./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c --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/weaver/popl20-bad-commit-2.wvr-bad.c', '-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', '5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206'] 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/weaver/popl20-bad-commit-2.wvr-bad.c -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 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:39:23,909 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:39:24,000 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:39:24,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:39:24,009 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:39:24,044 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:39:24,047 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:39:24,048 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:39:24,048 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:39:24,048 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:39:24,048 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:39:24,048 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:39:24,049 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:39:24,049 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:39:24,049 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:39:24,049 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:39:24,049 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:39:24,049 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:39:24,049 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:39:24,049 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:39:24,049 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:39:24,050 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:39:24,050 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:39:24,050 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:39:24,050 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:39:24,050 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:39:24,050 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:39:24,050 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:39:24,050 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:39:24,050 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:39:24,050 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:39:24,050 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:39:24,050 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:39:24,050 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:39:24,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:39:24,051 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:39:24,051 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:39:24,051 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:39:24,051 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:39:24,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:39:24,051 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:39:24,054 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:39:24,054 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:39:24,054 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:39:24,054 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 -> 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 [2024-11-07 23:39:24,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:39:24,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:39:24,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:39:24,356 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:39:24,357 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:39:24,358 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2024-11-07 23:39:25,655 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:39:25,938 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:39:25,940 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2024-11-07 23:39:25,950 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b24d126f3/ed94a36b03a64b6fb35355a894195a6d/FLAG38eb77df3 [2024-11-07 23:39:25,971 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b24d126f3/ed94a36b03a64b6fb35355a894195a6d [2024-11-07 23:39:25,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:39:25,975 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:39:25,977 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:39:25,977 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:39:25,980 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:39:25,982 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:39:25" (1/1) ... [2024-11-07 23:39:25,984 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed0dcfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:25, skipping insertion in model container [2024-11-07 23:39:25,984 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:39:25" (1/1) ... [2024-11-07 23:39:26,008 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:39:26,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:39:26,230 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:39:26,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:39:26,281 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:39:26,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:26 WrapperNode [2024-11-07 23:39:26,282 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:39:26,283 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:39:26,283 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:39:26,283 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:39:26,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:26" (1/1) ... [2024-11-07 23:39:26,296 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:26" (1/1) ... [2024-11-07 23:39:26,331 INFO L138 Inliner]: procedures = 25, calls = 74, calls flagged for inlining = 28, calls inlined = 34, statements flattened = 495 [2024-11-07 23:39:26,332 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:39:26,333 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:39:26,333 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:39:26,333 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:39:26,342 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:26" (1/1) ... [2024-11-07 23:39:26,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:26" (1/1) ... [2024-11-07 23:39:26,348 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:26" (1/1) ... [2024-11-07 23:39:26,371 INFO L175 MemorySlicer]: Split 18 memory accesses to 2 slices as follows [2, 16]. 89 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4]. [2024-11-07 23:39:26,372 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:26" (1/1) ... [2024-11-07 23:39:26,372 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:26" (1/1) ... [2024-11-07 23:39:26,383 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:26" (1/1) ... [2024-11-07 23:39:26,388 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:26" (1/1) ... [2024-11-07 23:39:26,390 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:26" (1/1) ... [2024-11-07 23:39:26,392 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:26" (1/1) ... [2024-11-07 23:39:26,395 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:39:26,396 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:39:26,396 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:39:26,396 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:39:26,397 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:26" (1/1) ... [2024-11-07 23:39:26,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:39:26,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:39:26,432 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 23:39:26,435 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 23:39:26,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:39:26,458 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 23:39:26,458 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 23:39:26,458 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 23:39:26,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 23:39:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-07 23:39:26,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-07 23:39:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-07 23:39:26,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-07 23:39:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:39:26,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 23:39:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 23:39:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 23:39:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-07 23:39:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-07 23:39:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 23:39:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:39:26,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:39:26,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 23:39:26,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 23:39:26,463 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 23:39:26,608 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:39:26,610 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:39:27,390 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:39:27,390 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:39:28,013 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:39:28,013 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-07 23:39:28,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:39:28 BoogieIcfgContainer [2024-11-07 23:39:28,014 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:39:28,016 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:39:28,016 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:39:28,021 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:39:28,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:39:25" (1/3) ... [2024-11-07 23:39:28,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383efeaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:39:28, skipping insertion in model container [2024-11-07 23:39:28,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:26" (2/3) ... [2024-11-07 23:39:28,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383efeaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:39:28, skipping insertion in model container [2024-11-07 23:39:28,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:39:28" (3/3) ... [2024-11-07 23:39:28,023 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-commit-2.wvr-bad.c [2024-11-07 23:39:28,035 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:39:28,035 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2024-11-07 23:39:28,035 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:39:28,163 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-07 23:39:28,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 122 transitions, 272 flow [2024-11-07 23:39:28,257 INFO L124 PetriNetUnfolderBase]: 24/118 cut-off events. [2024-11-07 23:39:28,260 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-07 23:39:28,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 118 events. 24/118 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 417 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 102. Up to 8 conditions per place. [2024-11-07 23:39:28,266 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 122 transitions, 272 flow [2024-11-07 23:39:28,273 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 116 transitions, 253 flow [2024-11-07 23:39:28,284 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:39:28,296 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;@5bd3a766, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:39:28,300 INFO L334 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2024-11-07 23:39:28,305 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:39:28,307 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-07 23:39:28,307 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:39:28,307 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:39:28,308 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-07 23:39:28,308 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-07 23:39:28,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:39:28,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1446319, now seen corresponding path program 1 times [2024-11-07 23:39:28,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:39:28,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128914912] [2024-11-07 23:39:28,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:39:28,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:39:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:39:28,593 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 23:39:28,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:39:28,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128914912] [2024-11-07 23:39:28,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128914912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:39:28,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:39:28,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:39:28,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6945073] [2024-11-07 23:39:28,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:39:28,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:39:28,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:39:28,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:39:28,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:39:28,668 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 122 [2024-11-07 23:39:28,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 116 transitions, 253 flow. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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 23:39:28,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:39:28,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 122 [2024-11-07 23:39:28,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:39:33,940 INFO L124 PetriNetUnfolderBase]: 40188/53468 cut-off events. [2024-11-07 23:39:33,941 INFO L125 PetriNetUnfolderBase]: For 1549/1549 co-relation queries the response was YES. [2024-11-07 23:39:34,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103197 conditions, 53468 events. 40188/53468 cut-off events. For 1549/1549 co-relation queries the response was YES. Maximal size of possible extension queue 3601. Compared 344949 event pairs, 26584 based on Foata normal form. 4/33216 useless extension candidates. Maximal degree in co-relation 99324. Up to 48058 conditions per place. [2024-11-07 23:39:34,407 INFO L140 encePairwiseOnDemand]: 85/122 looper letters, 71 selfloop transitions, 13 changer transitions 0/112 dead transitions. [2024-11-07 23:39:34,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 112 transitions, 413 flow [2024-11-07 23:39:34,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:39:34,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:39:34,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 236 transitions. [2024-11-07 23:39:34,422 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48360655737704916 [2024-11-07 23:39:34,423 INFO L175 Difference]: Start difference. First operand has 105 places, 116 transitions, 253 flow. Second operand 4 states and 236 transitions. [2024-11-07 23:39:34,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 112 transitions, 413 flow [2024-11-07 23:39:34,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 112 transitions, 400 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-07 23:39:34,491 INFO L231 Difference]: Finished difference. Result has 92 places, 112 transitions, 324 flow [2024-11-07 23:39:34,493 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=324, PETRI_PLACES=92, PETRI_TRANSITIONS=112} [2024-11-07 23:39:34,497 INFO L277 CegarLoopForPetriNet]: 105 programPoint places, -13 predicate places. [2024-11-07 23:39:34,497 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 112 transitions, 324 flow [2024-11-07 23:39:34,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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 23:39:34,498 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:39:34,498 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-07 23:39:34,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 23:39:34,499 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-07 23:39:34,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:39:34,500 INFO L85 PathProgramCache]: Analyzing trace with hash 139082869, now seen corresponding path program 1 times [2024-11-07 23:39:34,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:39:34,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42885808] [2024-11-07 23:39:34,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:39:34,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:39:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:39:34,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:39:34,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:39:34,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42885808] [2024-11-07 23:39:34,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42885808] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:39:34,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690607834] [2024-11-07 23:39:34,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:39:34,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:39:34,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:39:34,722 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 23:39:34,724 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 23:39:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:39:34,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:39:34,830 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:39:34,879 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:39:34,880 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:39:34,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690607834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:39:34,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:39:34,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-07 23:39:34,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112139823] [2024-11-07 23:39:34,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:39:34,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:39:34,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:39:34,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:39:34,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:39:34,918 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 122 [2024-11-07 23:39:34,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 112 transitions, 324 flow. Second operand has 6 states, 6 states have (on average 32.833333333333336) internal successors, (197), 6 states have internal predecessors, (197), 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 23:39:34,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:39:34,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 122 [2024-11-07 23:39:34,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:39:38,303 INFO L124 PetriNetUnfolderBase]: 40188/53464 cut-off events. [2024-11-07 23:39:38,304 INFO L125 PetriNetUnfolderBase]: For 320/320 co-relation queries the response was YES. [2024-11-07 23:39:38,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102742 conditions, 53464 events. 40188/53464 cut-off events. For 320/320 co-relation queries the response was YES. Maximal size of possible extension queue 3601. Compared 345012 event pairs, 26584 based on Foata normal form. 4/33219 useless extension candidates. Maximal degree in co-relation 102646. Up to 48038 conditions per place. [2024-11-07 23:39:38,675 INFO L140 encePairwiseOnDemand]: 105/122 looper letters, 58 selfloop transitions, 22 changer transitions 0/108 dead transitions. [2024-11-07 23:39:38,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 108 transitions, 468 flow [2024-11-07 23:39:38,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:39:38,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:39:38,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 276 transitions. [2024-11-07 23:39:38,679 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3770491803278688 [2024-11-07 23:39:38,681 INFO L175 Difference]: Start difference. First operand has 92 places, 112 transitions, 324 flow. Second operand 6 states and 276 transitions. [2024-11-07 23:39:38,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 108 transitions, 468 flow [2024-11-07 23:39:38,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 108 transitions, 468 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:39:38,686 INFO L231 Difference]: Finished difference. Result has 93 places, 108 transitions, 352 flow [2024-11-07 23:39:38,686 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=352, PETRI_PLACES=93, PETRI_TRANSITIONS=108} [2024-11-07 23:39:38,687 INFO L277 CegarLoopForPetriNet]: 105 programPoint places, -12 predicate places. [2024-11-07 23:39:38,689 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 108 transitions, 352 flow [2024-11-07 23:39:38,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.833333333333336) internal successors, (197), 6 states have internal predecessors, (197), 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 23:39:38,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:39:38,690 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-07 23:39:38,708 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 23:39:38,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:39:38,891 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-07 23:39:38,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:39:38,891 INFO L85 PathProgramCache]: Analyzing trace with hash 16603118, now seen corresponding path program 1 times [2024-11-07 23:39:38,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:39:38,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284889901] [2024-11-07 23:39:38,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:39:38,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:39:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:39:39,029 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:39:39,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:39:39,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284889901] [2024-11-07 23:39:39,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284889901] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:39:39,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149349694] [2024-11-07 23:39:39,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:39:39,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:39:39,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:39:39,032 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 23:39:39,036 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 23:39:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:39:39,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:39:39,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:39:39,164 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:39:39,164 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:39:39,211 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:39:39,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149349694] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:39:39,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:39:39,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-07 23:39:39,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854110041] [2024-11-07 23:39:39,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:39:39,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 23:39:39,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:39:39,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 23:39:39,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:39:39,268 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 122 [2024-11-07 23:39:39,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 108 transitions, 352 flow. Second operand has 12 states, 12 states have (on average 33.083333333333336) internal successors, (397), 12 states have internal predecessors, (397), 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 23:39:39,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:39:39,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 122 [2024-11-07 23:39:39,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:39:42,543 INFO L124 PetriNetUnfolderBase]: 40200/53512 cut-off events. [2024-11-07 23:39:42,543 INFO L125 PetriNetUnfolderBase]: For 408/408 co-relation queries the response was YES. [2024-11-07 23:39:42,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102930 conditions, 53512 events. 40200/53512 cut-off events. For 408/408 co-relation queries the response was YES. Maximal size of possible extension queue 3600. Compared 345345 event pairs, 26584 based on Foata normal form. 12/33276 useless extension candidates. Maximal degree in co-relation 102648. Up to 48057 conditions per place. [2024-11-07 23:39:42,928 INFO L140 encePairwiseOnDemand]: 105/122 looper letters, 67 selfloop transitions, 49 changer transitions 0/144 dead transitions. [2024-11-07 23:39:42,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 144 transitions, 818 flow [2024-11-07 23:39:42,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:39:42,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 23:39:42,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 448 transitions. [2024-11-07 23:39:42,931 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36721311475409835 [2024-11-07 23:39:42,931 INFO L175 Difference]: Start difference. First operand has 93 places, 108 transitions, 352 flow. Second operand 10 states and 448 transitions. [2024-11-07 23:39:42,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 144 transitions, 818 flow [2024-11-07 23:39:42,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 144 transitions, 710 flow, removed 20 selfloop flow, removed 5 redundant places. [2024-11-07 23:39:42,938 INFO L231 Difference]: Finished difference. Result has 100 places, 144 transitions, 642 flow [2024-11-07 23:39:42,938 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=642, PETRI_PLACES=100, PETRI_TRANSITIONS=144} [2024-11-07 23:39:42,939 INFO L277 CegarLoopForPetriNet]: 105 programPoint places, -5 predicate places. [2024-11-07 23:39:42,939 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 144 transitions, 642 flow [2024-11-07 23:39:42,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 33.083333333333336) internal successors, (397), 12 states have internal predecessors, (397), 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 23:39:42,940 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:39:42,940 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:39:43,115 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 23:39:43,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:39:43,147 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-07 23:39:43,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:39:43,148 INFO L85 PathProgramCache]: Analyzing trace with hash -917776677, now seen corresponding path program 1 times [2024-11-07 23:39:43,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:39:43,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881762636] [2024-11-07 23:39:43,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:39:43,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:39:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:39:43,289 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 23:39:43,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:39:43,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881762636] [2024-11-07 23:39:43,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881762636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:39:43,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:39:43,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:39:43,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655408590] [2024-11-07 23:39:43,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:39:43,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:39:43,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:39:43,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:39:43,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:39:43,291 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 122 [2024-11-07 23:39:43,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 144 transitions, 642 flow. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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 23:39:43,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:39:43,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 122 [2024-11-07 23:39:43,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:39:48,789 INFO L124 PetriNetUnfolderBase]: 68337/91069 cut-off events. [2024-11-07 23:39:48,789 INFO L125 PetriNetUnfolderBase]: For 854/854 co-relation queries the response was YES. [2024-11-07 23:39:48,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175384 conditions, 91069 events. 68337/91069 cut-off events. For 854/854 co-relation queries the response was YES. Maximal size of possible extension queue 5146. Compared 611142 event pairs, 21415 based on Foata normal form. 2363/60168 useless extension candidates. Maximal degree in co-relation 175255. Up to 50735 conditions per place. [2024-11-07 23:39:49,332 INFO L140 encePairwiseOnDemand]: 112/122 looper letters, 150 selfloop transitions, 4 changer transitions 0/186 dead transitions. [2024-11-07 23:39:49,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 186 transitions, 1040 flow [2024-11-07 23:39:49,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:39:49,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:39:49,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2024-11-07 23:39:49,333 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6338797814207651 [2024-11-07 23:39:49,333 INFO L175 Difference]: Start difference. First operand has 100 places, 144 transitions, 642 flow. Second operand 3 states and 232 transitions. [2024-11-07 23:39:49,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 186 transitions, 1040 flow [2024-11-07 23:39:49,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 186 transitions, 990 flow, removed 12 selfloop flow, removed 2 redundant places. [2024-11-07 23:39:49,341 INFO L231 Difference]: Finished difference. Result has 101 places, 147 transitions, 628 flow [2024-11-07 23:39:49,343 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=628, PETRI_PLACES=101, PETRI_TRANSITIONS=147} [2024-11-07 23:39:49,344 INFO L277 CegarLoopForPetriNet]: 105 programPoint places, -4 predicate places. [2024-11-07 23:39:49,344 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 147 transitions, 628 flow [2024-11-07 23:39:49,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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 23:39:49,344 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:39:49,344 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:39:49,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 23:39:49,345 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-07 23:39:49,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:39:49,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1613696648, now seen corresponding path program 1 times [2024-11-07 23:39:49,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:39:49,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625786071] [2024-11-07 23:39:49,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:39:49,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:39:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:39:49,426 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 23:39:49,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:39:49,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625786071] [2024-11-07 23:39:49,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625786071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:39:49,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:39:49,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:39:49,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508296294] [2024-11-07 23:39:49,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:39:49,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:39:49,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:39:49,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:39:49,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:39:49,446 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 122 [2024-11-07 23:39:49,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 147 transitions, 628 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 23:39:49,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:39:49,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 122 [2024-11-07 23:39:49,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:39:56,727 INFO L124 PetriNetUnfolderBase]: 97694/129568 cut-off events. [2024-11-07 23:39:56,727 INFO L125 PetriNetUnfolderBase]: For 9896/10064 co-relation queries the response was YES. [2024-11-07 23:39:57,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269418 conditions, 129568 events. 97694/129568 cut-off events. For 9896/10064 co-relation queries the response was YES. Maximal size of possible extension queue 3481. Compared 821643 event pairs, 31944 based on Foata normal form. 0/98062 useless extension candidates. Maximal degree in co-relation 269294. Up to 66408 conditions per place. [2024-11-07 23:39:57,611 INFO L140 encePairwiseOnDemand]: 117/122 looper letters, 155 selfloop transitions, 4 changer transitions 0/184 dead transitions. [2024-11-07 23:39:57,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 184 transitions, 1032 flow [2024-11-07 23:39:57,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:39:57,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:39:57,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2024-11-07 23:39:57,613 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5683060109289617 [2024-11-07 23:39:57,613 INFO L175 Difference]: Start difference. First operand has 101 places, 147 transitions, 628 flow. Second operand 3 states and 208 transitions. [2024-11-07 23:39:57,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 184 transitions, 1032 flow [2024-11-07 23:39:57,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 184 transitions, 1028 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:39:57,620 INFO L231 Difference]: Finished difference. Result has 104 places, 148 transitions, 646 flow [2024-11-07 23:39:57,620 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=646, PETRI_PLACES=104, PETRI_TRANSITIONS=148} [2024-11-07 23:39:57,621 INFO L277 CegarLoopForPetriNet]: 105 programPoint places, -1 predicate places. [2024-11-07 23:39:57,621 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 148 transitions, 646 flow [2024-11-07 23:39:57,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 23:39:57,622 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:39:57,622 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:39:57,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 23:39:57,622 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-07 23:39:57,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:39:57,622 INFO L85 PathProgramCache]: Analyzing trace with hash -440361410, now seen corresponding path program 1 times [2024-11-07 23:39:57,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:39:57,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514536369] [2024-11-07 23:39:57,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:39:57,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:39:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:39:57,720 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 23:39:57,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:39:57,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514536369] [2024-11-07 23:39:57,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514536369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:39:57,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:39:57,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:39:57,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303142623] [2024-11-07 23:39:57,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:39:57,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:39:57,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:39:57,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:39:57,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:39:57,722 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 122 [2024-11-07 23:39:57,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 148 transitions, 646 flow. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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 23:39:57,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:39:57,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 122 [2024-11-07 23:39:57,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand