./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing.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/goblint-regression/28-race_reach_61-invariant_racing.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', 'b4399e58ed3ca9c75e2a61372e91a4308548a0e79a3eb4428d85990bd71242f7'] 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/goblint-regression/28-race_reach_61-invariant_racing.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 b4399e58ed3ca9c75e2a61372e91a4308548a0e79a3eb4428d85990bd71242f7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:34:06,616 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:34:06,724 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:34:06,732 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:34:06,733 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:34:06,755 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:34:06,757 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:34:06,758 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:34:06,758 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:34:06,758 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:34:06,759 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:34:06,759 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:34:06,759 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:34:06,759 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:34:06,759 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:34:06,759 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:34:06,760 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:34:06,760 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:34:06,760 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:34:06,760 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:34:06,760 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:34:06,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:34:06,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:34:06,761 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:34:06,761 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:34:06,761 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:34:06,762 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:34:06,762 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:34:06,762 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:34:06,762 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:34:06,762 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:34:06,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:34:06,762 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:34:06,762 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:34:06,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:34:06,763 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:34:06,763 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:34:06,763 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:34:06,763 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:34:06,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:34:06,763 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:34:06,763 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:34:06,763 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:34:06,763 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:34:06,763 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 -> b4399e58ed3ca9c75e2a61372e91a4308548a0e79a3eb4428d85990bd71242f7 [2024-11-07 23:34:07,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:34:07,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:34:07,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:34:07,018 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:34:07,019 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:34:07,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing.i [2024-11-07 23:34:08,307 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:34:08,553 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:34:08,554 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing.i [2024-11-07 23:34:08,562 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d66a3a651/b25241f3d84b46d7b69660476101b0f5/FLAG1a3df06e0 [2024-11-07 23:34:08,571 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d66a3a651/b25241f3d84b46d7b69660476101b0f5 [2024-11-07 23:34:08,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:34:08,574 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:34:08,575 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:34:08,575 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:34:08,578 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:34:08,578 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:34:08" (1/1) ... [2024-11-07 23:34:08,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64b14af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:08, skipping insertion in model container [2024-11-07 23:34:08,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:34:08" (1/1) ... [2024-11-07 23:34:08,604 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:34:08,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:34:08,818 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:34:08,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:34:08,874 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:34:08,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:08 WrapperNode [2024-11-07 23:34:08,875 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:34:08,876 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:34:08,876 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:34:08,876 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:34:08,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:08" (1/1) ... [2024-11-07 23:34:08,892 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:08" (1/1) ... [2024-11-07 23:34:08,914 INFO L138 Inliner]: procedures = 171, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 116 [2024-11-07 23:34:08,915 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:34:08,916 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:34:08,916 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:34:08,916 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:34:08,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:08" (1/1) ... [2024-11-07 23:34:08,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:08" (1/1) ... [2024-11-07 23:34:08,925 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:08" (1/1) ... [2024-11-07 23:34:08,945 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 5, 5, 2]. 36 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-11-07 23:34:08,949 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:08" (1/1) ... [2024-11-07 23:34:08,949 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:08" (1/1) ... [2024-11-07 23:34:08,958 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:08" (1/1) ... [2024-11-07 23:34:08,962 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:08" (1/1) ... [2024-11-07 23:34:08,965 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:08" (1/1) ... [2024-11-07 23:34:08,968 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:08" (1/1) ... [2024-11-07 23:34:08,970 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:34:08,970 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:34:08,970 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:34:08,970 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:34:08,971 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:08" (1/1) ... [2024-11-07 23:34:08,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:34:08,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:34:09,002 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 23:34:09,005 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 23:34:09,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 23:34:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 23:34:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 23:34:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 23:34:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 23:34:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 23:34:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 23:34:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 23:34:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 23:34:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:34:09,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 23:34:09,028 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-07 23:34:09,028 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-07 23:34:09,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 23:34:09,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:34:09,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 23:34:09,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 23:34:09,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 23:34:09,029 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 23:34:09,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:34:09,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:34:09,031 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 23:34:09,157 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:34:09,159 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:34:09,325 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:34:09,326 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:34:09,429 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:34:09,429 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-07 23:34:09,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:34:09 BoogieIcfgContainer [2024-11-07 23:34:09,431 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:34:09,433 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:34:09,433 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:34:09,436 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:34:09,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:34:08" (1/3) ... [2024-11-07 23:34:09,437 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2baf9a2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:34:09, skipping insertion in model container [2024-11-07 23:34:09,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:34:08" (2/3) ... [2024-11-07 23:34:09,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2baf9a2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:34:09, skipping insertion in model container [2024-11-07 23:34:09,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:34:09" (3/3) ... [2024-11-07 23:34:09,439 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_61-invariant_racing.i [2024-11-07 23:34:09,449 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:34:09,450 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-07 23:34:09,450 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:34:09,499 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-07 23:34:09,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 97 transitions, 201 flow [2024-11-07 23:34:09,597 INFO L124 PetriNetUnfolderBase]: 24/138 cut-off events. [2024-11-07 23:34:09,599 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 23:34:09,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 138 events. 24/138 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 484 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 88. Up to 6 conditions per place. [2024-11-07 23:34:09,602 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 97 transitions, 201 flow [2024-11-07 23:34:09,605 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 96 transitions, 199 flow [2024-11-07 23:34:09,610 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:34:09,617 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;@2a9dedca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:34:09,617 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-07 23:34:09,622 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:34:09,622 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-11-07 23:34:09,622 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:34:09,622 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:09,623 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-07 23:34:09,623 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:34:09,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:09,626 INFO L85 PathProgramCache]: Analyzing trace with hash 442945318, now seen corresponding path program 1 times [2024-11-07 23:34:09,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:09,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100463071] [2024-11-07 23:34:09,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:09,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:09,786 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 23:34:09,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:09,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100463071] [2024-11-07 23:34:09,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100463071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:34:09,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:34:09,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:34:09,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286248954] [2024-11-07 23:34:09,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:34:09,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:34:09,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:09,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:34:09,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:34:09,815 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 97 [2024-11-07 23:34:09,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 96 transitions, 199 flow. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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 23:34:09,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:09,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 97 [2024-11-07 23:34:09,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:10,050 INFO L124 PetriNetUnfolderBase]: 321/1001 cut-off events. [2024-11-07 23:34:10,050 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 23:34:10,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1666 conditions, 1001 events. 321/1001 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6276 event pairs, 72 based on Foata normal form. 177/1096 useless extension candidates. Maximal degree in co-relation 1635. Up to 610 conditions per place. [2024-11-07 23:34:10,057 INFO L140 encePairwiseOnDemand]: 77/97 looper letters, 66 selfloop transitions, 3 changer transitions 0/111 dead transitions. [2024-11-07 23:34:10,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 111 transitions, 367 flow [2024-11-07 23:34:10,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:34:10,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:34:10,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 266 transitions. [2024-11-07 23:34:10,066 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6855670103092784 [2024-11-07 23:34:10,067 INFO L175 Difference]: Start difference. First operand has 84 places, 96 transitions, 199 flow. Second operand 4 states and 266 transitions. [2024-11-07 23:34:10,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 111 transitions, 367 flow [2024-11-07 23:34:10,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 111 transitions, 367 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:34:10,074 INFO L231 Difference]: Finished difference. Result has 86 places, 80 transitions, 177 flow [2024-11-07 23:34:10,075 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=177, PETRI_PLACES=86, PETRI_TRANSITIONS=80} [2024-11-07 23:34:10,077 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, 2 predicate places. [2024-11-07 23:34:10,077 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 80 transitions, 177 flow [2024-11-07 23:34:10,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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 23:34:10,078 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:10,078 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-07 23:34:10,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 23:34:10,078 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-07 23:34:10,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:10,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1644931690, now seen corresponding path program 1 times [2024-11-07 23:34:10,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:10,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194710998] [2024-11-07 23:34:10,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:10,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:34:10,096 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:34:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:34:10,118 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:34:10,118 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 23:34:10,120 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-11-07 23:34:10,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2024-11-07 23:34:10,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2024-11-07 23:34:10,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2024-11-07 23:34:10,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2024-11-07 23:34:10,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2024-11-07 23:34:10,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2024-11-07 23:34:10,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2024-11-07 23:34:10,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2024-11-07 23:34:10,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2024-11-07 23:34:10,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2024-11-07 23:34:10,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2024-11-07 23:34:10,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2024-11-07 23:34:10,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2024-11-07 23:34:10,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2024-11-07 23:34:10,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2024-11-07 23:34:10,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2024-11-07 23:34:10,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 23:34:10,123 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-07 23:34:10,124 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 23:34:10,124 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-07 23:34:10,143 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 23:34:10,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 141 transitions, 298 flow [2024-11-07 23:34:10,199 INFO L124 PetriNetUnfolderBase]: 41/242 cut-off events. [2024-11-07 23:34:10,199 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-11-07 23:34:10,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 242 events. 41/242 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1072 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 146. Up to 9 conditions per place. [2024-11-07 23:34:10,201 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 141 transitions, 298 flow [2024-11-07 23:34:10,202 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 141 transitions, 298 flow [2024-11-07 23:34:10,203 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:34:10,203 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;@2a9dedca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:34:10,203 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-07 23:34:10,205 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:34:10,205 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-11-07 23:34:10,205 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:34:10,205 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:10,205 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-07 23:34:10,205 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-07 23:34:10,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:10,206 INFO L85 PathProgramCache]: Analyzing trace with hash 577542685, now seen corresponding path program 1 times [2024-11-07 23:34:10,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:10,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248742080] [2024-11-07 23:34:10,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:10,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:10,256 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 23:34:10,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:10,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248742080] [2024-11-07 23:34:10,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248742080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:34:10,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:34:10,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:34:10,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769867866] [2024-11-07 23:34:10,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:34:10,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:34:10,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:10,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:34:10,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:34:10,262 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 141 [2024-11-07 23:34:10,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 141 transitions, 298 flow. Second operand has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 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 23:34:10,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:10,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 141 [2024-11-07 23:34:10,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:12,181 INFO L124 PetriNetUnfolderBase]: 11566/24256 cut-off events. [2024-11-07 23:34:12,182 INFO L125 PetriNetUnfolderBase]: For 194/194 co-relation queries the response was YES. [2024-11-07 23:34:12,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42202 conditions, 24256 events. 11566/24256 cut-off events. For 194/194 co-relation queries the response was YES. Maximal size of possible extension queue 586. Compared 233600 event pairs, 5340 based on Foata normal form. 4360/26528 useless extension candidates. Maximal degree in co-relation 3291. Up to 17810 conditions per place. [2024-11-07 23:34:12,315 INFO L140 encePairwiseOnDemand]: 115/141 looper letters, 88 selfloop transitions, 3 changer transitions 0/154 dead transitions. [2024-11-07 23:34:12,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 154 transitions, 506 flow [2024-11-07 23:34:12,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:34:12,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:34:12,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 378 transitions. [2024-11-07 23:34:12,318 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6702127659574468 [2024-11-07 23:34:12,318 INFO L175 Difference]: Start difference. First operand has 122 places, 141 transitions, 298 flow. Second operand 4 states and 378 transitions. [2024-11-07 23:34:12,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 154 transitions, 506 flow [2024-11-07 23:34:12,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 154 transitions, 506 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:34:12,322 INFO L231 Difference]: Finished difference. Result has 127 places, 123 transitions, 282 flow [2024-11-07 23:34:12,322 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=282, PETRI_PLACES=127, PETRI_TRANSITIONS=123} [2024-11-07 23:34:12,322 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 5 predicate places. [2024-11-07 23:34:12,323 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 123 transitions, 282 flow [2024-11-07 23:34:12,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 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 23:34:12,323 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:12,323 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-07 23:34:12,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 23:34:12,324 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-07 23:34:12,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:12,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1588186234, now seen corresponding path program 1 times [2024-11-07 23:34:12,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:12,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731214235] [2024-11-07 23:34:12,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:12,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:12,426 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:34:12,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:12,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731214235] [2024-11-07 23:34:12,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731214235] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:34:12,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556761383] [2024-11-07 23:34:12,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:12,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:34:12,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:34:12,431 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:34:12,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 23:34:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:12,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:34:12,514 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:34:12,565 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:34:12,565 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:34:12,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556761383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:34:12,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:34:12,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-07 23:34:12,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652547943] [2024-11-07 23:34:12,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:34:12,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:34:12,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:12,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:34:12,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:34:12,574 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 141 [2024-11-07 23:34:12,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 123 transitions, 282 flow. Second operand has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 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 23:34:12,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:12,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 141 [2024-11-07 23:34:12,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:14,269 INFO L124 PetriNetUnfolderBase]: 11268/23261 cut-off events. [2024-11-07 23:34:14,270 INFO L125 PetriNetUnfolderBase]: For 1176/1176 co-relation queries the response was YES. [2024-11-07 23:34:14,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41726 conditions, 23261 events. 11268/23261 cut-off events. For 1176/1176 co-relation queries the response was YES. Maximal size of possible extension queue 567. Compared 220800 event pairs, 1101 based on Foata normal form. 256/22046 useless extension candidates. Maximal degree in co-relation 36393. Up to 13608 conditions per place. [2024-11-07 23:34:14,376 INFO L140 encePairwiseOnDemand]: 136/141 looper letters, 144 selfloop transitions, 6 changer transitions 0/213 dead transitions. [2024-11-07 23:34:14,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 213 transitions, 760 flow [2024-11-07 23:34:14,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:34:14,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:34:14,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 529 transitions. [2024-11-07 23:34:14,380 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6252955082742316 [2024-11-07 23:34:14,381 INFO L175 Difference]: Start difference. First operand has 127 places, 123 transitions, 282 flow. Second operand 6 states and 529 transitions. [2024-11-07 23:34:14,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 213 transitions, 760 flow [2024-11-07 23:34:14,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 213 transitions, 758 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:34:14,391 INFO L231 Difference]: Finished difference. Result has 130 places, 122 transitions, 288 flow [2024-11-07 23:34:14,391 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=288, PETRI_PLACES=130, PETRI_TRANSITIONS=122} [2024-11-07 23:34:14,392 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 8 predicate places. [2024-11-07 23:34:14,393 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 122 transitions, 288 flow [2024-11-07 23:34:14,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.5) internal successors, (387), 6 states have internal predecessors, (387), 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 23:34:14,393 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:14,393 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-07 23:34:14,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 23:34:14,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:34:14,598 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-07 23:34:14,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:14,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1989132355, now seen corresponding path program 1 times [2024-11-07 23:34:14,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:14,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386438161] [2024-11-07 23:34:14,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:14,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:14,669 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:34:14,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:14,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386438161] [2024-11-07 23:34:14,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386438161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:34:14,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:34:14,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:34:14,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775953580] [2024-11-07 23:34:14,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:34:14,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:34:14,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:14,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:34:14,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:34:14,695 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 141 [2024-11-07 23:34:14,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 122 transitions, 288 flow. Second operand has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 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 23:34:14,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:14,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 141 [2024-11-07 23:34:14,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:16,122 INFO L124 PetriNetUnfolderBase]: 10315/21388 cut-off events. [2024-11-07 23:34:16,123 INFO L125 PetriNetUnfolderBase]: For 2012/2012 co-relation queries the response was YES. [2024-11-07 23:34:16,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39199 conditions, 21388 events. 10315/21388 cut-off events. For 2012/2012 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 201315 event pairs, 481 based on Foata normal form. 256/20608 useless extension candidates. Maximal degree in co-relation 28645. Up to 13983 conditions per place. [2024-11-07 23:34:16,233 INFO L140 encePairwiseOnDemand]: 136/141 looper letters, 113 selfloop transitions, 6 changer transitions 0/182 dead transitions. [2024-11-07 23:34:16,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 182 transitions, 644 flow [2024-11-07 23:34:16,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:34:16,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:34:16,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 370 transitions. [2024-11-07 23:34:16,235 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6560283687943262 [2024-11-07 23:34:16,235 INFO L175 Difference]: Start difference. First operand has 130 places, 122 transitions, 288 flow. Second operand 4 states and 370 transitions. [2024-11-07 23:34:16,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 182 transitions, 644 flow [2024-11-07 23:34:16,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 182 transitions, 628 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-11-07 23:34:16,243 INFO L231 Difference]: Finished difference. Result has 128 places, 122 transitions, 288 flow [2024-11-07 23:34:16,243 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=288, PETRI_PLACES=128, PETRI_TRANSITIONS=122} [2024-11-07 23:34:16,247 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 6 predicate places. [2024-11-07 23:34:16,247 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 122 transitions, 288 flow [2024-11-07 23:34:16,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 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 23:34:16,247 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:16,248 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:34:16,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 23:34:16,248 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-07 23:34:16,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:16,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1993106221, now seen corresponding path program 1 times [2024-11-07 23:34:16,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:16,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083033246] [2024-11-07 23:34:16,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:16,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:16,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:34:16,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:16,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083033246] [2024-11-07 23:34:16,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083033246] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:34:16,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646226665] [2024-11-07 23:34:16,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:16,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:34:16,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:34:16,344 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:34:16,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 23:34:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:16,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:34:16,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:34:16,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:34:16,425 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:34:16,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:34:16,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646226665] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:34:16,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:34:16,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-07 23:34:16,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629683367] [2024-11-07 23:34:16,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:34:16,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 23:34:16,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:16,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 23:34:16,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-07 23:34:16,463 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 141 [2024-11-07 23:34:16,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 122 transitions, 288 flow. Second operand has 10 states, 10 states have (on average 64.9) internal successors, (649), 10 states have internal predecessors, (649), 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 23:34:16,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:16,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 141 [2024-11-07 23:34:16,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:34:16,884 INFO L124 PetriNetUnfolderBase]: 1758/3780 cut-off events. [2024-11-07 23:34:16,885 INFO L125 PetriNetUnfolderBase]: For 2686/2686 co-relation queries the response was YES. [2024-11-07 23:34:16,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8286 conditions, 3780 events. 1758/3780 cut-off events. For 2686/2686 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 27904 event pairs, 0 based on Foata normal form. 272/3953 useless extension candidates. Maximal degree in co-relation 613. Up to 1472 conditions per place. [2024-11-07 23:34:16,902 INFO L140 encePairwiseOnDemand]: 137/141 looper letters, 125 selfloop transitions, 5 changer transitions 0/174 dead transitions. [2024-11-07 23:34:16,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 174 transitions, 648 flow [2024-11-07 23:34:16,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 23:34:16,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 23:34:16,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 573 transitions. [2024-11-07 23:34:16,904 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5805471124620061 [2024-11-07 23:34:16,904 INFO L175 Difference]: Start difference. First operand has 128 places, 122 transitions, 288 flow. Second operand 7 states and 573 transitions. [2024-11-07 23:34:16,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 174 transitions, 648 flow [2024-11-07 23:34:16,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 174 transitions, 639 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:34:16,911 INFO L231 Difference]: Finished difference. Result has 95 places, 83 transitions, 205 flow [2024-11-07 23:34:16,911 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=205, PETRI_PLACES=95, PETRI_TRANSITIONS=83} [2024-11-07 23:34:16,912 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -27 predicate places. [2024-11-07 23:34:16,912 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 83 transitions, 205 flow [2024-11-07 23:34:16,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 64.9) internal successors, (649), 10 states have internal predecessors, (649), 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 23:34:16,912 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:16,912 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2024-11-07 23:34:16,943 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 23:34:17,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:34:17,117 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-07 23:34:17,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:17,117 INFO L85 PathProgramCache]: Analyzing trace with hash -295727839, now seen corresponding path program 1 times [2024-11-07 23:34:17,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:17,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67129684] [2024-11-07 23:34:17,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:17,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:34:17,141 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:34:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:34:17,152 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:34:17,153 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 23:34:17,153 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-07 23:34:17,153 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2024-11-07 23:34:17,153 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2024-11-07 23:34:17,153 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2024-11-07 23:34:17,153 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2024-11-07 23:34:17,153 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2024-11-07 23:34:17,153 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2024-11-07 23:34:17,153 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2024-11-07 23:34:17,153 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2024-11-07 23:34:17,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2024-11-07 23:34:17,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2024-11-07 23:34:17,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2024-11-07 23:34:17,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2024-11-07 23:34:17,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2024-11-07 23:34:17,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2024-11-07 23:34:17,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2024-11-07 23:34:17,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2024-11-07 23:34:17,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2024-11-07 23:34:17,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2024-11-07 23:34:17,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2024-11-07 23:34:17,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2024-11-07 23:34:17,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 23:34:17,155 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-07 23:34:17,155 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-07 23:34:17,155 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-07 23:34:17,177 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-07 23:34:17,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 185 transitions, 397 flow [2024-11-07 23:34:17,206 INFO L124 PetriNetUnfolderBase]: 61/365 cut-off events. [2024-11-07 23:34:17,206 INFO L125 PetriNetUnfolderBase]: For 19/22 co-relation queries the response was YES. [2024-11-07 23:34:17,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 365 events. 61/365 cut-off events. For 19/22 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1787 event pairs, 1 based on Foata normal form. 0/252 useless extension candidates. Maximal degree in co-relation 257. Up to 12 conditions per place. [2024-11-07 23:34:17,207 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 185 transitions, 397 flow [2024-11-07 23:34:17,210 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 185 transitions, 397 flow [2024-11-07 23:34:17,210 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:34:17,210 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;@2a9dedca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:34:17,211 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-07 23:34:17,212 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:34:17,212 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-11-07 23:34:17,212 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:34:17,212 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:34:17,212 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-07 23:34:17,213 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-07 23:34:17,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:34:17,213 INFO L85 PathProgramCache]: Analyzing trace with hash 754129472, now seen corresponding path program 1 times [2024-11-07 23:34:17,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:34:17,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720325072] [2024-11-07 23:34:17,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:34:17,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:34:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:34:17,241 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 23:34:17,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:34:17,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720325072] [2024-11-07 23:34:17,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720325072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:34:17,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:34:17,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:34:17,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385783094] [2024-11-07 23:34:17,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:34:17,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:34:17,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:34:17,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:34:17,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:34:17,247 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 185 [2024-11-07 23:34:17,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 185 transitions, 397 flow. Second operand has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 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 23:34:17,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:34:17,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 185 [2024-11-07 23:34:17,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand