./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-exp-term-symm.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-exp-term-symm.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', 'a6cef8f51d4b8dff634e07872101a48e47fb1f63ea17b45a5f4511bf6a262ddb'] 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-exp-term-symm.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 a6cef8f51d4b8dff634e07872101a48e47fb1f63ea17b45a5f4511bf6a262ddb --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:36:12,258 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:36:12,328 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:36:12,333 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:36:12,333 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:36:12,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:36:12,349 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:36:12,349 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:36:12,349 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:36:12,349 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:36:12,349 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:36:12,349 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:36:12,350 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:36:12,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:36:12,350 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:36:12,350 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:36:12,350 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:36:12,350 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:36:12,350 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:36:12,350 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:36:12,350 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:36:12,351 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:36:12,351 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:36:12,351 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:36:12,351 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:36:12,351 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:36:12,351 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:36:12,351 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:36:12,351 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:36:12,351 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:36:12,351 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:36:12,351 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:36:12,351 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:36:12,352 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:36:12,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:36:12,352 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:36:12,352 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:36:12,352 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:36:12,352 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:36:12,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:36:12,352 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:36:12,352 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:36:12,352 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:36:12,352 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:36:12,352 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 -> a6cef8f51d4b8dff634e07872101a48e47fb1f63ea17b45a5f4511bf6a262ddb [2024-11-07 23:36:12,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:36:12,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:36:12,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:36:12,566 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:36:12,566 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:36:12,567 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c [2024-11-07 23:36:13,729 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:36:13,876 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:36:13,876 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c [2024-11-07 23:36:13,881 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d91a022d8/de8067314eaf40c8854aa37ef158ceb0/FLAGe7f16d996 [2024-11-07 23:36:14,277 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d91a022d8/de8067314eaf40c8854aa37ef158ceb0 [2024-11-07 23:36:14,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:36:14,280 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:36:14,281 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:36:14,281 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:36:14,283 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:36:14,284 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:36:14" (1/1) ... [2024-11-07 23:36:14,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3deb5f6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:14, skipping insertion in model container [2024-11-07 23:36:14,284 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:36:14" (1/1) ... [2024-11-07 23:36:14,295 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:36:14,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:36:14,407 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:36:14,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:36:14,432 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:36:14,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:14 WrapperNode [2024-11-07 23:36:14,432 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:36:14,433 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:36:14,433 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:36:14,433 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:36:14,437 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:14" (1/1) ... [2024-11-07 23:36:14,440 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:14" (1/1) ... [2024-11-07 23:36:14,456 INFO L138 Inliner]: procedures = 21, calls = 16, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 153 [2024-11-07 23:36:14,459 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:36:14,460 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:36:14,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:36:14,460 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:36:14,466 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:14" (1/1) ... [2024-11-07 23:36:14,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:14" (1/1) ... [2024-11-07 23:36:14,467 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:14" (1/1) ... [2024-11-07 23:36:14,480 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 23:36:14,483 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:14" (1/1) ... [2024-11-07 23:36:14,483 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:14" (1/1) ... [2024-11-07 23:36:14,488 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:14" (1/1) ... [2024-11-07 23:36:14,492 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:14" (1/1) ... [2024-11-07 23:36:14,493 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:14" (1/1) ... [2024-11-07 23:36:14,494 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:14" (1/1) ... [2024-11-07 23:36:14,495 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:36:14,497 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:36:14,497 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:36:14,497 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:36:14,497 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:14" (1/1) ... [2024-11-07 23:36:14,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:36:14,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:36:14,522 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 23:36:14,525 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 23:36:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:36:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 23:36:14,543 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 23:36:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 23:36:14,543 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 23:36:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:36:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:36:14,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:36:14,544 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 23:36:14,617 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:36:14,619 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:36:14,829 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:36:14,829 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:36:14,948 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:36:14,948 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 23:36:14,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:36:14 BoogieIcfgContainer [2024-11-07 23:36:14,949 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:36:14,950 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:36:14,950 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:36:14,954 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:36:14,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:36:14" (1/3) ... [2024-11-07 23:36:14,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8e26e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:36:14, skipping insertion in model container [2024-11-07 23:36:14,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:36:14" (2/3) ... [2024-11-07 23:36:14,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8e26e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:36:14, skipping insertion in model container [2024-11-07 23:36:14,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:36:14" (3/3) ... [2024-11-07 23:36:14,957 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-symm.wvr.c [2024-11-07 23:36:14,968 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:36:14,968 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-07 23:36:14,968 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:36:15,022 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 23:36:15,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 66 transitions, 146 flow [2024-11-07 23:36:15,073 INFO L124 PetriNetUnfolderBase]: 10/64 cut-off events. [2024-11-07 23:36:15,076 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 23:36:15,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 64 events. 10/64 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 202 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2024-11-07 23:36:15,081 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 66 transitions, 146 flow [2024-11-07 23:36:15,084 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 62 transitions, 133 flow [2024-11-07 23:36:15,089 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:36:15,095 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;@188245da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:36:15,095 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-07 23:36:15,101 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:36:15,101 INFO L124 PetriNetUnfolderBase]: 3/25 cut-off events. [2024-11-07 23:36:15,101 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 23:36:15,101 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:15,102 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:15,102 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-07 23:36:15,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:15,105 INFO L85 PathProgramCache]: Analyzing trace with hash 903123495, now seen corresponding path program 1 times [2024-11-07 23:36:15,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:15,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202801668] [2024-11-07 23:36:15,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:15,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:15,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:15,296 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 23:36:15,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:15,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202801668] [2024-11-07 23:36:15,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202801668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:15,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:15,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:36:15,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225608791] [2024-11-07 23:36:15,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:15,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:36:15,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:15,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:36:15,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:36:15,349 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 66 [2024-11-07 23:36:15,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 62 transitions, 133 flow. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 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 23:36:15,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:15,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 66 [2024-11-07 23:36:15,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:15,591 INFO L124 PetriNetUnfolderBase]: 670/1329 cut-off events. [2024-11-07 23:36:15,592 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-07 23:36:15,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2399 conditions, 1329 events. 670/1329 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 8790 event pairs, 227 based on Foata normal form. 44/1091 useless extension candidates. Maximal degree in co-relation 2335. Up to 539 conditions per place. [2024-11-07 23:36:15,600 INFO L140 encePairwiseOnDemand]: 58/66 looper letters, 56 selfloop transitions, 5 changer transitions 0/91 dead transitions. [2024-11-07 23:36:15,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 91 transitions, 319 flow [2024-11-07 23:36:15,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:36:15,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:36:15,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 192 transitions. [2024-11-07 23:36:15,609 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7272727272727273 [2024-11-07 23:36:15,610 INFO L175 Difference]: Start difference. First operand has 59 places, 62 transitions, 133 flow. Second operand 4 states and 192 transitions. [2024-11-07 23:36:15,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 91 transitions, 319 flow [2024-11-07 23:36:15,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 91 transitions, 312 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:36:15,620 INFO L231 Difference]: Finished difference. Result has 61 places, 64 transitions, 162 flow [2024-11-07 23:36:15,622 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=162, PETRI_PLACES=61, PETRI_TRANSITIONS=64} [2024-11-07 23:36:15,625 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 2 predicate places. [2024-11-07 23:36:15,625 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 64 transitions, 162 flow [2024-11-07 23:36:15,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 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 23:36:15,626 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:15,626 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:15,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 23:36:15,627 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-07 23:36:15,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:15,627 INFO L85 PathProgramCache]: Analyzing trace with hash -2067942178, now seen corresponding path program 1 times [2024-11-07 23:36:15,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:15,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553314950] [2024-11-07 23:36:15,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:15,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:15,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:36:15,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:15,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553314950] [2024-11-07 23:36:15,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553314950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:15,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:15,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:36:15,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228821167] [2024-11-07 23:36:15,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:15,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:36:15,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:15,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:36:15,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:36:15,743 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 66 [2024-11-07 23:36:15,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 64 transitions, 162 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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 23:36:15,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:15,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 66 [2024-11-07 23:36:15,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:15,892 INFO L124 PetriNetUnfolderBase]: 505/1161 cut-off events. [2024-11-07 23:36:15,892 INFO L125 PetriNetUnfolderBase]: For 281/283 co-relation queries the response was YES. [2024-11-07 23:36:15,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2251 conditions, 1161 events. 505/1161 cut-off events. For 281/283 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 8030 event pairs, 134 based on Foata normal form. 2/992 useless extension candidates. Maximal degree in co-relation 1665. Up to 432 conditions per place. [2024-11-07 23:36:15,898 INFO L140 encePairwiseOnDemand]: 62/66 looper letters, 38 selfloop transitions, 4 changer transitions 0/76 dead transitions. [2024-11-07 23:36:15,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 76 transitions, 272 flow [2024-11-07 23:36:15,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:36:15,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:36:15,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 181 transitions. [2024-11-07 23:36:15,900 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6856060606060606 [2024-11-07 23:36:15,901 INFO L175 Difference]: Start difference. First operand has 61 places, 64 transitions, 162 flow. Second operand 4 states and 181 transitions. [2024-11-07 23:36:15,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 76 transitions, 272 flow [2024-11-07 23:36:15,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 76 transitions, 272 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 23:36:15,904 INFO L231 Difference]: Finished difference. Result has 63 places, 63 transitions, 168 flow [2024-11-07 23:36:15,904 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=63, PETRI_TRANSITIONS=63} [2024-11-07 23:36:15,906 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 4 predicate places. [2024-11-07 23:36:15,906 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 63 transitions, 168 flow [2024-11-07 23:36:15,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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 23:36:15,906 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:15,907 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:15,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 23:36:15,907 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-07 23:36:15,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:15,907 INFO L85 PathProgramCache]: Analyzing trace with hash 318270699, now seen corresponding path program 1 times [2024-11-07 23:36:15,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:15,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735711518] [2024-11-07 23:36:15,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:15,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:15,998 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 23:36:15,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:15,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735711518] [2024-11-07 23:36:15,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735711518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:15,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:15,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:36:15,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17721262] [2024-11-07 23:36:15,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:15,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:36:16,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:16,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:36:16,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:36:16,027 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 66 [2024-11-07 23:36:16,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 63 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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 23:36:16,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:16,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 66 [2024-11-07 23:36:16,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:16,148 INFO L124 PetriNetUnfolderBase]: 507/1143 cut-off events. [2024-11-07 23:36:16,149 INFO L125 PetriNetUnfolderBase]: For 519/521 co-relation queries the response was YES. [2024-11-07 23:36:16,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2305 conditions, 1143 events. 507/1143 cut-off events. For 519/521 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 7798 event pairs, 134 based on Foata normal form. 24/996 useless extension candidates. Maximal degree in co-relation 1713. Up to 454 conditions per place. [2024-11-07 23:36:16,154 INFO L140 encePairwiseOnDemand]: 62/66 looper letters, 39 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2024-11-07 23:36:16,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 75 transitions, 278 flow [2024-11-07 23:36:16,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:36:16,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:36:16,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 177 transitions. [2024-11-07 23:36:16,155 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6704545454545454 [2024-11-07 23:36:16,155 INFO L175 Difference]: Start difference. First operand has 63 places, 63 transitions, 168 flow. Second operand 4 states and 177 transitions. [2024-11-07 23:36:16,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 75 transitions, 278 flow [2024-11-07 23:36:16,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 75 transitions, 270 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:36:16,158 INFO L231 Difference]: Finished difference. Result has 62 places, 62 transitions, 164 flow [2024-11-07 23:36:16,158 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=62, PETRI_TRANSITIONS=62} [2024-11-07 23:36:16,158 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 3 predicate places. [2024-11-07 23:36:16,158 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 62 transitions, 164 flow [2024-11-07 23:36:16,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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 23:36:16,159 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:16,159 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:16,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 23:36:16,159 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-07 23:36:16,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:16,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1055215458, now seen corresponding path program 1 times [2024-11-07 23:36:16,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:16,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173897099] [2024-11-07 23:36:16,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:16,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:16,224 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 23:36:16,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:16,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173897099] [2024-11-07 23:36:16,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173897099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:16,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:16,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:36:16,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785758352] [2024-11-07 23:36:16,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:16,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:36:16,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:16,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:36:16,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:36:16,244 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 66 [2024-11-07 23:36:16,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 62 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 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 23:36:16,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:16,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 66 [2024-11-07 23:36:16,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:16,406 INFO L124 PetriNetUnfolderBase]: 800/1641 cut-off events. [2024-11-07 23:36:16,406 INFO L125 PetriNetUnfolderBase]: For 715/748 co-relation queries the response was YES. [2024-11-07 23:36:16,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3338 conditions, 1641 events. 800/1641 cut-off events. For 715/748 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 11479 event pairs, 293 based on Foata normal form. 83/1431 useless extension candidates. Maximal degree in co-relation 1885. Up to 667 conditions per place. [2024-11-07 23:36:16,415 INFO L140 encePairwiseOnDemand]: 58/66 looper letters, 60 selfloop transitions, 5 changer transitions 0/93 dead transitions. [2024-11-07 23:36:16,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 93 transitions, 406 flow [2024-11-07 23:36:16,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:36:16,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:36:16,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 190 transitions. [2024-11-07 23:36:16,417 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7196969696969697 [2024-11-07 23:36:16,417 INFO L175 Difference]: Start difference. First operand has 62 places, 62 transitions, 164 flow. Second operand 4 states and 190 transitions. [2024-11-07 23:36:16,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 93 transitions, 406 flow [2024-11-07 23:36:16,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 93 transitions, 386 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:36:16,422 INFO L231 Difference]: Finished difference. Result has 64 places, 64 transitions, 190 flow [2024-11-07 23:36:16,422 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=64, PETRI_TRANSITIONS=64} [2024-11-07 23:36:16,423 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 5 predicate places. [2024-11-07 23:36:16,423 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 64 transitions, 190 flow [2024-11-07 23:36:16,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 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 23:36:16,423 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:16,423 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:16,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 23:36:16,424 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-07 23:36:16,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:16,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1276457633, now seen corresponding path program 1 times [2024-11-07 23:36:16,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:16,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408040875] [2024-11-07 23:36:16,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:16,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:16,482 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 23:36:16,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:16,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408040875] [2024-11-07 23:36:16,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408040875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:16,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:16,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:36:16,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347687860] [2024-11-07 23:36:16,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:16,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:36:16,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:16,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:36:16,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:36:16,500 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 66 [2024-11-07 23:36:16,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 64 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 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 23:36:16,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:16,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 66 [2024-11-07 23:36:16,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:16,662 INFO L124 PetriNetUnfolderBase]: 661/1547 cut-off events. [2024-11-07 23:36:16,663 INFO L125 PetriNetUnfolderBase]: For 713/746 co-relation queries the response was YES. [2024-11-07 23:36:16,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3214 conditions, 1547 events. 661/1547 cut-off events. For 713/746 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 11391 event pairs, 300 based on Foata normal form. 44/1375 useless extension candidates. Maximal degree in co-relation 1942. Up to 652 conditions per place. [2024-11-07 23:36:16,670 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 60 selfloop transitions, 4 changer transitions 0/94 dead transitions. [2024-11-07 23:36:16,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 94 transitions, 414 flow [2024-11-07 23:36:16,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:36:16,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:36:16,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 187 transitions. [2024-11-07 23:36:16,671 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-11-07 23:36:16,671 INFO L175 Difference]: Start difference. First operand has 64 places, 64 transitions, 190 flow. Second operand 4 states and 187 transitions. [2024-11-07 23:36:16,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 94 transitions, 414 flow [2024-11-07 23:36:16,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 94 transitions, 411 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:36:16,674 INFO L231 Difference]: Finished difference. Result has 66 places, 63 transitions, 189 flow [2024-11-07 23:36:16,674 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=189, PETRI_PLACES=66, PETRI_TRANSITIONS=63} [2024-11-07 23:36:16,675 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 7 predicate places. [2024-11-07 23:36:16,675 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 63 transitions, 189 flow [2024-11-07 23:36:16,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 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 23:36:16,675 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:16,675 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:16,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 23:36:16,675 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-07 23:36:16,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:16,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1276456608, now seen corresponding path program 1 times [2024-11-07 23:36:16,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:16,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591163575] [2024-11-07 23:36:16,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:16,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:16,760 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 23:36:16,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:16,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591163575] [2024-11-07 23:36:16,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591163575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:16,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:16,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:36:16,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442816524] [2024-11-07 23:36:16,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:16,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:36:16,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:16,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:36:16,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:36:16,797 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 66 [2024-11-07 23:36:16,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 63 transitions, 189 flow. Second operand has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 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 23:36:16,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:16,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 66 [2024-11-07 23:36:16,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:16,968 INFO L124 PetriNetUnfolderBase]: 786/1581 cut-off events. [2024-11-07 23:36:16,968 INFO L125 PetriNetUnfolderBase]: For 632/683 co-relation queries the response was YES. [2024-11-07 23:36:16,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3554 conditions, 1581 events. 786/1581 cut-off events. For 632/683 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 10812 event pairs, 160 based on Foata normal form. 26/1472 useless extension candidates. Maximal degree in co-relation 2692. Up to 638 conditions per place. [2024-11-07 23:36:16,974 INFO L140 encePairwiseOnDemand]: 60/66 looper letters, 58 selfloop transitions, 6 changer transitions 0/92 dead transitions. [2024-11-07 23:36:16,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 92 transitions, 415 flow [2024-11-07 23:36:16,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:36:16,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:36:16,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 223 transitions. [2024-11-07 23:36:16,975 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6757575757575758 [2024-11-07 23:36:16,975 INFO L175 Difference]: Start difference. First operand has 66 places, 63 transitions, 189 flow. Second operand 5 states and 223 transitions. [2024-11-07 23:36:16,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 92 transitions, 415 flow [2024-11-07 23:36:16,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 92 transitions, 409 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:36:16,978 INFO L231 Difference]: Finished difference. Result has 67 places, 62 transitions, 193 flow [2024-11-07 23:36:16,978 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=193, PETRI_PLACES=67, PETRI_TRANSITIONS=62} [2024-11-07 23:36:16,978 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 8 predicate places. [2024-11-07 23:36:16,978 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 62 transitions, 193 flow [2024-11-07 23:36:16,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 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 23:36:16,979 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:16,979 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:16,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 23:36:16,979 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-07 23:36:16,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:16,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1648058593, now seen corresponding path program 1 times [2024-11-07 23:36:16,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:16,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574227850] [2024-11-07 23:36:16,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:16,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:16,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:17,024 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 23:36:17,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:17,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574227850] [2024-11-07 23:36:17,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574227850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:17,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:17,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:36:17,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392527097] [2024-11-07 23:36:17,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:17,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:36:17,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:17,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:36:17,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:36:17,041 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 66 [2024-11-07 23:36:17,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 62 transitions, 193 flow. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 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 23:36:17,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:17,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 66 [2024-11-07 23:36:17,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:17,169 INFO L124 PetriNetUnfolderBase]: 615/1449 cut-off events. [2024-11-07 23:36:17,169 INFO L125 PetriNetUnfolderBase]: For 927/951 co-relation queries the response was YES. [2024-11-07 23:36:17,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3054 conditions, 1449 events. 615/1449 cut-off events. For 927/951 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 10639 event pairs, 172 based on Foata normal form. 24/1307 useless extension candidates. Maximal degree in co-relation 1806. Up to 487 conditions per place. [2024-11-07 23:36:17,176 INFO L140 encePairwiseOnDemand]: 62/66 looper letters, 41 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2024-11-07 23:36:17,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 75 transitions, 334 flow [2024-11-07 23:36:17,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:36:17,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:36:17,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 180 transitions. [2024-11-07 23:36:17,177 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6818181818181818 [2024-11-07 23:36:17,178 INFO L175 Difference]: Start difference. First operand has 67 places, 62 transitions, 193 flow. Second operand 4 states and 180 transitions. [2024-11-07 23:36:17,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 75 transitions, 334 flow [2024-11-07 23:36:17,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 75 transitions, 319 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:36:17,183 INFO L231 Difference]: Finished difference. Result has 66 places, 61 transitions, 190 flow [2024-11-07 23:36:17,183 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=66, PETRI_TRANSITIONS=61} [2024-11-07 23:36:17,185 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 7 predicate places. [2024-11-07 23:36:17,185 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 61 transitions, 190 flow [2024-11-07 23:36:17,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 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 23:36:17,185 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:17,185 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:17,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 23:36:17,185 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-07 23:36:17,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:17,185 INFO L85 PathProgramCache]: Analyzing trace with hash 915449742, now seen corresponding path program 1 times [2024-11-07 23:36:17,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:17,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622172069] [2024-11-07 23:36:17,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:17,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:17,273 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 23:36:17,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:17,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622172069] [2024-11-07 23:36:17,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622172069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:17,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:17,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:36:17,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802810193] [2024-11-07 23:36:17,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:17,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:36:17,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:17,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:36:17,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 23:36:17,329 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 66 [2024-11-07 23:36:17,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 61 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 6 states have internal predecessors, (187), 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 23:36:17,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:17,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 66 [2024-11-07 23:36:17,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:17,509 INFO L124 PetriNetUnfolderBase]: 786/1548 cut-off events. [2024-11-07 23:36:17,509 INFO L125 PetriNetUnfolderBase]: For 1043/1095 co-relation queries the response was YES. [2024-11-07 23:36:17,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3572 conditions, 1548 events. 786/1548 cut-off events. For 1043/1095 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 10409 event pairs, 159 based on Foata normal form. 79/1492 useless extension candidates. Maximal degree in co-relation 2691. Up to 382 conditions per place. [2024-11-07 23:36:17,516 INFO L140 encePairwiseOnDemand]: 58/66 looper letters, 70 selfloop transitions, 9 changer transitions 0/106 dead transitions. [2024-11-07 23:36:17,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 106 transitions, 516 flow [2024-11-07 23:36:17,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:36:17,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:36:17,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 250 transitions. [2024-11-07 23:36:17,517 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6313131313131313 [2024-11-07 23:36:17,517 INFO L175 Difference]: Start difference. First operand has 66 places, 61 transitions, 190 flow. Second operand 6 states and 250 transitions. [2024-11-07 23:36:17,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 106 transitions, 516 flow [2024-11-07 23:36:17,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 106 transitions, 490 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:36:17,520 INFO L231 Difference]: Finished difference. Result has 68 places, 61 transitions, 207 flow [2024-11-07 23:36:17,520 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=207, PETRI_PLACES=68, PETRI_TRANSITIONS=61} [2024-11-07 23:36:17,521 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 9 predicate places. [2024-11-07 23:36:17,521 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 61 transitions, 207 flow [2024-11-07 23:36:17,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 6 states have internal predecessors, (187), 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 23:36:17,521 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:17,521 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:17,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 23:36:17,521 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-07 23:36:17,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:17,521 INFO L85 PathProgramCache]: Analyzing trace with hash 449759974, now seen corresponding path program 1 times [2024-11-07 23:36:17,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:17,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898814532] [2024-11-07 23:36:17,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:17,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:17,568 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 23:36:17,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:17,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898814532] [2024-11-07 23:36:17,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898814532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:17,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:17,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:36:17,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550761641] [2024-11-07 23:36:17,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:17,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:36:17,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:17,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:36:17,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:36:17,589 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 66 [2024-11-07 23:36:17,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 61 transitions, 207 flow. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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 23:36:17,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:17,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 66 [2024-11-07 23:36:17,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:17,698 INFO L124 PetriNetUnfolderBase]: 616/1413 cut-off events. [2024-11-07 23:36:17,699 INFO L125 PetriNetUnfolderBase]: For 1607/1683 co-relation queries the response was YES. [2024-11-07 23:36:17,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3226 conditions, 1413 events. 616/1413 cut-off events. For 1607/1683 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 10118 event pairs, 173 based on Foata normal form. 87/1347 useless extension candidates. Maximal degree in co-relation 1903. Up to 512 conditions per place. [2024-11-07 23:36:17,704 INFO L140 encePairwiseOnDemand]: 62/66 looper letters, 44 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2024-11-07 23:36:17,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 75 transitions, 365 flow [2024-11-07 23:36:17,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:36:17,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:36:17,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions. [2024-11-07 23:36:17,705 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-07 23:36:17,705 INFO L175 Difference]: Start difference. First operand has 68 places, 61 transitions, 207 flow. Second operand 4 states and 176 transitions. [2024-11-07 23:36:17,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 75 transitions, 365 flow [2024-11-07 23:36:17,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 75 transitions, 343 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 23:36:17,708 INFO L231 Difference]: Finished difference. Result has 66 places, 60 transitions, 198 flow [2024-11-07 23:36:17,708 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=198, PETRI_PLACES=66, PETRI_TRANSITIONS=60} [2024-11-07 23:36:17,708 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 7 predicate places. [2024-11-07 23:36:17,709 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 60 transitions, 198 flow [2024-11-07 23:36:17,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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 23:36:17,709 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:17,709 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:17,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 23:36:17,709 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-07 23:36:17,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:17,709 INFO L85 PathProgramCache]: Analyzing trace with hash -738511418, now seen corresponding path program 1 times [2024-11-07 23:36:17,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:17,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933814617] [2024-11-07 23:36:17,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:17,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:17,748 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 23:36:17,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:17,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933814617] [2024-11-07 23:36:17,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933814617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:17,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:17,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:36:17,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645938766] [2024-11-07 23:36:17,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:17,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:36:17,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:17,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:36:17,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:36:17,772 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 66 [2024-11-07 23:36:17,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 60 transitions, 198 flow. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 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 23:36:17,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:17,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 66 [2024-11-07 23:36:17,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:17,909 INFO L124 PetriNetUnfolderBase]: 788/1559 cut-off events. [2024-11-07 23:36:17,910 INFO L125 PetriNetUnfolderBase]: For 1454/1497 co-relation queries the response was YES. [2024-11-07 23:36:17,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3695 conditions, 1559 events. 788/1559 cut-off events. For 1454/1497 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 10479 event pairs, 297 based on Foata normal form. 69/1487 useless extension candidates. Maximal degree in co-relation 2201. Up to 672 conditions per place. [2024-11-07 23:36:17,916 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 59 selfloop transitions, 5 changer transitions 0/90 dead transitions. [2024-11-07 23:36:17,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 90 transitions, 437 flow [2024-11-07 23:36:17,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:36:17,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:36:17,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 185 transitions. [2024-11-07 23:36:17,917 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7007575757575758 [2024-11-07 23:36:17,917 INFO L175 Difference]: Start difference. First operand has 66 places, 60 transitions, 198 flow. Second operand 4 states and 185 transitions. [2024-11-07 23:36:17,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 90 transitions, 437 flow [2024-11-07 23:36:17,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 90 transitions, 414 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 23:36:17,919 INFO L231 Difference]: Finished difference. Result has 65 places, 60 transitions, 200 flow [2024-11-07 23:36:17,919 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=200, PETRI_PLACES=65, PETRI_TRANSITIONS=60} [2024-11-07 23:36:17,920 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 6 predicate places. [2024-11-07 23:36:17,920 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 60 transitions, 200 flow [2024-11-07 23:36:17,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 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 23:36:17,920 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:17,920 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:17,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 23:36:17,920 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-07 23:36:17,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:17,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1057656865, now seen corresponding path program 1 times [2024-11-07 23:36:17,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:17,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889264487] [2024-11-07 23:36:17,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:17,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:17,992 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 23:36:17,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:17,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889264487] [2024-11-07 23:36:17,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889264487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:17,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:17,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:36:17,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557854630] [2024-11-07 23:36:17,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:17,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:36:17,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:17,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:36:17,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:36:18,022 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 66 [2024-11-07 23:36:18,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 60 transitions, 200 flow. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 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 23:36:18,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:18,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 66 [2024-11-07 23:36:18,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:18,182 INFO L124 PetriNetUnfolderBase]: 880/1679 cut-off events. [2024-11-07 23:36:18,183 INFO L125 PetriNetUnfolderBase]: For 1673/1765 co-relation queries the response was YES. [2024-11-07 23:36:18,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4162 conditions, 1679 events. 880/1679 cut-off events. For 1673/1765 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 10992 event pairs, 188 based on Foata normal form. 92/1659 useless extension candidates. Maximal degree in co-relation 3232. Up to 666 conditions per place. [2024-11-07 23:36:18,193 INFO L140 encePairwiseOnDemand]: 60/66 looper letters, 62 selfloop transitions, 6 changer transitions 0/91 dead transitions. [2024-11-07 23:36:18,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 91 transitions, 474 flow [2024-11-07 23:36:18,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:36:18,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:36:18,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 221 transitions. [2024-11-07 23:36:18,194 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6696969696969697 [2024-11-07 23:36:18,194 INFO L175 Difference]: Start difference. First operand has 65 places, 60 transitions, 200 flow. Second operand 5 states and 221 transitions. [2024-11-07 23:36:18,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 91 transitions, 474 flow [2024-11-07 23:36:18,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 91 transitions, 462 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:36:18,196 INFO L231 Difference]: Finished difference. Result has 67 places, 59 transitions, 206 flow [2024-11-07 23:36:18,196 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=206, PETRI_PLACES=67, PETRI_TRANSITIONS=59} [2024-11-07 23:36:18,197 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 8 predicate places. [2024-11-07 23:36:18,197 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 59 transitions, 206 flow [2024-11-07 23:36:18,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 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 23:36:18,199 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:18,199 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:18,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 23:36:18,200 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-07 23:36:18,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:18,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1057657890, now seen corresponding path program 1 times [2024-11-07 23:36:18,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:18,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838651528] [2024-11-07 23:36:18,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:18,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:18,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:18,232 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 23:36:18,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:18,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838651528] [2024-11-07 23:36:18,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838651528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:18,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:18,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:36:18,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870429726] [2024-11-07 23:36:18,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:18,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:36:18,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:18,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:36:18,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:36:18,246 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 66 [2024-11-07 23:36:18,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 59 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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 23:36:18,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:18,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 66 [2024-11-07 23:36:18,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:18,371 INFO L124 PetriNetUnfolderBase]: 721/1530 cut-off events. [2024-11-07 23:36:18,371 INFO L125 PetriNetUnfolderBase]: For 1645/1717 co-relation queries the response was YES. [2024-11-07 23:36:18,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3676 conditions, 1530 events. 721/1530 cut-off events. For 1645/1717 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 10654 event pairs, 340 based on Foata normal form. 99/1517 useless extension candidates. Maximal degree in co-relation 2874. Up to 725 conditions per place. [2024-11-07 23:36:18,376 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 64 selfloop transitions, 4 changer transitions 0/91 dead transitions. [2024-11-07 23:36:18,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 91 transitions, 470 flow [2024-11-07 23:36:18,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:36:18,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:36:18,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 185 transitions. [2024-11-07 23:36:18,377 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7007575757575758 [2024-11-07 23:36:18,377 INFO L175 Difference]: Start difference. First operand has 67 places, 59 transitions, 206 flow. Second operand 4 states and 185 transitions. [2024-11-07 23:36:18,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 91 transitions, 470 flow [2024-11-07 23:36:18,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 91 transitions, 458 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-07 23:36:18,379 INFO L231 Difference]: Finished difference. Result has 66 places, 58 transitions, 196 flow [2024-11-07 23:36:18,380 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=196, PETRI_PLACES=66, PETRI_TRANSITIONS=58} [2024-11-07 23:36:18,380 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 7 predicate places. [2024-11-07 23:36:18,380 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 58 transitions, 196 flow [2024-11-07 23:36:18,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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 23:36:18,380 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:18,380 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:18,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 23:36:18,380 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-07 23:36:18,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:18,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1572374967, now seen corresponding path program 1 times [2024-11-07 23:36:18,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:18,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022961503] [2024-11-07 23:36:18,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:18,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:18,443 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 23:36:18,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:18,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022961503] [2024-11-07 23:36:18,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022961503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:18,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:18,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:36:18,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903648102] [2024-11-07 23:36:18,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:18,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:36:18,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:18,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:36:18,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 23:36:18,477 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 66 [2024-11-07 23:36:18,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 58 transitions, 196 flow. Second operand has 6 states, 6 states have (on average 31.5) internal successors, (189), 6 states have internal predecessors, (189), 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 23:36:18,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:18,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 66 [2024-11-07 23:36:18,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:18,651 INFO L124 PetriNetUnfolderBase]: 853/1625 cut-off events. [2024-11-07 23:36:18,651 INFO L125 PetriNetUnfolderBase]: For 1665/1757 co-relation queries the response was YES. [2024-11-07 23:36:18,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4026 conditions, 1625 events. 853/1625 cut-off events. For 1665/1757 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 10619 event pairs, 188 based on Foata normal form. 146/1659 useless extension candidates. Maximal degree in co-relation 3137. Up to 440 conditions per place. [2024-11-07 23:36:18,655 INFO L140 encePairwiseOnDemand]: 58/66 looper letters, 75 selfloop transitions, 9 changer transitions 0/106 dead transitions. [2024-11-07 23:36:18,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 106 transitions, 562 flow [2024-11-07 23:36:18,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:36:18,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:36:18,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 247 transitions. [2024-11-07 23:36:18,656 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6237373737373737 [2024-11-07 23:36:18,656 INFO L175 Difference]: Start difference. First operand has 66 places, 58 transitions, 196 flow. Second operand 6 states and 247 transitions. [2024-11-07 23:36:18,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 106 transitions, 562 flow [2024-11-07 23:36:18,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 106 transitions, 556 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:36:18,659 INFO L231 Difference]: Finished difference. Result has 69 places, 58 transitions, 215 flow [2024-11-07 23:36:18,659 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=215, PETRI_PLACES=69, PETRI_TRANSITIONS=58} [2024-11-07 23:36:18,659 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 10 predicate places. [2024-11-07 23:36:18,659 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 58 transitions, 215 flow [2024-11-07 23:36:18,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.5) internal successors, (189), 6 states have internal predecessors, (189), 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 23:36:18,659 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:36:18,659 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:18,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 23:36:18,660 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-07 23:36:18,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:36:18,660 INFO L85 PathProgramCache]: Analyzing trace with hash -551666041, now seen corresponding path program 1 times [2024-11-07 23:36:18,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:36:18,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87250368] [2024-11-07 23:36:18,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:36:18,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:36:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:36:18,697 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 23:36:18,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:36:18,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87250368] [2024-11-07 23:36:18,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87250368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:36:18,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:36:18,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 23:36:18,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160844761] [2024-11-07 23:36:18,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:36:18,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:36:18,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:36:18,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:36:18,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:36:18,722 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 66 [2024-11-07 23:36:18,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 58 transitions, 215 flow. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 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 23:36:18,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:36:18,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 66 [2024-11-07 23:36:18,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:36:18,887 INFO L124 PetriNetUnfolderBase]: 853/1556 cut-off events. [2024-11-07 23:36:18,887 INFO L125 PetriNetUnfolderBase]: For 2004/2094 co-relation queries the response was YES. [2024-11-07 23:36:18,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4206 conditions, 1556 events. 853/1556 cut-off events. For 2004/2094 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 9822 event pairs, 340 based on Foata normal form. 117/1611 useless extension candidates. Maximal degree in co-relation 3282. Up to 752 conditions per place. [2024-11-07 23:36:18,891 INFO L140 encePairwiseOnDemand]: 59/66 looper letters, 0 selfloop transitions, 0 changer transitions 123/123 dead transitions. [2024-11-07 23:36:18,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 123 transitions, 687 flow [2024-11-07 23:36:18,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:36:18,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:36:18,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 264 transitions. [2024-11-07 23:36:18,892 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-07 23:36:18,892 INFO L175 Difference]: Start difference. First operand has 69 places, 58 transitions, 215 flow. Second operand 6 states and 264 transitions. [2024-11-07 23:36:18,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 123 transitions, 687 flow [2024-11-07 23:36:18,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 123 transitions, 669 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-07 23:36:18,896 INFO L231 Difference]: Finished difference. Result has 68 places, 0 transitions, 0 flow [2024-11-07 23:36:18,896 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=68, PETRI_TRANSITIONS=0} [2024-11-07 23:36:18,896 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 9 predicate places. [2024-11-07 23:36:18,896 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 0 transitions, 0 flow [2024-11-07 23:36:18,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 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 23:36:18,898 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2024-11-07 23:36:18,898 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2024-11-07 23:36:18,898 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2024-11-07 23:36:18,898 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2024-11-07 23:36:18,898 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2024-11-07 23:36:18,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2024-11-07 23:36:18,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2024-11-07 23:36:18,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2024-11-07 23:36:18,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2024-11-07 23:36:18,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2024-11-07 23:36:18,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2024-11-07 23:36:18,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2024-11-07 23:36:18,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 26 remaining) [2024-11-07 23:36:18,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2024-11-07 23:36:18,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2024-11-07 23:36:18,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2024-11-07 23:36:18,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2024-11-07 23:36:18,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2024-11-07 23:36:18,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2024-11-07 23:36:18,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2024-11-07 23:36:18,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2024-11-07 23:36:18,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2024-11-07 23:36:18,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2024-11-07 23:36:18,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2024-11-07 23:36:18,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2024-11-07 23:36:18,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2024-11-07 23:36:18,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 23:36:18,900 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:36:18,903 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 23:36:18,903 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 23:36:18,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:36:18 BasicIcfg [2024-11-07 23:36:18,907 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 23:36:18,907 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 23:36:18,907 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 23:36:18,907 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 23:36:18,908 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:36:14" (3/4) ... [2024-11-07 23:36:18,909 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 23:36:18,910 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-07 23:36:18,910 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-07 23:36:18,915 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 67 nodes and edges [2024-11-07 23:36:18,915 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-07 23:36:18,915 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-07 23:36:18,915 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-07 23:36:18,971 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 23:36:18,971 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 23:36:18,971 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 23:36:18,972 INFO L158 Benchmark]: Toolchain (without parser) took 4692.29ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 92.0MB in the beginning and 73.5MB in the end (delta: 18.5MB). Peak memory consumption was 106.0MB. Max. memory is 16.1GB. [2024-11-07 23:36:18,972 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 117.4MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:36:18,973 INFO L158 Benchmark]: CACSL2BoogieTranslator took 151.97ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 80.3MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:36:18,973 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.07ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 78.6MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:36:18,973 INFO L158 Benchmark]: Boogie Preprocessor took 36.29ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 76.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:36:18,973 INFO L158 Benchmark]: RCFGBuilder took 451.94ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 85.7MB in the end (delta: -8.8MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. [2024-11-07 23:36:18,973 INFO L158 Benchmark]: TraceAbstraction took 3956.85ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 85.3MB in the beginning and 77.2MB in the end (delta: 8.1MB). Peak memory consumption was 101.7MB. Max. memory is 16.1GB. [2024-11-07 23:36:18,973 INFO L158 Benchmark]: Witness Printer took 64.62ms. Allocated memory is still 209.7MB. Free memory was 77.2MB in the beginning and 73.5MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:36:18,974 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 117.4MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 151.97ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 80.3MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.07ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 78.6MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.29ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 76.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 451.94ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 85.7MB in the end (delta: -8.8MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3956.85ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 85.3MB in the beginning and 77.2MB in the end (delta: 8.1MB). Peak memory consumption was 101.7MB. Max. memory is 16.1GB. * Witness Printer took 64.62ms. Allocated memory is still 209.7MB. Free memory was 77.2MB in the beginning and 73.5MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: 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 5 procedures, 107 locations, 26 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.9s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1105 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 852 mSDsluCounter, 226 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 135 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1972 IncrementalHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 91 mSDtfsCounter, 1972 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=215occurred in iteration=13, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 488 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-07 23:36:18,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE