) ... [2024-11-07 04:03:42,267 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 04:03:42,267 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:42" (1/1) ... [2024-11-07 04:03:42,268 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:42" (1/1) ... [2024-11-07 04:03:42,278 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:42" (1/1) ... [2024-11-07 04:03:42,285 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:42" (1/1) ... [2024-11-07 04:03:42,288 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:42" (1/1) ... [2024-11-07 04:03:42,293 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:42" (1/1) ... [2024-11-07 04:03:42,299 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 04:03:42,300 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 04:03:42,300 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 04:03:42,300 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 04:03:42,301 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:42" (1/1) ... [2024-11-07 04:03:42,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 04:03:42,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 04:03:42,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 04:03:42,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 04:03:42,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 04:03:42,363 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 04:03:42,364 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 04:03:42,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 04:03:42,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 04:03:42,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 04:03:42,450 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 04:03:42,452 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 04:03:42,868 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-07 04:03:42,870 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 04:03:42,880 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 04:03:42,881 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 04:03:42,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:03:42 BoogieIcfgContainer [2024-11-07 04:03:42,881 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 04:03:42,884 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 04:03:42,884 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 04:03:42,887 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 04:03:42,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:03:41" (1/3) ... [2024-11-07 04:03:42,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7badfa24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:03:42, skipping insertion in model container [2024-11-07 04:03:42,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:03:42" (2/3) ... [2024-11-07 04:03:42,889 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7badfa24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:03:42, skipping insertion in model container [2024-11-07 04:03:42,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:03:42" (3/3) ... [2024-11-07 04:03:42,890 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-98.i [2024-11-07 04:03:42,902 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 04:03:42,903 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 04:03:42,971 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 04:03:42,984 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;@22e57214, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 04:03:42,984 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 04:03:42,990 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 48 states have internal predecessors, (65), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-07 04:03:43,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-07 04:03:43,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:03:43,004 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:03:43,005 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:03:43,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:03:43,011 INFO L85 PathProgramCache]: Analyzing trace with hash -913479411, now seen corresponding path program 1 times [2024-11-07 04:03:43,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:03:43,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747489675] [2024-11-07 04:03:43,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:03:43,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:03:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 04:03:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 04:03:45,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-07 04:03:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 04:03:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 04:03:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-07 04:03:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-07 04:03:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 04:03:45,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 04:03:45,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 04:03:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 04:03:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 04:03:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 04:03:45,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 04:03:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 04:03:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 04:03:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 04:03:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 04:03:45,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 04:03:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 04:03:45,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 04:03:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 04:03:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 04:03:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 04:03:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 04:03:45,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-07 04:03:45,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 04:03:45,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747489675] [2024-11-07 04:03:45,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747489675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 04:03:45,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 04:03:45,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 04:03:45,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703477482] [2024-11-07 04:03:45,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 04:03:45,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 04:03:45,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 04:03:45,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 04:03:45,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-07 04:03:45,556 INFO L87 Difference]: Start difference. First operand has 74 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 48 states have internal predecessors, (65), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-07 04:03:46,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 04:03:46,219 INFO L93 Difference]: Finished difference Result 285 states and 535 transitions. [2024-11-07 04:03:46,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 04:03:46,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 153 [2024-11-07 04:03:46,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 04:03:46,230 INFO L225 Difference]: With dead ends: 285 [2024-11-07 04:03:46,231 INFO L226 Difference]: Without dead ends: 214 [2024-11-07 04:03:46,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-07 04:03:46,240 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 298 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 04:03:46,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 266 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 04:03:46,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-07 04:03:46,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 121. [2024-11-07 04:03:46,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 74 states have (on average 1.2432432432432432) internal successors, (92), 75 states have internal predecessors, (92), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 43 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-07 04:03:46,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 180 transitions. [2024-11-07 04:03:46,332 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 180 transitions. Word has length 153 [2024-11-07 04:03:46,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 04:03:46,335 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 180 transitions. [2024-11-07 04:03:46,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-07 04:03:46,335 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 180 transitions. [2024-11-07 04:03:46,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-07 04:03:46,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 04:03:46,340 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 04:03:46,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 04:03:46,341 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 04:03:46,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 04:03:46,341 INFO L85 PathProgramCache]: Analyzing trace with hash 861527951, now seen corresponding path program 1 times [2024-11-07 04:03:46,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 04:03:46,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593374260] [2024-11-07 04:03:46,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 04:03:46,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 04:03:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat