./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-commit-2.wvr.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-commit-2.wvr.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', 'ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81'] 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-commit-2.wvr.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 ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:39:46,041 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:39:46,138 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:39:46,143 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:39:46,144 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:39:46,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:39:46,159 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:39:46,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:39:46,160 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:39:46,160 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:39:46,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:39:46,160 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:39:46,160 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:39:46,160 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:39:46,160 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:39:46,160 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:39:46,161 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:39:46,161 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:39:46,161 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:39:46,161 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:39:46,161 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:39:46,161 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:39:46,161 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:39:46,161 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:39:46,161 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:39:46,161 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:39:46,161 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:39:46,161 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:39:46,162 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:39:46,162 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:39:46,162 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:39:46,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:39:46,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:39:46,162 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:39:46,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:39:46,162 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:39:46,162 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:39:46,162 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:39:46,162 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:39:46,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:39:46,163 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:39:46,163 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:39:46,163 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:39:46,163 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:39:46,163 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 -> ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 [2024-11-07 23:39:46,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:39:46,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:39:46,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:39:46,394 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:39:46,394 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:39:46,395 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2024-11-07 23:39:47,501 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:39:47,703 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:39:47,705 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2024-11-07 23:39:47,713 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4f759fdf5/d607cd87c4444391818532572ac2ee1f/FLAG197fa9ee2 [2024-11-07 23:39:48,057 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4f759fdf5/d607cd87c4444391818532572ac2ee1f [2024-11-07 23:39:48,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:39:48,059 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:39:48,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:39:48,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:39:48,062 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:39:48,063 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:39:48" (1/1) ... [2024-11-07 23:39:48,063 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@284fbdb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:48, skipping insertion in model container [2024-11-07 23:39:48,063 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:39:48" (1/1) ... [2024-11-07 23:39:48,078 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:39:48,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:39:48,203 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:39:48,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:39:48,236 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:39:48,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:48 WrapperNode [2024-11-07 23:39:48,237 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:39:48,238 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:39:48,238 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:39:48,238 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:39:48,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:48" (1/1) ... [2024-11-07 23:39:48,247 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:48" (1/1) ... [2024-11-07 23:39:48,281 INFO L138 Inliner]: procedures = 25, calls = 74, calls flagged for inlining = 28, calls inlined = 34, statements flattened = 495 [2024-11-07 23:39:48,281 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:39:48,282 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:39:48,282 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:39:48,282 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:39:48,288 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:48" (1/1) ... [2024-11-07 23:39:48,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:48" (1/1) ... [2024-11-07 23:39:48,291 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:48" (1/1) ... [2024-11-07 23:39:48,302 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 23:39:48,302 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:48" (1/1) ... [2024-11-07 23:39:48,302 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:48" (1/1) ... [2024-11-07 23:39:48,310 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:48" (1/1) ... [2024-11-07 23:39:48,315 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:48" (1/1) ... [2024-11-07 23:39:48,316 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:48" (1/1) ... [2024-11-07 23:39:48,318 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:48" (1/1) ... [2024-11-07 23:39:48,321 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:39:48,322 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:39:48,326 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:39:48,326 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:39:48,327 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:48" (1/1) ... [2024-11-07 23:39:48,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:39:48,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:39:48,352 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 23:39:48,354 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 23:39:48,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:39:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 23:39:48,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 23:39:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 23:39:48,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 23:39:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-07 23:39:48,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-07 23:39:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-07 23:39:48,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-07 23:39:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:39:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 23:39:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 23:39:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 23:39:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-07 23:39:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-07 23:39:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 23:39:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:39:48,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:39:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 23:39:48,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 23:39:48,373 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 23:39:48,477 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:39:48,478 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:39:48,965 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:39:48,965 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:39:49,361 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:39:49,361 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-07 23:39:49,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:39:49 BoogieIcfgContainer [2024-11-07 23:39:49,361 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:39:49,363 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:39:49,363 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:39:49,366 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:39:49,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:39:48" (1/3) ... [2024-11-07 23:39:49,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579740ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:39:49, skipping insertion in model container [2024-11-07 23:39:49,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:39:48" (2/3) ... [2024-11-07 23:39:49,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579740ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:39:49, skipping insertion in model container [2024-11-07 23:39:49,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:39:49" (3/3) ... [2024-11-07 23:39:49,368 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-commit-2.wvr.c [2024-11-07 23:39:49,378 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:39:49,378 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2024-11-07 23:39:49,378 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:39:49,491 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-07 23:39:49,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 102 transitions, 232 flow [2024-11-07 23:39:49,562 INFO L124 PetriNetUnfolderBase]: 12/98 cut-off events. [2024-11-07 23:39:49,564 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-07 23:39:49,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 98 events. 12/98 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 323 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 85. Up to 2 conditions per place. [2024-11-07 23:39:49,568 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 102 transitions, 232 flow [2024-11-07 23:39:49,572 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 96 transitions, 213 flow [2024-11-07 23:39:49,577 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:39:49,589 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;@aaf1395, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:39:49,589 INFO L334 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2024-11-07 23:39:49,592 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:39:49,594 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-07 23:39:49,594 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:39:49,594 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:39:49,594 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-07 23:39:49,595 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 23:39:49,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:39:49,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1463321, now seen corresponding path program 1 times [2024-11-07 23:39:49,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:39:49,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149019980] [2024-11-07 23:39:49,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:39:49,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:39:49,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:39:49,811 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 23:39:49,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:39:49,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149019980] [2024-11-07 23:39:49,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149019980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:39:49,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:39:49,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:39:49,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996921841] [2024-11-07 23:39:49,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:39:49,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:39:49,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:39:49,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:39:49,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:39:49,880 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 102 [2024-11-07 23:39:49,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 96 transitions, 213 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 23:39:49,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:39:49,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 102 [2024-11-07 23:39:49,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:39:57,825 INFO L124 PetriNetUnfolderBase]: 97620/126352 cut-off events. [2024-11-07 23:39:57,825 INFO L125 PetriNetUnfolderBase]: For 3678/3678 co-relation queries the response was YES. [2024-11-07 23:39:58,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256534 conditions, 126352 events. 97620/126352 cut-off events. For 3678/3678 co-relation queries the response was YES. Maximal size of possible extension queue 3852. Compared 730912 event pairs, 86802 based on Foata normal form. 4/87316 useless extension candidates. Maximal degree in co-relation 249277. Up to 126251 conditions per place. [2024-11-07 23:39:58,693 INFO L140 encePairwiseOnDemand]: 65/102 looper letters, 71 selfloop transitions, 13 changer transitions 0/92 dead transitions. [2024-11-07 23:39:58,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 92 transitions, 373 flow [2024-11-07 23:39:58,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:39:58,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:39:58,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 156 transitions. [2024-11-07 23:39:58,703 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38235294117647056 [2024-11-07 23:39:58,704 INFO L175 Difference]: Start difference. First operand has 97 places, 96 transitions, 213 flow. Second operand 4 states and 156 transitions. [2024-11-07 23:39:58,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 92 transitions, 373 flow [2024-11-07 23:39:58,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 92 transitions, 360 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-07 23:39:58,852 INFO L231 Difference]: Finished difference. Result has 84 places, 92 transitions, 284 flow [2024-11-07 23:39:58,854 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=284, PETRI_PLACES=84, PETRI_TRANSITIONS=92} [2024-11-07 23:39:58,856 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, -13 predicate places. [2024-11-07 23:39:58,857 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 92 transitions, 284 flow [2024-11-07 23:39:58,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 23:39:58,857 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:39:58,857 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-07 23:39:58,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 23:39:58,858 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 23:39:58,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:39:58,859 INFO L85 PathProgramCache]: Analyzing trace with hash 645593960, now seen corresponding path program 1 times [2024-11-07 23:39:58,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:39:58,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734928757] [2024-11-07 23:39:58,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:39:58,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:39:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:39:58,994 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 23:39:58,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:39:58,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734928757] [2024-11-07 23:39:58,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734928757] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:39:58,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688052833] [2024-11-07 23:39:58,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:39:58,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:39:58,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:39:58,998 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 23:39:58,999 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 23:39:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:39:59,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:39:59,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:39:59,130 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 23:39:59,131 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:39:59,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688052833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:39:59,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:39:59,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-07 23:39:59,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390580139] [2024-11-07 23:39:59,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:39:59,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:39:59,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:39:59,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:39:59,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:39:59,162 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 102 [2024-11-07 23:39:59,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 92 transitions, 284 flow. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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 23:39:59,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:39:59,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 102 [2024-11-07 23:39:59,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:40:06,755 INFO L124 PetriNetUnfolderBase]: 97620/126348 cut-off events. [2024-11-07 23:40:06,755 INFO L125 PetriNetUnfolderBase]: For 692/692 co-relation queries the response was YES. [2024-11-07 23:40:06,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 255577 conditions, 126348 events. 97620/126348 cut-off events. For 692/692 co-relation queries the response was YES. Maximal size of possible extension queue 3852. Compared 730698 event pairs, 86802 based on Foata normal form. 4/87319 useless extension candidates. Maximal degree in co-relation 255481. Up to 126231 conditions per place. [2024-11-07 23:40:07,300 INFO L140 encePairwiseOnDemand]: 85/102 looper letters, 58 selfloop transitions, 22 changer transitions 0/88 dead transitions. [2024-11-07 23:40:07,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 88 transitions, 428 flow [2024-11-07 23:40:07,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:40:07,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:40:07,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 156 transitions. [2024-11-07 23:40:07,305 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2549019607843137 [2024-11-07 23:40:07,305 INFO L175 Difference]: Start difference. First operand has 84 places, 92 transitions, 284 flow. Second operand 6 states and 156 transitions. [2024-11-07 23:40:07,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 88 transitions, 428 flow [2024-11-07 23:40:07,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 88 transitions, 428 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:40:07,308 INFO L231 Difference]: Finished difference. Result has 85 places, 88 transitions, 312 flow [2024-11-07 23:40:07,308 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=312, PETRI_PLACES=85, PETRI_TRANSITIONS=88} [2024-11-07 23:40:07,309 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, -12 predicate places. [2024-11-07 23:40:07,310 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 88 transitions, 312 flow [2024-11-07 23:40:07,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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 23:40:07,310 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:40:07,310 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-07 23:40:07,323 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 23:40:07,510 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 23:40:07,511 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 23:40:07,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:40:07,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1461422240, now seen corresponding path program 1 times [2024-11-07 23:40:07,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:40:07,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324881398] [2024-11-07 23:40:07,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:40:07,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:40:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:40:07,605 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 23:40:07,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:40:07,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324881398] [2024-11-07 23:40:07,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324881398] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:40:07,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561616506] [2024-11-07 23:40:07,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:40:07,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:40:07,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:40:07,608 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 23:40:07,609 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 23:40:07,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:40:07,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:40:07,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:40:07,708 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 23:40:07,709 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:40:07,739 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 23:40:07,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561616506] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:40:07,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:40:07,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-07 23:40:07,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220365950] [2024-11-07 23:40:07,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:40:07,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 23:40:07,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:40:07,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 23:40:07,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:40:07,789 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 102 [2024-11-07 23:40:07,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 88 transitions, 312 flow. Second operand has 12 states, 12 states have (on average 13.083333333333334) internal successors, (157), 12 states have internal predecessors, (157), 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 23:40:07,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:40:07,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 102 [2024-11-07 23:40:07,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand