./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/mix035.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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/pthread-wmm/mix035.oepc.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '65062a4b0d520b12bcf8d6a9b80d96fd04b54c0c91d2bd97d502a34cc77f9c59'] 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/pthread-wmm/mix035.oepc.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 65062a4b0d520b12bcf8d6a9b80d96fd04b54c0c91d2bd97d502a34cc77f9c59 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:26:11,325 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:26:11,421 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:26:11,428 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:26:11,429 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:26:11,456 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:26:11,458 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:26:11,458 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:26:11,459 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:26:11,459 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:26:11,460 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:26:11,460 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:26:11,460 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:26:11,460 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:26:11,461 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:26:11,461 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:26:11,461 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:26:11,461 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:26:11,462 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:26:11,462 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:26:11,462 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:26:11,462 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:26:11,462 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:26:11,462 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:26:11,462 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:26:11,463 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:26:11,463 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:26:11,463 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:26:11,463 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:26:11,463 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:26:11,463 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:26:11,463 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:26:11,464 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:26:11,464 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:26:11,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:26:11,464 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:26:11,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:26:11,465 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:26:11,465 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:26:11,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:26:11,465 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:26:11,465 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:26:11,465 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:26:11,465 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:26:11,465 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 ! overflow) ) 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 -> 65062a4b0d520b12bcf8d6a9b80d96fd04b54c0c91d2bd97d502a34cc77f9c59 [2024-11-07 23:26:11,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:26:11,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:26:11,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:26:11,760 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:26:11,761 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:26:11,762 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix035.oepc.i [2024-11-07 23:26:13,018 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:26:13,296 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:26:13,296 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix035.oepc.i [2024-11-07 23:26:13,310 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d3e84eda9/ab60aca016f543f2981a034908e19e0f/FLAGdbc16ab0e [2024-11-07 23:26:13,322 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d3e84eda9/ab60aca016f543f2981a034908e19e0f [2024-11-07 23:26:13,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:26:13,326 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:26:13,327 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:26:13,327 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:26:13,331 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:26:13,331 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:26:13" (1/1) ... [2024-11-07 23:26:13,332 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36329f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:26:13, skipping insertion in model container [2024-11-07 23:26:13,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:26:13" (1/1) ... [2024-11-07 23:26:13,367 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:26:13,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:26:13,680 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:26:13,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:26:13,782 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:26:13,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:26:13 WrapperNode [2024-11-07 23:26:13,783 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:26:13,784 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:26:13,785 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:26:13,785 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:26:13,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:26:13" (1/1) ... [2024-11-07 23:26:13,809 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:26:13" (1/1) ... [2024-11-07 23:26:13,842 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 124 [2024-11-07 23:26:13,843 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:26:13,843 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:26:13,843 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:26:13,843 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:26:13,852 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:26:13" (1/1) ... [2024-11-07 23:26:13,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:26:13" (1/1) ... [2024-11-07 23:26:13,855 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:26:13" (1/1) ... [2024-11-07 23:26:13,879 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 23:26:13,880 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:26:13" (1/1) ... [2024-11-07 23:26:13,880 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:26:13" (1/1) ... [2024-11-07 23:26:13,889 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:26:13" (1/1) ... [2024-11-07 23:26:13,895 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:26:13" (1/1) ... [2024-11-07 23:26:13,897 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:26:13" (1/1) ... [2024-11-07 23:26:13,898 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:26:13" (1/1) ... [2024-11-07 23:26:13,900 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:26:13,903 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:26:13,903 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:26:13,903 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:26:13,905 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:26:13" (1/1) ... [2024-11-07 23:26:13,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:26:13,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:26:13,938 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 23:26:13,943 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 23:26:13,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-07 23:26:13,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:26:13,967 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-07 23:26:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-07 23:26:13,968 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-07 23:26:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-07 23:26:13,968 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-07 23:26:13,969 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-07 23:26:13,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:26:13,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-07 23:26:13,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:26:13,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:26:13,970 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 23:26:14,125 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:26:14,126 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:26:14,468 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:26:14,468 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:26:14,688 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:26:14,689 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 23:26:14,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:26:14 BoogieIcfgContainer [2024-11-07 23:26:14,689 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:26:14,691 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:26:14,691 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:26:14,696 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:26:14,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:26:13" (1/3) ... [2024-11-07 23:26:14,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fab2c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:26:14, skipping insertion in model container [2024-11-07 23:26:14,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:26:13" (2/3) ... [2024-11-07 23:26:14,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fab2c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:26:14, skipping insertion in model container [2024-11-07 23:26:14,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:26:14" (3/3) ... [2024-11-07 23:26:14,698 INFO L112 eAbstractionObserver]: Analyzing ICFG mix035.oepc.i [2024-11-07 23:26:14,712 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:26:14,712 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-07 23:26:14,713 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:26:14,773 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-07 23:26:14,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 94 flow [2024-11-07 23:26:14,844 INFO L124 PetriNetUnfolderBase]: 0/38 cut-off events. [2024-11-07 23:26:14,848 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:26:14,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 38 events. 0/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 84 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-07 23:26:14,850 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 41 transitions, 94 flow [2024-11-07 23:26:14,854 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 38 transitions, 85 flow [2024-11-07 23:26:14,863 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:26:14,875 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;@ff74ede, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:26:14,875 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-07 23:26:14,881 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:26:14,881 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-07 23:26:14,881 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:26:14,882 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:26:14,882 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:26:14,882 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:26:14,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:26:14,887 INFO L85 PathProgramCache]: Analyzing trace with hash -335006328, now seen corresponding path program 1 times [2024-11-07 23:26:14,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:26:14,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804139491] [2024-11-07 23:26:14,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:26:14,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:26:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:26:15,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:26:15,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:26:15,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804139491] [2024-11-07 23:26:15,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804139491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:26:15,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:26:15,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:26:15,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637899851] [2024-11-07 23:26:15,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:26:15,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:26:15,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:26:15,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:26:15,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:26:15,263 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-11-07 23:26:15,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:26:15,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:26:15,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-11-07 23:26:15,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:26:15,975 INFO L124 PetriNetUnfolderBase]: 2398/3584 cut-off events. [2024-11-07 23:26:15,975 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-07 23:26:15,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7182 conditions, 3584 events. 2398/3584 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 20491 event pairs, 838 based on Foata normal form. 0/2815 useless extension candidates. Maximal degree in co-relation 7171. Up to 3251 conditions per place. [2024-11-07 23:26:16,015 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 39 selfloop transitions, 4 changer transitions 0/54 dead transitions. [2024-11-07 23:26:16,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 54 transitions, 209 flow [2024-11-07 23:26:16,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:26:16,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:26:16,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2024-11-07 23:26:16,028 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7398373983739838 [2024-11-07 23:26:16,030 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 85 flow. Second operand 3 states and 91 transitions. [2024-11-07 23:26:16,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 54 transitions, 209 flow [2024-11-07 23:26:16,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 54 transitions, 204 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:26:16,043 INFO L231 Difference]: Finished difference. Result has 48 places, 41 transitions, 118 flow [2024-11-07 23:26:16,046 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=41} [2024-11-07 23:26:16,050 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 0 predicate places. [2024-11-07 23:26:16,050 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 118 flow [2024-11-07 23:26:16,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:26:16,051 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:26:16,051 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:26:16,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 23:26:16,052 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:26:16,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:26:16,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1081570100, now seen corresponding path program 1 times [2024-11-07 23:26:16,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:26:16,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015206316] [2024-11-07 23:26:16,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:26:16,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:26:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:26:16,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:26:16,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:26:16,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015206316] [2024-11-07 23:26:16,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015206316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:26:16,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:26:16,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:26:16,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724411482] [2024-11-07 23:26:16,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:26:16,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:26:16,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:26:16,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:26:16,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:26:16,314 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-11-07 23:26:16,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:26:16,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:26:16,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-11-07 23:26:16,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:26:16,849 INFO L124 PetriNetUnfolderBase]: 1859/2847 cut-off events. [2024-11-07 23:26:16,849 INFO L125 PetriNetUnfolderBase]: For 207/207 co-relation queries the response was YES. [2024-11-07 23:26:16,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6570 conditions, 2847 events. 1859/2847 cut-off events. For 207/207 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 16308 event pairs, 375 based on Foata normal form. 0/2435 useless extension candidates. Maximal degree in co-relation 6559. Up to 1453 conditions per place. [2024-11-07 23:26:16,870 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 50 selfloop transitions, 10 changer transitions 3/74 dead transitions. [2024-11-07 23:26:16,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 74 transitions, 328 flow [2024-11-07 23:26:16,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:26:16,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:26:16,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2024-11-07 23:26:16,872 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7439024390243902 [2024-11-07 23:26:16,872 INFO L175 Difference]: Start difference. First operand has 48 places, 41 transitions, 118 flow. Second operand 4 states and 122 transitions. [2024-11-07 23:26:16,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 74 transitions, 328 flow [2024-11-07 23:26:16,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 74 transitions, 324 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:26:16,875 INFO L231 Difference]: Finished difference. Result has 52 places, 44 transitions, 174 flow [2024-11-07 23:26:16,875 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=174, PETRI_PLACES=52, PETRI_TRANSITIONS=44} [2024-11-07 23:26:16,876 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 4 predicate places. [2024-11-07 23:26:16,876 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 44 transitions, 174 flow [2024-11-07 23:26:16,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:26:16,876 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:26:16,877 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:26:16,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 23:26:16,877 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:26:16,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:26:16,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1081570101, now seen corresponding path program 1 times [2024-11-07 23:26:16,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:26:16,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676595763] [2024-11-07 23:26:16,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:26:16,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:26:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:26:17,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:26:17,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:26:17,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676595763] [2024-11-07 23:26:17,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676595763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:26:17,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:26:17,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:26:17,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321603882] [2024-11-07 23:26:17,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:26:17,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:26:17,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:26:17,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:26:17,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:26:17,031 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-11-07 23:26:17,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 44 transitions, 174 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:26:17,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:26:17,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-11-07 23:26:17,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:26:17,369 INFO L124 PetriNetUnfolderBase]: 1142/1772 cut-off events. [2024-11-07 23:26:17,369 INFO L125 PetriNetUnfolderBase]: For 1794/1794 co-relation queries the response was YES. [2024-11-07 23:26:17,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4403 conditions, 1772 events. 1142/1772 cut-off events. For 1794/1794 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 9758 event pairs, 310 based on Foata normal form. 228/1943 useless extension candidates. Maximal degree in co-relation 4389. Up to 1438 conditions per place. [2024-11-07 23:26:17,382 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 36 selfloop transitions, 4 changer transitions 0/51 dead transitions. [2024-11-07 23:26:17,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 51 transitions, 242 flow [2024-11-07 23:26:17,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:26:17,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:26:17,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 99 transitions. [2024-11-07 23:26:17,385 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6036585365853658 [2024-11-07 23:26:17,385 INFO L175 Difference]: Start difference. First operand has 52 places, 44 transitions, 174 flow. Second operand 4 states and 99 transitions. [2024-11-07 23:26:17,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 51 transitions, 242 flow [2024-11-07 23:26:17,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 51 transitions, 224 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-07 23:26:17,401 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 122 flow [2024-11-07 23:26:17,401 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2024-11-07 23:26:17,402 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 1 predicate places. [2024-11-07 23:26:17,402 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 122 flow [2024-11-07 23:26:17,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:26:17,403 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:26:17,403 INFO L204 CegarLoopForPetriNet]: trace histogram [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 23:26:17,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 23:26:17,403 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:26:17,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:26:17,404 INFO L85 PathProgramCache]: Analyzing trace with hash 2021121011, now seen corresponding path program 1 times [2024-11-07 23:26:17,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:26:17,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478940351] [2024-11-07 23:26:17,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:26:17,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:26:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:26:17,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:26:17,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:26:17,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478940351] [2024-11-07 23:26:17,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478940351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:26:17,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:26:17,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:26:17,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504190702] [2024-11-07 23:26:17,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:26:17,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:26:17,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:26:17,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:26:17,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:26:17,667 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-11-07 23:26:17,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 122 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:26:17,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:26:17,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-11-07 23:26:17,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:26:18,030 INFO L124 PetriNetUnfolderBase]: 1034/1604 cut-off events. [2024-11-07 23:26:18,030 INFO L125 PetriNetUnfolderBase]: For 804/804 co-relation queries the response was YES. [2024-11-07 23:26:18,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3727 conditions, 1604 events. 1034/1604 cut-off events. For 804/804 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 8884 event pairs, 166 based on Foata normal form. 60/1608 useless extension candidates. Maximal degree in co-relation 3714. Up to 698 conditions per place. [2024-11-07 23:26:18,050 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2024-11-07 23:26:18,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 62 transitions, 266 flow [2024-11-07 23:26:18,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:26:18,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:26:18,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 124 transitions. [2024-11-07 23:26:18,053 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6048780487804878 [2024-11-07 23:26:18,054 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 122 flow. Second operand 5 states and 124 transitions. [2024-11-07 23:26:18,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 62 transitions, 266 flow [2024-11-07 23:26:18,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 62 transitions, 251 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 23:26:18,056 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2024-11-07 23:26:18,056 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2024-11-07 23:26:18,057 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2024-11-07 23:26:18,058 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2024-11-07 23:26:18,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:26:18,060 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2024-11-07 23:26:18,063 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2024-11-07 23:26:18,063 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2024-11-07 23:26:18,063 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2024-11-07 23:26:18,063 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2024-11-07 23:26:18,063 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2024-11-07 23:26:18,063 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2024-11-07 23:26:18,063 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2024-11-07 23:26:18,063 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2024-11-07 23:26:18,064 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2024-11-07 23:26:18,064 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2024-11-07 23:26:18,064 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2024-11-07 23:26:18,064 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2024-11-07 23:26:18,064 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2024-11-07 23:26:18,064 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2024-11-07 23:26:18,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 23:26:18,065 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-07 23:26:18,071 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 23:26:18,071 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 23:26:18,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:26:18 BasicIcfg [2024-11-07 23:26:18,077 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 23:26:18,078 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 23:26:18,080 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 23:26:18,080 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 23:26:18,081 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:26:14" (3/4) ... [2024-11-07 23:26:18,082 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 23:26:18,085 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-07 23:26:18,085 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-07 23:26:18,085 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-07 23:26:18,089 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 73 nodes and edges [2024-11-07 23:26:18,090 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-07 23:26:18,090 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-07 23:26:18,090 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-07 23:26:18,167 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 23:26:18,167 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 23:26:18,167 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 23:26:18,168 INFO L158 Benchmark]: Toolchain (without parser) took 4842.71ms. Allocated memory was 100.7MB in the beginning and 343.9MB in the end (delta: 243.3MB). Free memory was 75.6MB in the beginning and 283.0MB in the end (delta: -207.4MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2024-11-07 23:26:18,169 INFO L158 Benchmark]: CDTParser took 0.73ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:26:18,169 INFO L158 Benchmark]: CACSL2BoogieTranslator took 456.35ms. Allocated memory is still 100.7MB. Free memory was 75.5MB in the beginning and 52.4MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-07 23:26:18,170 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.48ms. Allocated memory is still 100.7MB. Free memory was 52.4MB in the beginning and 50.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:26:18,170 INFO L158 Benchmark]: Boogie Preprocessor took 57.03ms. Allocated memory is still 100.7MB. Free memory was 50.1MB in the beginning and 47.1MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:26:18,170 INFO L158 Benchmark]: RCFGBuilder took 786.28ms. Allocated memory is still 100.7MB. Free memory was 47.1MB in the beginning and 71.2MB in the end (delta: -24.1MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2024-11-07 23:26:18,171 INFO L158 Benchmark]: TraceAbstraction took 3386.60ms. Allocated memory was 100.7MB in the beginning and 343.9MB in the end (delta: 243.3MB). Free memory was 70.6MB in the beginning and 289.5MB in the end (delta: -218.9MB). Peak memory consumption was 218.4MB. Max. memory is 16.1GB. [2024-11-07 23:26:18,171 INFO L158 Benchmark]: Witness Printer took 89.43ms. Allocated memory is still 343.9MB. Free memory was 285.7MB in the beginning and 283.0MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:26:18,172 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 456.35ms. Allocated memory is still 100.7MB. Free memory was 75.5MB in the beginning and 52.4MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.48ms. Allocated memory is still 100.7MB. Free memory was 52.4MB in the beginning and 50.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.03ms. Allocated memory is still 100.7MB. Free memory was 50.1MB in the beginning and 47.1MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 786.28ms. Allocated memory is still 100.7MB. Free memory was 47.1MB in the beginning and 71.2MB in the end (delta: -24.1MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3386.60ms. Allocated memory was 100.7MB in the beginning and 343.9MB in the end (delta: 243.3MB). Free memory was 70.6MB in the beginning and 289.5MB in the end (delta: -218.9MB). Peak memory consumption was 218.4MB. Max. memory is 16.1GB. * Witness Printer took 89.43ms. Allocated memory is still 343.9MB. Free memory was 285.7MB in the beginning and 283.0MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 830]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 830]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 74 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 135 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 127 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 277 IncrementalHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 0 mSDtfsCounter, 277 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=174occurred in iteration=2, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-07 23:26:18,200 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 Writing output log to file Ultimate.log Result: TRUE