./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-file-item-trans.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/chl-file-item-trans.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', '408d8d7e58240f749ab11087191b04ec647cfea8447827b0505b793eb68a9c0a'] 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/chl-file-item-trans.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 408d8d7e58240f749ab11087191b04ec647cfea8447827b0505b793eb68a9c0a --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:36:26,347 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:36:26,442 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:36:26,447 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:36:26,448 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:36:26,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:36:26,475 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:36:26,475 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:36:26,476 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:36:26,476 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:36:26,477 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:36:26,477 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:36:26,477 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:36:26,477 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:36:26,478 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:36:26,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:36:26,479 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:36:26,479 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:36:26,479 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:36:26,479 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:36:26,479 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:36:26,479 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:36:26,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:36:26,479 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:36:26,479 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:36:26,480 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:36:26,480 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:36:26,480 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:36:26,480 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:36:26,480 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:36:26,480 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:36:26,481 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:36:26,481 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:36:26,481 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:36:26,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:36:26,481 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:36:26,481 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:36:26,482 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:36:26,482 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:36:26,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:36:26,482 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:36:26,482 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:36:26,482 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:36:26,482 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:36:26,483 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 -> 408d8d7e58240f749ab11087191b04ec647cfea8447827b0505b793eb68a9c0a [2024-11-07 23:36:26,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:36:26,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:36:26,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:36:26,765 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:36:26,765 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:36:26,766 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c [2024-11-07 23:36:28,027 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:36:28,239 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:36:28,240 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c [2024-11-07 23:36:28,246 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1b85116c3/15892a2908d94f97951576e6211eaadb/FLAGa2d6c1be7 [2024-11-07 23:36:28,267 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1b85116c3/15892a2908d94f97951576e6211eaadb [2024-11-07 23:36:28,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:36:28,271 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:36:28,272 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:36:28,272 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:36:28,276 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:36:28,277 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:36:28" (1/1) ... [2024-11-07 23:36:28,277 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47c73c11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:28, skipping insertion in model container [2024-11-07 23:36:28,278 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:36:28" (1/1) ... [2024-11-07 23:36:28,291 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:36:28,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:36:28,435 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:36:28,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:36:28,470 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:36:28,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:28 WrapperNode [2024-11-07 23:36:28,471 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:36:28,472 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:36:28,473 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:36:28,473 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:36:28,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:28" (1/1) ... [2024-11-07 23:36:28,485 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:28" (1/1) ... [2024-11-07 23:36:28,513 INFO L138 Inliner]: procedures = 22, calls = 16, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 236 [2024-11-07 23:36:28,514 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:36:28,514 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:36:28,514 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:36:28,514 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:36:28,522 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:28" (1/1) ... [2024-11-07 23:36:28,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:28" (1/1) ... [2024-11-07 23:36:28,529 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:28" (1/1) ... [2024-11-07 23:36:28,554 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 23:36:28,557 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:28" (1/1) ... [2024-11-07 23:36:28,557 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:28" (1/1) ... [2024-11-07 23:36:28,567 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:28" (1/1) ... [2024-11-07 23:36:28,575 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:28" (1/1) ... [2024-11-07 23:36:28,582 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:28" (1/1) ... [2024-11-07 23:36:28,583 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:28" (1/1) ... [2024-11-07 23:36:28,588 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:36:28,589 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:36:28,589 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:36:28,589 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:36:28,590 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:28" (1/1) ... [2024-11-07 23:36:28,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:36:28,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:36:28,634 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 23:36:28,641 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 23:36:28,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:36:28,664 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 23:36:28,665 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 23:36:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 23:36:28,665 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 23:36:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-07 23:36:28,665 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-07 23:36:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:36:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:36:28,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:36:28,666 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 23:36:28,793 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:36:28,795 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:36:29,197 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:36:29,198 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:36:29,481 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:36:29,482 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 23:36:29,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:36:29 BoogieIcfgContainer [2024-11-07 23:36:29,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:36:29,485 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:36:29,485 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:36:29,489 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:36:29,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:36:28" (1/3) ... [2024-11-07 23:36:29,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627c2836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:36:29, skipping insertion in model container [2024-11-07 23:36:29,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:28" (2/3) ... [2024-11-07 23:36:29,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627c2836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:36:29, skipping insertion in model container [2024-11-07 23:36:29,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:36:29" (3/3) ... [2024-11-07 23:36:29,492 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-trans.wvr.c [2024-11-07 23:36:29,505 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:36:29,506 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-07 23:36:29,506 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:36:29,622 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-07 23:36:29,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 107 transitions, 235 flow [2024-11-07 23:36:29,715 INFO L124 PetriNetUnfolderBase]: 18/104 cut-off events. [2024-11-07 23:36:29,719 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-07 23:36:29,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 104 events. 18/104 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 387 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2024-11-07 23:36:29,724 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 107 transitions, 235 flow [2024-11-07 23:36:29,728 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 102 transitions, 219 flow [2024-11-07 23:36:29,737 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:36:29,749 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;@5384cb03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:36:29,752 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-07 23:36:29,766 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:36:29,766 INFO L124 PetriNetUnfolderBase]: 7/43 cut-off events. [2024-11-07 23:36:29,766 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 23:36:29,768 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:29,769 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:29,769 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-07 23:36:29,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:29,772 INFO L85 PathProgramCache]: Analyzing trace with hash -442347577, now seen corresponding path program 1 times [2024-11-07 23:36:29,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:29,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287927779] [2024-11-07 23:36:29,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:29,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:30,088 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 23:36:30,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:30,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287927779] [2024-11-07 23:36:30,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287927779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:30,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:30,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:36:30,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705474509] [2024-11-07 23:36:30,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:30,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:36:30,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:30,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:36:30,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:36:30,170 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2024-11-07 23:36:30,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 102 transitions, 219 flow. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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 23:36:30,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:30,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2024-11-07 23:36:30,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:32,646 INFO L124 PetriNetUnfolderBase]: 14059/22486 cut-off events. [2024-11-07 23:36:32,646 INFO L125 PetriNetUnfolderBase]: For 330/330 co-relation queries the response was YES. [2024-11-07 23:36:32,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41488 conditions, 22486 events. 14059/22486 cut-off events. For 330/330 co-relation queries the response was YES. Maximal size of possible extension queue 1406. Compared 186337 event pairs, 5420 based on Foata normal form. 532/18838 useless extension candidates. Maximal degree in co-relation 40483. Up to 10138 conditions per place. [2024-11-07 23:36:32,972 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 100 selfloop transitions, 5 changer transitions 0/159 dead transitions. [2024-11-07 23:36:32,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 159 transitions, 555 flow [2024-11-07 23:36:32,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:36:32,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:36:32,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 336 transitions. [2024-11-07 23:36:33,005 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7850467289719626 [2024-11-07 23:36:33,007 INFO L175 Difference]: Start difference. First operand has 94 places, 102 transitions, 219 flow. Second operand 4 states and 336 transitions. [2024-11-07 23:36:33,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 159 transitions, 555 flow [2024-11-07 23:36:33,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 159 transitions, 540 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-07 23:36:33,115 INFO L231 Difference]: Finished difference. Result has 94 places, 104 transitions, 244 flow [2024-11-07 23:36:33,118 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=244, PETRI_PLACES=94, PETRI_TRANSITIONS=104} [2024-11-07 23:36:33,131 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 0 predicate places. [2024-11-07 23:36:33,136 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 104 transitions, 244 flow [2024-11-07 23:36:33,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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 23:36:33,137 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:33,137 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:33,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 23:36:33,138 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-07 23:36:33,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:33,138 INFO L85 PathProgramCache]: Analyzing trace with hash -827872212, now seen corresponding path program 1 times [2024-11-07 23:36:33,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:33,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099624126] [2024-11-07 23:36:33,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:33,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:33,334 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 23:36:33,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:33,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099624126] [2024-11-07 23:36:33,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099624126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:33,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:33,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:36:33,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065024144] [2024-11-07 23:36:33,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:33,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:36:33,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:33,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:36:33,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:36:33,362 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 107 [2024-11-07 23:36:33,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 104 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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 23:36:33,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:33,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 107 [2024-11-07 23:36:33,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:35,026 INFO L124 PetriNetUnfolderBase]: 10585/19081 cut-off events. [2024-11-07 23:36:35,027 INFO L125 PetriNetUnfolderBase]: For 3423/3445 co-relation queries the response was YES. [2024-11-07 23:36:35,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36848 conditions, 19081 events. 10585/19081 cut-off events. For 3423/3445 co-relation queries the response was YES. Maximal size of possible extension queue 1217. Compared 175600 event pairs, 3367 based on Foata normal form. 22/16420 useless extension candidates. Maximal degree in co-relation 21643. Up to 7399 conditions per place. [2024-11-07 23:36:35,192 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 68 selfloop transitions, 4 changer transitions 0/130 dead transitions. [2024-11-07 23:36:35,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 130 transitions, 443 flow [2024-11-07 23:36:35,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:36:35,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:36:35,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 311 transitions. [2024-11-07 23:36:35,197 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7266355140186916 [2024-11-07 23:36:35,198 INFO L175 Difference]: Start difference. First operand has 94 places, 104 transitions, 244 flow. Second operand 4 states and 311 transitions. [2024-11-07 23:36:35,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 130 transitions, 443 flow [2024-11-07 23:36:35,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 130 transitions, 443 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:36:35,273 INFO L231 Difference]: Finished difference. Result has 96 places, 103 transitions, 250 flow [2024-11-07 23:36:35,273 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=96, PETRI_TRANSITIONS=103} [2024-11-07 23:36:35,274 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 2 predicate places. [2024-11-07 23:36:35,274 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 103 transitions, 250 flow [2024-11-07 23:36:35,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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 23:36:35,275 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:35,275 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:35,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 23:36:35,275 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-07 23:36:35,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:35,277 INFO L85 PathProgramCache]: Analyzing trace with hash 829868616, now seen corresponding path program 1 times [2024-11-07 23:36:35,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:35,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562430269] [2024-11-07 23:36:35,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:35,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:35,423 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 23:36:35,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:35,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562430269] [2024-11-07 23:36:35,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562430269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:35,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:35,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:36:35,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144032205] [2024-11-07 23:36:35,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:35,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:36:35,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:35,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:36:35,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:36:35,453 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 107 [2024-11-07 23:36:35,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 103 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 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 23:36:35,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:35,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 107 [2024-11-07 23:36:35,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:36,950 INFO L124 PetriNetUnfolderBase]: 10457/18631 cut-off events. [2024-11-07 23:36:36,951 INFO L125 PetriNetUnfolderBase]: For 5307/5822 co-relation queries the response was YES. [2024-11-07 23:36:37,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35999 conditions, 18631 events. 10457/18631 cut-off events. For 5307/5822 co-relation queries the response was YES. Maximal size of possible extension queue 1205. Compared 169445 event pairs, 3897 based on Foata normal form. 904/15982 useless extension candidates. Maximal degree in co-relation 22400. Up to 6904 conditions per place. [2024-11-07 23:36:37,101 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 71 selfloop transitions, 3 changer transitions 0/129 dead transitions. [2024-11-07 23:36:37,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 129 transitions, 477 flow [2024-11-07 23:36:37,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:36:37,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:36:37,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 308 transitions. [2024-11-07 23:36:37,105 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.719626168224299 [2024-11-07 23:36:37,105 INFO L175 Difference]: Start difference. First operand has 96 places, 103 transitions, 250 flow. Second operand 4 states and 308 transitions. [2024-11-07 23:36:37,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 129 transitions, 477 flow [2024-11-07 23:36:37,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 129 transitions, 463 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:36:37,138 INFO L231 Difference]: Finished difference. Result has 94 places, 101 transitions, 244 flow [2024-11-07 23:36:37,138 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=244, PETRI_PLACES=94, PETRI_TRANSITIONS=101} [2024-11-07 23:36:37,139 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 0 predicate places. [2024-11-07 23:36:37,139 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 101 transitions, 244 flow [2024-11-07 23:36:37,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 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 23:36:37,141 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:37,141 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:37,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 23:36:37,142 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-07 23:36:37,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:37,142 INFO L85 PathProgramCache]: Analyzing trace with hash 105734219, now seen corresponding path program 1 times [2024-11-07 23:36:37,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:37,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813298308] [2024-11-07 23:36:37,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:37,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:37,268 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 23:36:37,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:37,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813298308] [2024-11-07 23:36:37,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813298308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:37,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:37,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:36:37,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338372959] [2024-11-07 23:36:37,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:37,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:36:37,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:37,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:36:37,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:36:37,293 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 107 [2024-11-07 23:36:37,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 101 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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 23:36:37,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:37,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 107 [2024-11-07 23:36:37,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:38,581 INFO L124 PetriNetUnfolderBase]: 10607/18849 cut-off events. [2024-11-07 23:36:38,582 INFO L125 PetriNetUnfolderBase]: For 4869/4891 co-relation queries the response was YES. [2024-11-07 23:36:38,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37310 conditions, 18849 events. 10607/18849 cut-off events. For 4869/4891 co-relation queries the response was YES. Maximal size of possible extension queue 1200. Compared 170676 event pairs, 3367 based on Foata normal form. 288/16759 useless extension candidates. Maximal degree in co-relation 22064. Up to 7665 conditions per place. [2024-11-07 23:36:38,754 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 69 selfloop transitions, 4 changer transitions 0/127 dead transitions. [2024-11-07 23:36:38,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 127 transitions, 447 flow [2024-11-07 23:36:38,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:36:38,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:36:38,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 307 transitions. [2024-11-07 23:36:38,757 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7172897196261683 [2024-11-07 23:36:38,757 INFO L175 Difference]: Start difference. First operand has 94 places, 101 transitions, 244 flow. Second operand 4 states and 307 transitions. [2024-11-07 23:36:38,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 127 transitions, 447 flow [2024-11-07 23:36:38,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 127 transitions, 437 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:36:38,831 INFO L231 Difference]: Finished difference. Result has 93 places, 100 transitions, 242 flow [2024-11-07 23:36:38,832 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=93, PETRI_TRANSITIONS=100} [2024-11-07 23:36:38,834 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, -1 predicate places. [2024-11-07 23:36:38,835 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 100 transitions, 242 flow [2024-11-07 23:36:38,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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 23:36:38,835 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:38,835 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:38,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 23:36:38,835 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-07 23:36:38,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:38,836 INFO L85 PathProgramCache]: Analyzing trace with hash -43875862, now seen corresponding path program 1 times [2024-11-07 23:36:38,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:38,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782547761] [2024-11-07 23:36:38,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:38,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:38,963 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 23:36:38,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:38,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782547761] [2024-11-07 23:36:38,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782547761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:38,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:38,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:36:38,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115197540] [2024-11-07 23:36:38,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:38,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:36:38,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:38,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:36:38,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:36:38,983 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 107 [2024-11-07 23:36:38,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 100 transitions, 242 flow. Second operand has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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 23:36:38,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:38,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 107 [2024-11-07 23:36:38,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:39,915 INFO L124 PetriNetUnfolderBase]: 8675/16503 cut-off events. [2024-11-07 23:36:39,916 INFO L125 PetriNetUnfolderBase]: For 4325/4535 co-relation queries the response was YES. [2024-11-07 23:36:39,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30814 conditions, 16503 events. 8675/16503 cut-off events. For 4325/4535 co-relation queries the response was YES. Maximal size of possible extension queue 1063. Compared 156432 event pairs, 3853 based on Foata normal form. 210/13860 useless extension candidates. Maximal degree in co-relation 19157. Up to 6904 conditions per place. [2024-11-07 23:36:40,034 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 69 selfloop transitions, 3 changer transitions 0/127 dead transitions. [2024-11-07 23:36:40,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 127 transitions, 467 flow [2024-11-07 23:36:40,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:36:40,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:36:40,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 309 transitions. [2024-11-07 23:36:40,036 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7219626168224299 [2024-11-07 23:36:40,036 INFO L175 Difference]: Start difference. First operand has 93 places, 100 transitions, 242 flow. Second operand 4 states and 309 transitions. [2024-11-07 23:36:40,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 127 transitions, 467 flow [2024-11-07 23:36:40,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 127 transitions, 453 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:36:40,065 INFO L231 Difference]: Finished difference. Result has 92 places, 99 transitions, 238 flow [2024-11-07 23:36:40,065 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=238, PETRI_PLACES=92, PETRI_TRANSITIONS=99} [2024-11-07 23:36:40,066 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, -2 predicate places. [2024-11-07 23:36:40,066 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 99 transitions, 238 flow [2024-11-07 23:36:40,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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 23:36:40,066 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:40,066 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:40,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 23:36:40,067 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-07 23:36:40,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:40,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1017206738, now seen corresponding path program 1 times [2024-11-07 23:36:40,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:40,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891098601] [2024-11-07 23:36:40,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:40,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:40,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:40,160 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 23:36:40,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:40,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891098601] [2024-11-07 23:36:40,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891098601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:40,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:40,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:36:40,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756084797] [2024-11-07 23:36:40,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:40,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:36:40,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:40,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:36:40,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:36:40,189 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 107 [2024-11-07 23:36:40,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 99 transitions, 238 flow. Second operand has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 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 23:36:40,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:40,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 107 [2024-11-07 23:36:40,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:41,263 INFO L124 PetriNetUnfolderBase]: 14252/22265 cut-off events. [2024-11-07 23:36:41,263 INFO L125 PetriNetUnfolderBase]: For 2755/2755 co-relation queries the response was YES. [2024-11-07 23:36:41,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45808 conditions, 22265 events. 14252/22265 cut-off events. For 2755/2755 co-relation queries the response was YES. Maximal size of possible extension queue 1392. Compared 180620 event pairs, 3279 based on Foata normal form. 0/20221 useless extension candidates. Maximal degree in co-relation 27416. Up to 9347 conditions per place. [2024-11-07 23:36:41,396 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 96 selfloop transitions, 6 changer transitions 0/152 dead transitions. [2024-11-07 23:36:41,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 152 transitions, 562 flow [2024-11-07 23:36:41,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:36:41,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:36:41,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 392 transitions. [2024-11-07 23:36:41,397 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7327102803738318 [2024-11-07 23:36:41,397 INFO L175 Difference]: Start difference. First operand has 92 places, 99 transitions, 238 flow. Second operand 5 states and 392 transitions. [2024-11-07 23:36:41,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 152 transitions, 562 flow [2024-11-07 23:36:41,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 152 transitions, 548 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:36:41,452 INFO L231 Difference]: Finished difference. Result has 92 places, 98 transitions, 242 flow [2024-11-07 23:36:41,452 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=242, PETRI_PLACES=92, PETRI_TRANSITIONS=98} [2024-11-07 23:36:41,452 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, -2 predicate places. [2024-11-07 23:36:41,453 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 98 transitions, 242 flow [2024-11-07 23:36:41,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 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 23:36:41,453 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:41,453 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:41,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 23:36:41,453 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-07 23:36:41,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:41,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1017205713, now seen corresponding path program 1 times [2024-11-07 23:36:41,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:41,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374786914] [2024-11-07 23:36:41,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:41,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:41,525 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 23:36:41,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:41,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374786914] [2024-11-07 23:36:41,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374786914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:41,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:41,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:36:41,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384568082] [2024-11-07 23:36:41,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:41,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:36:41,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:41,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:36:41,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:36:41,550 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2024-11-07 23:36:41,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 98 transitions, 242 flow. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 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 23:36:41,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:41,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2024-11-07 23:36:41,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:42,434 INFO L124 PetriNetUnfolderBase]: 11720/19787 cut-off events. [2024-11-07 23:36:42,435 INFO L125 PetriNetUnfolderBase]: For 6303/6303 co-relation queries the response was YES. [2024-11-07 23:36:42,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40012 conditions, 19787 events. 11720/19787 cut-off events. For 6303/6303 co-relation queries the response was YES. Maximal size of possible extension queue 1239. Compared 172073 event pairs, 5591 based on Foata normal form. 266/17417 useless extension candidates. Maximal degree in co-relation 23802. Up to 10172 conditions per place. [2024-11-07 23:36:42,541 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 98 selfloop transitions, 4 changer transitions 0/152 dead transitions. [2024-11-07 23:36:42,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 152 transitions, 556 flow [2024-11-07 23:36:42,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:36:42,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:36:42,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2024-11-07 23:36:42,543 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7733644859813084 [2024-11-07 23:36:42,543 INFO L175 Difference]: Start difference. First operand has 92 places, 98 transitions, 242 flow. Second operand 4 states and 331 transitions. [2024-11-07 23:36:42,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 152 transitions, 556 flow [2024-11-07 23:36:42,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 152 transitions, 544 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 23:36:42,581 INFO L231 Difference]: Finished difference. Result has 91 places, 97 transitions, 232 flow [2024-11-07 23:36:42,581 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=232, PETRI_PLACES=91, PETRI_TRANSITIONS=97} [2024-11-07 23:36:42,582 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, -3 predicate places. [2024-11-07 23:36:42,582 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 97 transitions, 232 flow [2024-11-07 23:36:42,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 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 23:36:42,582 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:42,582 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:42,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 23:36:42,582 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-07 23:36:42,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:42,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1846275519, now seen corresponding path program 1 times [2024-11-07 23:36:42,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:42,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99251057] [2024-11-07 23:36:42,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:42,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:42,649 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 23:36:42,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:42,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99251057] [2024-11-07 23:36:42,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99251057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:42,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:42,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:36:42,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83301987] [2024-11-07 23:36:42,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:42,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:36:42,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:42,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:36:42,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:36:42,672 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2024-11-07 23:36:42,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 97 transitions, 232 flow. Second operand has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 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 23:36:42,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:42,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2024-11-07 23:36:42,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:44,138 INFO L124 PetriNetUnfolderBase]: 16574/26850 cut-off events. [2024-11-07 23:36:44,138 INFO L125 PetriNetUnfolderBase]: For 7087/7493 co-relation queries the response was YES. [2024-11-07 23:36:44,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53647 conditions, 26850 events. 16574/26850 cut-off events. For 7087/7493 co-relation queries the response was YES. Maximal size of possible extension queue 1576. Compared 231695 event pairs, 6768 based on Foata normal form. 1002/23709 useless extension candidates. Maximal degree in co-relation 33520. Up to 12388 conditions per place. [2024-11-07 23:36:44,308 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 102 selfloop transitions, 5 changer transitions 0/154 dead transitions. [2024-11-07 23:36:44,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 154 transitions, 610 flow [2024-11-07 23:36:44,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:36:44,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:36:44,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 332 transitions. [2024-11-07 23:36:44,310 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7757009345794392 [2024-11-07 23:36:44,310 INFO L175 Difference]: Start difference. First operand has 91 places, 97 transitions, 232 flow. Second operand 4 states and 332 transitions. [2024-11-07 23:36:44,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 154 transitions, 610 flow [2024-11-07 23:36:44,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 154 transitions, 594 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:36:44,341 INFO L231 Difference]: Finished difference. Result has 94 places, 99 transitions, 260 flow [2024-11-07 23:36:44,341 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=260, PETRI_PLACES=94, PETRI_TRANSITIONS=99} [2024-11-07 23:36:44,342 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 0 predicate places. [2024-11-07 23:36:44,342 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 99 transitions, 260 flow [2024-11-07 23:36:44,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 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 23:36:44,342 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:44,342 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:44,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 23:36:44,342 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-07 23:36:44,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:44,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1468637010, now seen corresponding path program 1 times [2024-11-07 23:36:44,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:44,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109050232] [2024-11-07 23:36:44,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:44,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:44,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:44,441 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 23:36:44,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:44,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109050232] [2024-11-07 23:36:44,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109050232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:44,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:44,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:36:44,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960620010] [2024-11-07 23:36:44,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:44,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:36:44,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:44,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:36:44,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 23:36:44,489 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2024-11-07 23:36:44,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 99 transitions, 260 flow. Second operand has 6 states, 6 states have (on average 56.166666666666664) internal successors, (337), 6 states have internal predecessors, (337), 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 23:36:44,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:44,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2024-11-07 23:36:44,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:45,697 INFO L124 PetriNetUnfolderBase]: 16506/26289 cut-off events. [2024-11-07 23:36:45,697 INFO L125 PetriNetUnfolderBase]: For 8983/9543 co-relation queries the response was YES. [2024-11-07 23:36:45,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56390 conditions, 26289 events. 16506/26289 cut-off events. For 8983/9543 co-relation queries the response was YES. Maximal size of possible extension queue 1603. Compared 223290 event pairs, 4053 based on Foata normal form. 914/24794 useless extension candidates. Maximal degree in co-relation 36765. Up to 7565 conditions per place. [2024-11-07 23:36:45,856 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 128 selfloop transitions, 9 changer transitions 0/186 dead transitions. [2024-11-07 23:36:45,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 186 transitions, 771 flow [2024-11-07 23:36:45,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:36:45,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:36:45,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 458 transitions. [2024-11-07 23:36:45,858 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7133956386292835 [2024-11-07 23:36:45,858 INFO L175 Difference]: Start difference. First operand has 94 places, 99 transitions, 260 flow. Second operand 6 states and 458 transitions. [2024-11-07 23:36:45,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 186 transitions, 771 flow [2024-11-07 23:36:45,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 186 transitions, 771 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:36:45,945 INFO L231 Difference]: Finished difference. Result has 99 places, 99 transitions, 285 flow [2024-11-07 23:36:45,945 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=285, PETRI_PLACES=99, PETRI_TRANSITIONS=99} [2024-11-07 23:36:45,946 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 5 predicate places. [2024-11-07 23:36:45,946 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 99 transitions, 285 flow [2024-11-07 23:36:45,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.166666666666664) internal successors, (337), 6 states have internal predecessors, (337), 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 23:36:45,946 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:45,947 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:45,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 23:36:45,947 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-07 23:36:45,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:45,947 INFO L85 PathProgramCache]: Analyzing trace with hash 784010829, now seen corresponding path program 1 times [2024-11-07 23:36:45,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:45,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931556858] [2024-11-07 23:36:45,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:45,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:45,994 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 23:36:45,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:45,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931556858] [2024-11-07 23:36:45,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931556858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:45,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:45,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:36:45,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126948752] [2024-11-07 23:36:45,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:45,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:36:45,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:45,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:36:45,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:36:46,013 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2024-11-07 23:36:46,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 99 transitions, 285 flow. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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 23:36:46,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:46,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2024-11-07 23:36:46,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:47,379 INFO L124 PetriNetUnfolderBase]: 16748/30640 cut-off events. [2024-11-07 23:36:47,379 INFO L125 PetriNetUnfolderBase]: For 21678/23450 co-relation queries the response was YES. [2024-11-07 23:36:47,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65304 conditions, 30640 events. 16748/30640 cut-off events. For 21678/23450 co-relation queries the response was YES. Maximal size of possible extension queue 1732. Compared 301715 event pairs, 8142 based on Foata normal form. 1343/27479 useless extension candidates. Maximal degree in co-relation 42967. Up to 14288 conditions per place. [2024-11-07 23:36:47,575 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 111 selfloop transitions, 5 changer transitions 0/165 dead transitions. [2024-11-07 23:36:47,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 165 transitions, 761 flow [2024-11-07 23:36:47,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:36:47,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:36:47,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 330 transitions. [2024-11-07 23:36:47,576 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7710280373831776 [2024-11-07 23:36:47,576 INFO L175 Difference]: Start difference. First operand has 99 places, 99 transitions, 285 flow. Second operand 4 states and 330 transitions. [2024-11-07 23:36:47,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 165 transitions, 761 flow [2024-11-07 23:36:47,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 165 transitions, 730 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 23:36:47,654 INFO L231 Difference]: Finished difference. Result has 100 places, 101 transitions, 299 flow [2024-11-07 23:36:47,654 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=299, PETRI_PLACES=100, PETRI_TRANSITIONS=101} [2024-11-07 23:36:47,655 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 6 predicate places. [2024-11-07 23:36:47,655 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 101 transitions, 299 flow [2024-11-07 23:36:47,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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 23:36:47,655 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:47,655 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:47,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 23:36:47,655 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-07 23:36:47,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:47,655 INFO L85 PathProgramCache]: Analyzing trace with hash 784009804, now seen corresponding path program 1 times [2024-11-07 23:36:47,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:47,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452441979] [2024-11-07 23:36:47,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:47,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:47,739 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 23:36:47,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:47,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452441979] [2024-11-07 23:36:47,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452441979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:47,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:47,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:36:47,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862855746] [2024-11-07 23:36:47,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:47,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:36:47,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:47,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:36:47,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:36:47,771 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 107 [2024-11-07 23:36:47,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 101 transitions, 299 flow. Second operand has 5 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 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 23:36:47,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:47,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 107 [2024-11-07 23:36:47,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:49,236 INFO L124 PetriNetUnfolderBase]: 19838/32347 cut-off events. [2024-11-07 23:36:49,236 INFO L125 PetriNetUnfolderBase]: For 20977/23393 co-relation queries the response was YES. [2024-11-07 23:36:49,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75091 conditions, 32347 events. 19838/32347 cut-off events. For 20977/23393 co-relation queries the response was YES. Maximal size of possible extension queue 1879. Compared 286742 event pairs, 4725 based on Foata normal form. 1724/31881 useless extension candidates. Maximal degree in co-relation 50276. Up to 13444 conditions per place. [2024-11-07 23:36:49,478 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 110 selfloop transitions, 6 changer transitions 0/163 dead transitions. [2024-11-07 23:36:49,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 163 transitions, 749 flow [2024-11-07 23:36:49,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:36:49,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:36:49,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 390 transitions. [2024-11-07 23:36:49,480 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7289719626168224 [2024-11-07 23:36:49,480 INFO L175 Difference]: Start difference. First operand has 100 places, 101 transitions, 299 flow. Second operand 5 states and 390 transitions. [2024-11-07 23:36:49,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 163 transitions, 749 flow [2024-11-07 23:36:49,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 163 transitions, 746 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:36:49,658 INFO L231 Difference]: Finished difference. Result has 103 places, 101 transitions, 313 flow [2024-11-07 23:36:49,658 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=313, PETRI_PLACES=103, PETRI_TRANSITIONS=101} [2024-11-07 23:36:49,659 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 9 predicate places. [2024-11-07 23:36:49,659 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 101 transitions, 313 flow [2024-11-07 23:36:49,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 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 23:36:49,659 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:49,659 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:49,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 23:36:49,660 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-07 23:36:49,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:49,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1399967090, now seen corresponding path program 1 times [2024-11-07 23:36:49,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:49,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37225553] [2024-11-07 23:36:49,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:49,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:49,704 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 23:36:49,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:49,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37225553] [2024-11-07 23:36:49,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37225553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:49,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:49,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:36:49,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013437373] [2024-11-07 23:36:49,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:49,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:36:49,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:49,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:36:49,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:36:49,725 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 107 [2024-11-07 23:36:49,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 101 transitions, 313 flow. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 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 23:36:49,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:49,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 107 [2024-11-07 23:36:49,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:51,377 INFO L124 PetriNetUnfolderBase]: 15298/28335 cut-off events. [2024-11-07 23:36:51,377 INFO L125 PetriNetUnfolderBase]: For 21353/23032 co-relation queries the response was YES. [2024-11-07 23:36:51,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64206 conditions, 28335 events. 15298/28335 cut-off events. For 21353/23032 co-relation queries the response was YES. Maximal size of possible extension queue 1542. Compared 279083 event pairs, 5190 based on Foata normal form. 1293/26842 useless extension candidates. Maximal degree in co-relation 44615. Up to 9851 conditions per place. [2024-11-07 23:36:51,593 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 78 selfloop transitions, 4 changer transitions 0/131 dead transitions. [2024-11-07 23:36:51,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 131 transitions, 593 flow [2024-11-07 23:36:51,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:36:51,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:36:51,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 309 transitions. [2024-11-07 23:36:51,595 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7219626168224299 [2024-11-07 23:36:51,595 INFO L175 Difference]: Start difference. First operand has 103 places, 101 transitions, 313 flow. Second operand 4 states and 309 transitions. [2024-11-07 23:36:51,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 131 transitions, 593 flow [2024-11-07 23:36:51,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 131 transitions, 578 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:36:51,776 INFO L231 Difference]: Finished difference. Result has 102 places, 100 transitions, 310 flow [2024-11-07 23:36:51,777 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=310, PETRI_PLACES=102, PETRI_TRANSITIONS=100} [2024-11-07 23:36:51,777 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 8 predicate places. [2024-11-07 23:36:51,777 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 100 transitions, 310 flow [2024-11-07 23:36:51,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 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 23:36:51,777 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:51,777 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:51,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 23:36:51,778 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-07 23:36:51,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:51,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1630756460, now seen corresponding path program 1 times [2024-11-07 23:36:51,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:51,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765614702] [2024-11-07 23:36:51,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:51,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:51,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:51,826 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 23:36:51,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:51,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765614702] [2024-11-07 23:36:51,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765614702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:51,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:51,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:36:51,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997715355] [2024-11-07 23:36:51,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:51,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:36:51,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:51,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:36:51,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:36:51,845 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2024-11-07 23:36:51,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 100 transitions, 310 flow. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 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 23:36:51,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:51,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2024-11-07 23:36:51,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:53,526 INFO L124 PetriNetUnfolderBase]: 19843/32597 cut-off events. [2024-11-07 23:36:53,526 INFO L125 PetriNetUnfolderBase]: For 26193/27633 co-relation queries the response was YES. [2024-11-07 23:36:53,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77377 conditions, 32597 events. 19843/32597 cut-off events. For 26193/27633 co-relation queries the response was YES. Maximal size of possible extension queue 1760. Compared 290948 event pairs, 8135 based on Foata normal form. 1493/31258 useless extension candidates. Maximal degree in co-relation 53723. Up to 14944 conditions per place. [2024-11-07 23:36:53,741 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 112 selfloop transitions, 5 changer transitions 0/164 dead transitions. [2024-11-07 23:36:53,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 164 transitions, 769 flow [2024-11-07 23:36:53,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:36:53,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:36:53,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 329 transitions. [2024-11-07 23:36:53,742 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7686915887850467 [2024-11-07 23:36:53,742 INFO L175 Difference]: Start difference. First operand has 102 places, 100 transitions, 310 flow. Second operand 4 states and 329 transitions. [2024-11-07 23:36:53,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 164 transitions, 769 flow [2024-11-07 23:36:53,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 164 transitions, 746 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 23:36:53,806 INFO L231 Difference]: Finished difference. Result has 101 places, 100 transitions, 312 flow [2024-11-07 23:36:53,806 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=312, PETRI_PLACES=101, PETRI_TRANSITIONS=100} [2024-11-07 23:36:53,806 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 7 predicate places. [2024-11-07 23:36:53,806 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 100 transitions, 312 flow [2024-11-07 23:36:53,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 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 23:36:53,807 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:53,807 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:53,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 23:36:53,807 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-07 23:36:53,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:53,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1465499025, now seen corresponding path program 1 times [2024-11-07 23:36:53,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:53,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563192618] [2024-11-07 23:36:53,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:53,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:53,902 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 23:36:53,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:53,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563192618] [2024-11-07 23:36:53,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563192618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:53,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:53,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:36:53,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372645077] [2024-11-07 23:36:53,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:53,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:36:53,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:53,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:36:53,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 23:36:53,945 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2024-11-07 23:36:53,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 100 transitions, 312 flow. Second operand has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 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 23:36:53,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:53,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2024-11-07 23:36:53,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:55,708 INFO L124 PetriNetUnfolderBase]: 21238/34068 cut-off events. [2024-11-07 23:36:55,708 INFO L125 PetriNetUnfolderBase]: For 31506/33641 co-relation queries the response was YES. [2024-11-07 23:36:55,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83982 conditions, 34068 events. 21238/34068 cut-off events. For 31506/33641 co-relation queries the response was YES. Maximal size of possible extension queue 1910. Compared 297329 event pairs, 5085 based on Foata normal form. 2581/34291 useless extension candidates. Maximal degree in co-relation 68089. Up to 9331 conditions per place. [2024-11-07 23:36:55,912 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 142 selfloop transitions, 9 changer transitions 0/196 dead transitions. [2024-11-07 23:36:55,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 196 transitions, 980 flow [2024-11-07 23:36:55,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:36:55,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:36:55,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 455 transitions. [2024-11-07 23:36:55,914 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7087227414330218 [2024-11-07 23:36:55,914 INFO L175 Difference]: Start difference. First operand has 101 places, 100 transitions, 312 flow. Second operand 6 states and 455 transitions. [2024-11-07 23:36:55,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 196 transitions, 980 flow [2024-11-07 23:36:56,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 196 transitions, 964 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:36:56,075 INFO L231 Difference]: Finished difference. Result has 105 places, 100 transitions, 333 flow [2024-11-07 23:36:56,076 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=333, PETRI_PLACES=105, PETRI_TRANSITIONS=100} [2024-11-07 23:36:56,076 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 11 predicate places. [2024-11-07 23:36:56,076 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 100 transitions, 333 flow [2024-11-07 23:36:56,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 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 23:36:56,076 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:56,076 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:56,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 23:36:56,077 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-07 23:36:56,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:56,077 INFO L85 PathProgramCache]: Analyzing trace with hash 449275907, now seen corresponding path program 1 times [2024-11-07 23:36:56,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:56,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397227451] [2024-11-07 23:36:56,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:56,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:56,123 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 23:36:56,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:56,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397227451] [2024-11-07 23:36:56,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397227451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:56,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:56,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:36:56,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420362576] [2024-11-07 23:36:56,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:56,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:36:56,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:56,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:36:56,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:36:56,138 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 107 [2024-11-07 23:36:56,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 100 transitions, 333 flow. Second operand has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 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 23:36:56,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:56,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 107 [2024-11-07 23:36:56,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:57,668 INFO L124 PetriNetUnfolderBase]: 16382/29668 cut-off events. [2024-11-07 23:36:57,668 INFO L125 PetriNetUnfolderBase]: For 31629/33957 co-relation queries the response was YES. [2024-11-07 23:36:57,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72299 conditions, 29668 events. 16382/29668 cut-off events. For 31629/33957 co-relation queries the response was YES. Maximal size of possible extension queue 1585. Compared 286934 event pairs, 5615 based on Foata normal form. 2300/29141 useless extension candidates. Maximal degree in co-relation 59352. Up to 10934 conditions per place. [2024-11-07 23:36:57,841 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 83 selfloop transitions, 4 changer transitions 0/132 dead transitions. [2024-11-07 23:36:57,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 132 transitions, 643 flow [2024-11-07 23:36:57,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:36:57,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:36:57,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 305 transitions. [2024-11-07 23:36:57,842 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7126168224299065 [2024-11-07 23:36:57,842 INFO L175 Difference]: Start difference. First operand has 105 places, 100 transitions, 333 flow. Second operand 4 states and 305 transitions. [2024-11-07 23:36:57,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 132 transitions, 643 flow [2024-11-07 23:36:57,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 132 transitions, 621 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 23:36:57,959 INFO L231 Difference]: Finished difference. Result has 103 places, 99 transitions, 324 flow [2024-11-07 23:36:57,959 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=324, PETRI_PLACES=103, PETRI_TRANSITIONS=99} [2024-11-07 23:36:57,959 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 9 predicate places. [2024-11-07 23:36:57,959 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 99 transitions, 324 flow [2024-11-07 23:36:57,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 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 23:36:57,959 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:57,960 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:57,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 23:36:57,960 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-07 23:36:57,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:57,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1533478894, now seen corresponding path program 1 times [2024-11-07 23:36:57,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:57,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332051375] [2024-11-07 23:36:57,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:57,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:58,034 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 23:36:58,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:58,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332051375] [2024-11-07 23:36:58,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332051375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:58,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:58,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 23:36:58,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345292360] [2024-11-07 23:36:58,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:58,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:36:58,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:58,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:36:58,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:36:58,066 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2024-11-07 23:36:58,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 99 transitions, 324 flow. Second operand has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 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 23:36:58,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:58,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2024-11-07 23:36:58,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:59,926 INFO L124 PetriNetUnfolderBase]: 20831/33365 cut-off events. [2024-11-07 23:36:59,926 INFO L125 PetriNetUnfolderBase]: For 30395/32085 co-relation queries the response was YES. [2024-11-07 23:37:00,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84644 conditions, 33365 events. 20831/33365 cut-off events. For 30395/32085 co-relation queries the response was YES. Maximal size of possible extension queue 1853. Compared 288562 event pairs, 8769 based on Foata normal form. 2095/33052 useless extension candidates. Maximal degree in co-relation 68875. Up to 15735 conditions per place. [2024-11-07 23:37:00,155 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 177 selfloop transitions, 8 changer transitions 0/227 dead transitions. [2024-11-07 23:37:00,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 227 transitions, 1186 flow [2024-11-07 23:37:00,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:37:00,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:37:00,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 486 transitions. [2024-11-07 23:37:00,157 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7570093457943925 [2024-11-07 23:37:00,158 INFO L175 Difference]: Start difference. First operand has 103 places, 99 transitions, 324 flow. Second operand 6 states and 486 transitions. [2024-11-07 23:37:00,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 227 transitions, 1186 flow [2024-11-07 23:37:00,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 227 transitions, 1149 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-07 23:37:00,354 INFO L231 Difference]: Finished difference. Result has 105 places, 99 transitions, 334 flow [2024-11-07 23:37:00,354 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=334, PETRI_PLACES=105, PETRI_TRANSITIONS=99} [2024-11-07 23:37:00,355 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 11 predicate places. [2024-11-07 23:37:00,355 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 99 transitions, 334 flow [2024-11-07 23:37:00,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 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 23:37:00,355 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:00,355 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:00,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 23:37:00,356 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-07 23:37:00,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:00,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1042651060, now seen corresponding path program 1 times [2024-11-07 23:37:00,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:00,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289605799] [2024-11-07 23:37:00,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:00,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:00,437 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 23:37:00,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:00,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289605799] [2024-11-07 23:37:00,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289605799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:00,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:00,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:37:00,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979933640] [2024-11-07 23:37:00,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:00,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:37:00,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:00,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:37:00,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:37:00,468 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 107 [2024-11-07 23:37:00,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 99 transitions, 334 flow. Second operand has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 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 23:37:00,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:00,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 107 [2024-11-07 23:37:00,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:02,813 INFO L124 PetriNetUnfolderBase]: 21212/33178 cut-off events. [2024-11-07 23:37:02,813 INFO L125 PetriNetUnfolderBase]: For 42460/45193 co-relation queries the response was YES. [2024-11-07 23:37:02,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86176 conditions, 33178 events. 21212/33178 cut-off events. For 42460/45193 co-relation queries the response was YES. Maximal size of possible extension queue 1821. Compared 278513 event pairs, 5615 based on Foata normal form. 2733/33840 useless extension candidates. Maximal degree in co-relation 70314. Up to 13203 conditions per place. [2024-11-07 23:37:03,060 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 116 selfloop transitions, 6 changer transitions 0/164 dead transitions. [2024-11-07 23:37:03,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 164 transitions, 860 flow [2024-11-07 23:37:03,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:37:03,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:37:03,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 388 transitions. [2024-11-07 23:37:03,062 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7252336448598131 [2024-11-07 23:37:03,062 INFO L175 Difference]: Start difference. First operand has 105 places, 99 transitions, 334 flow. Second operand 5 states and 388 transitions. [2024-11-07 23:37:03,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 164 transitions, 860 flow [2024-11-07 23:37:03,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 164 transitions, 835 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-07 23:37:03,215 INFO L231 Difference]: Finished difference. Result has 106 places, 98 transitions, 335 flow [2024-11-07 23:37:03,215 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=335, PETRI_PLACES=106, PETRI_TRANSITIONS=98} [2024-11-07 23:37:03,216 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 12 predicate places. [2024-11-07 23:37:03,216 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 98 transitions, 335 flow [2024-11-07 23:37:03,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 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 23:37:03,216 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:03,216 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:03,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 23:37:03,216 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-07 23:37:03,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:03,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1042652085, now seen corresponding path program 1 times [2024-11-07 23:37:03,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:03,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261721325] [2024-11-07 23:37:03,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:03,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:03,254 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 23:37:03,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:03,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261721325] [2024-11-07 23:37:03,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261721325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:03,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:03,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:37:03,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946550656] [2024-11-07 23:37:03,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:03,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:37:03,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:03,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:37:03,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:37:03,275 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2024-11-07 23:37:03,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 98 transitions, 335 flow. Second operand has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 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 23:37:03,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:03,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2024-11-07 23:37:03,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:04,781 INFO L124 PetriNetUnfolderBase]: 17693/29827 cut-off events. [2024-11-07 23:37:04,781 INFO L125 PetriNetUnfolderBase]: For 37989/40176 co-relation queries the response was YES. [2024-11-07 23:37:04,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74952 conditions, 29827 events. 17693/29827 cut-off events. For 37989/40176 co-relation queries the response was YES. Maximal size of possible extension queue 1660. Compared 270414 event pairs, 9143 based on Foata normal form. 2565/30317 useless extension candidates. Maximal degree in co-relation 61134. Up to 15891 conditions per place. [2024-11-07 23:37:05,059 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 118 selfloop transitions, 4 changer transitions 0/164 dead transitions. [2024-11-07 23:37:05,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 164 transitions, 843 flow [2024-11-07 23:37:05,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:37:05,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:37:05,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 327 transitions. [2024-11-07 23:37:05,060 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.764018691588785 [2024-11-07 23:37:05,060 INFO L175 Difference]: Start difference. First operand has 106 places, 98 transitions, 335 flow. Second operand 4 states and 327 transitions. [2024-11-07 23:37:05,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 164 transitions, 843 flow [2024-11-07 23:37:05,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 164 transitions, 831 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 23:37:05,198 INFO L231 Difference]: Finished difference. Result has 105 places, 97 transitions, 325 flow [2024-11-07 23:37:05,198 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=325, PETRI_PLACES=105, PETRI_TRANSITIONS=97} [2024-11-07 23:37:05,198 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 11 predicate places. [2024-11-07 23:37:05,198 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 97 transitions, 325 flow [2024-11-07 23:37:05,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 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 23:37:05,199 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:05,199 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:05,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 23:37:05,199 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-07 23:37:05,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:05,199 INFO L85 PathProgramCache]: Analyzing trace with hash -2037554650, now seen corresponding path program 1 times [2024-11-07 23:37:05,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:05,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33988705] [2024-11-07 23:37:05,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:05,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:05,283 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 23:37:05,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:05,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33988705] [2024-11-07 23:37:05,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33988705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:05,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:05,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:37:05,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726919420] [2024-11-07 23:37:05,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:05,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:37:05,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:05,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:37:05,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 23:37:05,329 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2024-11-07 23:37:05,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 97 transitions, 325 flow. Second operand has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:05,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:05,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2024-11-07 23:37:05,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:07,061 INFO L124 PetriNetUnfolderBase]: 20834/32422 cut-off events. [2024-11-07 23:37:07,062 INFO L125 PetriNetUnfolderBase]: For 40978/43711 co-relation queries the response was YES. [2024-11-07 23:37:07,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83597 conditions, 32422 events. 20834/32422 cut-off events. For 40978/43711 co-relation queries the response was YES. Maximal size of possible extension queue 1764. Compared 270669 event pairs, 5615 based on Foata normal form. 3489/33840 useless extension candidates. Maximal degree in co-relation 68092. Up to 10190 conditions per place. [2024-11-07 23:37:07,328 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 146 selfloop transitions, 9 changer transitions 0/196 dead transitions. [2024-11-07 23:37:07,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 196 transitions, 1037 flow [2024-11-07 23:37:07,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:37:07,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:37:07,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 452 transitions. [2024-11-07 23:37:07,330 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7040498442367601 [2024-11-07 23:37:07,330 INFO L175 Difference]: Start difference. First operand has 105 places, 97 transitions, 325 flow. Second operand 6 states and 452 transitions. [2024-11-07 23:37:07,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 196 transitions, 1037 flow [2024-11-07 23:37:07,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 196 transitions, 1031 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:37:07,466 INFO L231 Difference]: Finished difference. Result has 108 places, 97 transitions, 344 flow [2024-11-07 23:37:07,466 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=344, PETRI_PLACES=108, PETRI_TRANSITIONS=97} [2024-11-07 23:37:07,467 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 14 predicate places. [2024-11-07 23:37:07,467 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 97 transitions, 344 flow [2024-11-07 23:37:07,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:37:07,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:37:07,467 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:07,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 23:37:07,469 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-07 23:37:07,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:37:07,470 INFO L85 PathProgramCache]: Analyzing trace with hash -2087334054, now seen corresponding path program 1 times [2024-11-07 23:37:07,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:37:07,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015533603] [2024-11-07 23:37:07,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:37:07,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:37:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:37:07,523 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 23:37:07,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:37:07,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015533603] [2024-11-07 23:37:07,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015533603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:37:07,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:37:07,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 23:37:07,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486953951] [2024-11-07 23:37:07,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:37:07,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:37:07,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:37:07,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:37:07,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:37:07,557 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2024-11-07 23:37:07,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 97 transitions, 344 flow. Second operand has 5 states, 5 states have (on average 57.4) internal successors, (287), 5 states have internal predecessors, (287), 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 23:37:07,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:37:07,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2024-11-07 23:37:07,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:37:09,255 INFO L124 PetriNetUnfolderBase]: 20834/31454 cut-off events. [2024-11-07 23:37:09,255 INFO L125 PetriNetUnfolderBase]: For 45669/48351 co-relation queries the response was YES. [2024-11-07 23:37:09,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86131 conditions, 31454 events. 20834/31454 cut-off events. For 45669/48351 co-relation queries the response was YES. Maximal size of possible extension queue 1764. Compared 252581 event pairs, 9143 based on Foata normal form. 3060/33193 useless extension candidates. Maximal degree in co-relation 70213. Up to 16269 conditions per place. [2024-11-07 23:37:09,458 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 0 selfloop transitions, 0 changer transitions 230/230 dead transitions. [2024-11-07 23:37:09,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 230 transitions, 1264 flow [2024-11-07 23:37:09,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:37:09,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:37:09,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 482 transitions. [2024-11-07 23:37:09,459 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7507788161993769 [2024-11-07 23:37:09,459 INFO L175 Difference]: Start difference. First operand has 108 places, 97 transitions, 344 flow. Second operand 6 states and 482 transitions. [2024-11-07 23:37:09,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 230 transitions, 1264 flow [2024-11-07 23:37:09,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 230 transitions, 1246 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-07 23:37:09,769 INFO L231 Difference]: Finished difference. Result has 107 places, 0 transitions, 0 flow [2024-11-07 23:37:09,769 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=107, PETRI_TRANSITIONS=0} [2024-11-07 23:37:09,770 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 13 predicate places. [2024-11-07 23:37:09,770 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 0 transitions, 0 flow [2024-11-07 23:37:09,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.4) internal successors, (287), 5 states have internal predecessors, (287), 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 23:37:09,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2024-11-07 23:37:09,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2024-11-07 23:37:09,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2024-11-07 23:37:09,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2024-11-07 23:37:09,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2024-11-07 23:37:09,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2024-11-07 23:37:09,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2024-11-07 23:37:09,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2024-11-07 23:37:09,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2024-11-07 23:37:09,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2024-11-07 23:37:09,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2024-11-07 23:37:09,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2024-11-07 23:37:09,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2024-11-07 23:37:09,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2024-11-07 23:37:09,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2024-11-07 23:37:09,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2024-11-07 23:37:09,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2024-11-07 23:37:09,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2024-11-07 23:37:09,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2024-11-07 23:37:09,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2024-11-07 23:37:09,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2024-11-07 23:37:09,774 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2024-11-07 23:37:09,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2024-11-07 23:37:09,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2024-11-07 23:37:09,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2024-11-07 23:37:09,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2024-11-07 23:37:09,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2024-11-07 23:37:09,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2024-11-07 23:37:09,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2024-11-07 23:37:09,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2024-11-07 23:37:09,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2024-11-07 23:37:09,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2024-11-07 23:37:09,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2024-11-07 23:37:09,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2024-11-07 23:37:09,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2024-11-07 23:37:09,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2024-11-07 23:37:09,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2024-11-07 23:37:09,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2024-11-07 23:37:09,775 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2024-11-07 23:37:09,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 23:37:09,776 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:37:09,780 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 23:37:09,781 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 23:37:09,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:37:09 BasicIcfg [2024-11-07 23:37:09,785 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 23:37:09,786 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 23:37:09,786 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 23:37:09,786 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 23:37:09,787 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:36:29" (3/4) ... [2024-11-07 23:37:09,788 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 23:37:09,791 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-07 23:37:09,791 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-07 23:37:09,791 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-07 23:37:09,795 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 86 nodes and edges [2024-11-07 23:37:09,797 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-07 23:37:09,797 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-07 23:37:09,797 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-07 23:37:09,860 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 23:37:09,861 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 23:37:09,861 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 23:37:09,862 INFO L158 Benchmark]: Toolchain (without parser) took 41590.91ms. Allocated memory was 100.7MB in the beginning and 3.9GB in the end (delta: 3.8GB). Free memory was 76.8MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2024-11-07 23:37:09,863 INFO L158 Benchmark]: CDTParser took 0.76ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:37:09,863 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.81ms. Allocated memory is still 100.7MB. Free memory was 76.6MB in the beginning and 64.8MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:37:09,864 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.31ms. Allocated memory is still 100.7MB. Free memory was 64.8MB in the beginning and 62.8MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:37:09,864 INFO L158 Benchmark]: Boogie Preprocessor took 73.80ms. Allocated memory is still 100.7MB. Free memory was 62.8MB in the beginning and 60.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:37:09,864 INFO L158 Benchmark]: RCFGBuilder took 893.43ms. Allocated memory is still 100.7MB. Free memory was 60.7MB in the beginning and 37.9MB in the end (delta: 22.8MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2024-11-07 23:37:09,864 INFO L158 Benchmark]: TraceAbstraction took 40300.89ms. Allocated memory was 100.7MB in the beginning and 3.9GB in the end (delta: 3.8GB). Free memory was 37.0MB in the beginning and 2.4GB in the end (delta: -2.4GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2024-11-07 23:37:09,864 INFO L158 Benchmark]: Witness Printer took 75.03ms. Allocated memory is still 3.9GB. Free memory was 2.4GB in the beginning and 2.4GB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:37:09,866 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.81ms. Allocated memory is still 100.7MB. Free memory was 76.6MB in the beginning and 64.8MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.31ms. Allocated memory is still 100.7MB. Free memory was 64.8MB in the beginning and 62.8MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.80ms. Allocated memory is still 100.7MB. Free memory was 62.8MB in the beginning and 60.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 893.43ms. Allocated memory is still 100.7MB. Free memory was 60.7MB in the beginning and 37.9MB in the end (delta: 22.8MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. * TraceAbstraction took 40300.89ms. Allocated memory was 100.7MB in the beginning and 3.9GB in the end (delta: 3.8GB). Free memory was 37.0MB in the beginning and 2.4GB in the end (delta: -2.4GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * Witness Printer took 75.03ms. Allocated memory is still 3.9GB. Free memory was 2.4GB in the beginning and 2.4GB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 171 locations, 39 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 40.1s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 38.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2249 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1939 mSDsluCounter, 270 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 128 mSDsCounter, 103 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4497 IncrementalHoareTripleChecker+Invalid, 4600 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 103 mSolverCounterUnsat, 142 mSDtfsCounter, 4497 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=344occurred in iteration=19, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 272 NumberOfCodeBlocks, 272 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 252 ConstructedInterpolants, 0 QuantifiedInterpolants, 819 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-07 23:37:09,885 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE