./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 3dfcb4860b3021904fb2e25e7c2a428c9bcb0d82c2290cad723458395a0647ea --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:08:25,802 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:08:25,859 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 14:08:25,864 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:08:25,865 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:08:25,889 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:08:25,890 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:08:25,890 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:08:25,891 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:08:25,892 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:08:25,893 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 14:08:25,893 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 14:08:25,893 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:08:25,894 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:08:25,894 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:08:25,894 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:08:25,894 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 14:08:25,895 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:08:25,895 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:08:25,895 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:08:25,896 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:08:25,896 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 14:08:25,896 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 14:08:25,897 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 14:08:25,897 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:08:25,897 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 14:08:25,897 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:08:25,898 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:08:25,898 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:08:25,898 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:08:25,898 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:08:25,899 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:08:25,899 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 14:08:25,899 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 14:08:25,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:08:25,900 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:08:25,900 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 14:08:25,900 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 14:08:25,900 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:08:25,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 14:08:25,901 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 14:08:25,901 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 14:08:25,901 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 14:08:25,901 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 14:08:25,901 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3dfcb4860b3021904fb2e25e7c2a428c9bcb0d82c2290cad723458395a0647ea [2024-11-19 14:08:26,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:08:26,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:08:26,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:08:26,150 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:08:26,150 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:08:26,151 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2024-11-19 14:08:27,495 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:08:27,727 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:08:27,728 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2024-11-19 14:08:27,741 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c30c4145/170f52266b2541e7a0d0e07ee8e0cb3e/FLAG9c174e526 [2024-11-19 14:08:28,086 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c30c4145/170f52266b2541e7a0d0e07ee8e0cb3e [2024-11-19 14:08:28,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:08:28,091 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:08:28,093 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:08:28,093 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:08:28,098 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:08:28,099 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:08:28" (1/1) ... [2024-11-19 14:08:28,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72b142b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:28, skipping insertion in model container [2024-11-19 14:08:28,103 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:08:28" (1/1) ... [2024-11-19 14:08:28,139 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:08:28,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:08:28,485 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:08:28,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:08:28,625 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:08:28,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:28 WrapperNode [2024-11-19 14:08:28,625 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:08:28,626 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:08:28,626 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:08:28,626 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:08:28,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:28" (1/1) ... [2024-11-19 14:08:28,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:28" (1/1) ... [2024-11-19 14:08:28,727 INFO L138 Inliner]: procedures = 27, calls = 68, calls flagged for inlining = 29, calls inlined = 35, statements flattened = 435 [2024-11-19 14:08:28,736 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:08:28,737 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:08:28,737 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:08:28,737 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:08:28,758 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:28" (1/1) ... [2024-11-19 14:08:28,762 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:28" (1/1) ... [2024-11-19 14:08:28,766 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:28" (1/1) ... [2024-11-19 14:08:28,814 INFO L175 MemorySlicer]: Split 24 memory accesses to 4 slices as follows [2, 3, 16, 3]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 6 writes are split as follows [0, 1, 4, 1]. [2024-11-19 14:08:28,814 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:28" (1/1) ... [2024-11-19 14:08:28,814 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:28" (1/1) ... [2024-11-19 14:08:28,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:28" (1/1) ... [2024-11-19 14:08:28,850 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:28" (1/1) ... [2024-11-19 14:08:28,859 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:28" (1/1) ... [2024-11-19 14:08:28,865 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:28" (1/1) ... [2024-11-19 14:08:28,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:08:28,889 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:08:28,889 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:08:28,889 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:08:28,890 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:28" (1/1) ... [2024-11-19 14:08:28,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:08:28,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:08:28,951 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 14:08:28,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 14:08:28,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:08:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 14:08:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 14:08:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 14:08:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 14:08:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 14:08:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 14:08:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 14:08:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 14:08:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 14:08:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 14:08:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 14:08:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 14:08:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 14:08:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 14:08:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 14:08:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 14:08:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 14:08:28,995 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 14:08:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 14:08:28,996 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 14:08:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-19 14:08:28,996 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-19 14:08:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:08:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 14:08:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 14:08:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 14:08:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 14:08:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 14:08:28,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 14:08:28,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:08:28,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:08:29,000 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 14:08:29,109 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:08:29,111 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:08:29,680 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 14:08:29,680 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:08:30,158 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:08:30,158 INFO L316 CfgBuilder]: Removed 9 assume(true) statements. [2024-11-19 14:08:30,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:08:30 BoogieIcfgContainer [2024-11-19 14:08:30,159 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:08:30,160 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 14:08:30,160 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 14:08:30,163 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 14:08:30,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:08:28" (1/3) ... [2024-11-19 14:08:30,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43a0c97a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:08:30, skipping insertion in model container [2024-11-19 14:08:30,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:08:28" (2/3) ... [2024-11-19 14:08:30,164 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43a0c97a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:08:30, skipping insertion in model container [2024-11-19 14:08:30,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:08:30" (3/3) ... [2024-11-19 14:08:30,165 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons-eq.wvr.c [2024-11-19 14:08:30,180 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 14:08:30,180 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-11-19 14:08:30,180 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 14:08:30,259 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-19 14:08:30,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 77 transitions, 175 flow [2024-11-19 14:08:30,328 INFO L124 PetriNetUnfolderBase]: 9/74 cut-off events. [2024-11-19 14:08:30,329 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-19 14:08:30,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 74 events. 9/74 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 219 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2024-11-19 14:08:30,332 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 77 transitions, 175 flow [2024-11-19 14:08:30,334 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 72 transitions, 159 flow [2024-11-19 14:08:30,340 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 14:08:30,346 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;@91b43be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 14:08:30,346 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-19 14:08:30,348 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 14:08:30,349 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-19 14:08:30,349 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 14:08:30,349 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:30,349 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-19 14:08:30,350 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:30,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:30,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1383832, now seen corresponding path program 1 times [2024-11-19 14:08:30,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:30,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420625831] [2024-11-19 14:08:30,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:30,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:30,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:08:30,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:30,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420625831] [2024-11-19 14:08:30,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420625831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:30,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:08:30,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:08:30,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600294011] [2024-11-19 14:08:30,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:30,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:08:30,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:30,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:08:30,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:08:30,619 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 77 [2024-11-19 14:08:30,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 72 transitions, 159 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-19 14:08:30,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:30,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 77 [2024-11-19 14:08:30,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:31,142 INFO L124 PetriNetUnfolderBase]: 993/1459 cut-off events. [2024-11-19 14:08:31,142 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-19 14:08:31,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2950 conditions, 1459 events. 993/1459 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 7721 event pairs, 581 based on Foata normal form. 4/765 useless extension candidates. Maximal degree in co-relation 2759. Up to 1343 conditions per place. [2024-11-19 14:08:31,158 INFO L140 encePairwiseOnDemand]: 55/77 looper letters, 32 selfloop transitions, 12 changer transitions 1/62 dead transitions. [2024-11-19 14:08:31,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 62 transitions, 229 flow [2024-11-19 14:08:31,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:08:31,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:08:31,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 135 transitions. [2024-11-19 14:08:31,169 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4383116883116883 [2024-11-19 14:08:31,171 INFO L175 Difference]: Start difference. First operand has 73 places, 72 transitions, 159 flow. Second operand 4 states and 135 transitions. [2024-11-19 14:08:31,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 62 transitions, 229 flow [2024-11-19 14:08:31,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 62 transitions, 220 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 14:08:31,184 INFO L231 Difference]: Finished difference. Result has 61 places, 61 transitions, 151 flow [2024-11-19 14:08:31,185 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=151, PETRI_PLACES=61, PETRI_TRANSITIONS=61} [2024-11-19 14:08:31,189 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, -12 predicate places. [2024-11-19 14:08:31,191 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 61 transitions, 151 flow [2024-11-19 14:08:31,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-19 14:08:31,191 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:31,191 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-19 14:08:31,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 14:08:31,192 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:31,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:31,193 INFO L85 PathProgramCache]: Analyzing trace with hash 42900194, now seen corresponding path program 1 times [2024-11-19 14:08:31,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:31,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47969279] [2024-11-19 14:08:31,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:31,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:31,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:08:31,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:31,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47969279] [2024-11-19 14:08:31,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47969279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:31,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:08:31,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:08:31,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285245139] [2024-11-19 14:08:31,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:31,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:08:31,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:31,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:08:31,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:08:31,310 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 77 [2024-11-19 14:08:31,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 61 transitions, 151 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-19 14:08:31,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:31,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 77 [2024-11-19 14:08:31,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:31,597 INFO L124 PetriNetUnfolderBase]: 993/1468 cut-off events. [2024-11-19 14:08:31,597 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-11-19 14:08:31,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2956 conditions, 1468 events. 993/1468 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 7816 event pairs, 579 based on Foata normal form. 4/781 useless extension candidates. Maximal degree in co-relation 2858. Up to 1354 conditions per place. [2024-11-19 14:08:31,604 INFO L140 encePairwiseOnDemand]: 59/77 looper letters, 42 selfloop transitions, 14 changer transitions 0/73 dead transitions. [2024-11-19 14:08:31,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 73 transitions, 307 flow [2024-11-19 14:08:31,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:08:31,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:08:31,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 140 transitions. [2024-11-19 14:08:31,607 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2024-11-19 14:08:31,607 INFO L175 Difference]: Start difference. First operand has 61 places, 61 transitions, 151 flow. Second operand 4 states and 140 transitions. [2024-11-19 14:08:31,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 73 transitions, 307 flow [2024-11-19 14:08:31,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 73 transitions, 263 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:08:31,610 INFO L231 Difference]: Finished difference. Result has 63 places, 73 transitions, 239 flow [2024-11-19 14:08:31,610 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=239, PETRI_PLACES=63, PETRI_TRANSITIONS=73} [2024-11-19 14:08:31,611 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, -10 predicate places. [2024-11-19 14:08:31,611 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 73 transitions, 239 flow [2024-11-19 14:08:31,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-19 14:08:31,612 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:31,612 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 14:08:31,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 14:08:31,613 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:31,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:31,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1720422664, now seen corresponding path program 1 times [2024-11-19 14:08:31,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:31,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140158398] [2024-11-19 14:08:31,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:31,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:31,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:31,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:08:31,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:31,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140158398] [2024-11-19 14:08:31,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140158398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:31,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:08:31,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:08:31,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761274922] [2024-11-19 14:08:31,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:31,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:08:31,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:31,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:08:31,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:08:31,753 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 77 [2024-11-19 14:08:31,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 73 transitions, 239 flow. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:08:31,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:31,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 77 [2024-11-19 14:08:31,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:32,158 INFO L124 PetriNetUnfolderBase]: 994/1472 cut-off events. [2024-11-19 14:08:32,159 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-19 14:08:32,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2985 conditions, 1472 events. 994/1472 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 7778 event pairs, 579 based on Foata normal form. 1/783 useless extension candidates. Maximal degree in co-relation 2894. Up to 1362 conditions per place. [2024-11-19 14:08:32,167 INFO L140 encePairwiseOnDemand]: 71/77 looper letters, 52 selfloop transitions, 5 changer transitions 0/76 dead transitions. [2024-11-19 14:08:32,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 76 transitions, 359 flow [2024-11-19 14:08:32,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:08:32,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:08:32,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 151 transitions. [2024-11-19 14:08:32,169 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4902597402597403 [2024-11-19 14:08:32,169 INFO L175 Difference]: Start difference. First operand has 63 places, 73 transitions, 239 flow. Second operand 4 states and 151 transitions. [2024-11-19 14:08:32,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 76 transitions, 359 flow [2024-11-19 14:08:32,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 76 transitions, 359 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 14:08:32,172 INFO L231 Difference]: Finished difference. Result has 68 places, 76 transitions, 271 flow [2024-11-19 14:08:32,172 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=271, PETRI_PLACES=68, PETRI_TRANSITIONS=76} [2024-11-19 14:08:32,172 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, -5 predicate places. [2024-11-19 14:08:32,173 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 76 transitions, 271 flow [2024-11-19 14:08:32,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:08:32,173 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:32,173 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-19 14:08:32,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 14:08:32,173 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:32,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:32,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1859173423, now seen corresponding path program 1 times [2024-11-19 14:08:32,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:32,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715168341] [2024-11-19 14:08:32,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:32,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:32,274 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:08:32,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:32,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715168341] [2024-11-19 14:08:32,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715168341] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:08:32,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216247744] [2024-11-19 14:08:32,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:32,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:32,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:08:32,279 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:08:32,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 14:08:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:32,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:08:32,398 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:08:32,439 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:08:32,440 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:08:32,471 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:08:32,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216247744] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:08:32,472 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:08:32,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-19 14:08:32,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718677919] [2024-11-19 14:08:32,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:08:32,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 14:08:32,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:32,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 14:08:32,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-19 14:08:32,504 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 77 [2024-11-19 14:08:32,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 76 transitions, 271 flow. Second operand has 10 states, 10 states have (on average 21.0) internal successors, (210), 10 states have internal predecessors, (210), 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) [2024-11-19 14:08:32,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:32,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 77 [2024-11-19 14:08:32,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:32,836 INFO L124 PetriNetUnfolderBase]: 1006/1520 cut-off events. [2024-11-19 14:08:32,837 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2024-11-19 14:08:32,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3132 conditions, 1520 events. 1006/1520 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 8178 event pairs, 579 based on Foata normal form. 0/826 useless extension candidates. Maximal degree in co-relation 3101. Up to 1363 conditions per place. [2024-11-19 14:08:32,844 INFO L140 encePairwiseOnDemand]: 59/77 looper letters, 45 selfloop transitions, 50 changer transitions 0/112 dead transitions. [2024-11-19 14:08:32,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 112 transitions, 626 flow [2024-11-19 14:08:32,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 14:08:32,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 14:08:32,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 304 transitions. [2024-11-19 14:08:32,847 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3948051948051948 [2024-11-19 14:08:32,847 INFO L175 Difference]: Start difference. First operand has 68 places, 76 transitions, 271 flow. Second operand 10 states and 304 transitions. [2024-11-19 14:08:32,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 112 transitions, 626 flow [2024-11-19 14:08:32,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 112 transitions, 619 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:08:32,851 INFO L231 Difference]: Finished difference. Result has 79 places, 112 transitions, 597 flow [2024-11-19 14:08:32,852 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=597, PETRI_PLACES=79, PETRI_TRANSITIONS=112} [2024-11-19 14:08:32,853 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 6 predicate places. [2024-11-19 14:08:32,853 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 112 transitions, 597 flow [2024-11-19 14:08:32,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.0) internal successors, (210), 10 states have internal predecessors, (210), 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) [2024-11-19 14:08:32,854 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:32,854 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:32,869 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 14:08:33,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:33,055 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:33,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:33,056 INFO L85 PathProgramCache]: Analyzing trace with hash 236349530, now seen corresponding path program 1 times [2024-11-19 14:08:33,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:33,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225710410] [2024-11-19 14:08:33,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:33,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:33,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:08:33,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:33,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225710410] [2024-11-19 14:08:33,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225710410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:33,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:08:33,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:08:33,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90595016] [2024-11-19 14:08:33,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:33,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:08:33,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:33,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:08:33,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:08:33,158 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 77 [2024-11-19 14:08:33,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 112 transitions, 597 flow. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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) [2024-11-19 14:08:33,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:33,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 77 [2024-11-19 14:08:33,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:33,418 INFO L124 PetriNetUnfolderBase]: 1012/1545 cut-off events. [2024-11-19 14:08:33,419 INFO L125 PetriNetUnfolderBase]: For 167/167 co-relation queries the response was YES. [2024-11-19 14:08:33,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3301 conditions, 1545 events. 1012/1545 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 8439 event pairs, 579 based on Foata normal form. 1/858 useless extension candidates. Maximal degree in co-relation 3268. Up to 1401 conditions per place. [2024-11-19 14:08:33,426 INFO L140 encePairwiseOnDemand]: 71/77 looper letters, 102 selfloop transitions, 9 changer transitions 0/130 dead transitions. [2024-11-19 14:08:33,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 130 transitions, 933 flow [2024-11-19 14:08:33,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:08:33,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:08:33,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 154 transitions. [2024-11-19 14:08:33,428 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-19 14:08:33,428 INFO L175 Difference]: Start difference. First operand has 79 places, 112 transitions, 597 flow. Second operand 4 states and 154 transitions. [2024-11-19 14:08:33,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 130 transitions, 933 flow [2024-11-19 14:08:33,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 130 transitions, 772 flow, removed 47 selfloop flow, removed 4 redundant places. [2024-11-19 14:08:33,434 INFO L231 Difference]: Finished difference. Result has 80 places, 119 transitions, 544 flow [2024-11-19 14:08:33,434 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=544, PETRI_PLACES=80, PETRI_TRANSITIONS=119} [2024-11-19 14:08:33,435 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 7 predicate places. [2024-11-19 14:08:33,436 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 119 transitions, 544 flow [2024-11-19 14:08:33,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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) [2024-11-19 14:08:33,436 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:33,437 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:33,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 14:08:33,437 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:33,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:33,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1265430579, now seen corresponding path program 1 times [2024-11-19 14:08:33,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:33,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77691627] [2024-11-19 14:08:33,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:33,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:33,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:08:33,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:33,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77691627] [2024-11-19 14:08:33,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77691627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:33,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:08:33,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 14:08:33,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089562348] [2024-11-19 14:08:33,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:33,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:08:33,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:33,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:08:33,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:08:33,583 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 77 [2024-11-19 14:08:33,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 119 transitions, 544 flow. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 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) [2024-11-19 14:08:33,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:33,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 77 [2024-11-19 14:08:33,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:33,945 INFO L124 PetriNetUnfolderBase]: 1409/2292 cut-off events. [2024-11-19 14:08:33,945 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2024-11-19 14:08:33,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4837 conditions, 2292 events. 1409/2292 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 14737 event pairs, 953 based on Foata normal form. 33/1414 useless extension candidates. Maximal degree in co-relation 4802. Up to 1410 conditions per place. [2024-11-19 14:08:33,955 INFO L140 encePairwiseOnDemand]: 69/77 looper letters, 144 selfloop transitions, 13 changer transitions 0/178 dead transitions. [2024-11-19 14:08:33,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 178 transitions, 1134 flow [2024-11-19 14:08:33,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:08:33,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:08:33,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 214 transitions. [2024-11-19 14:08:33,957 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5558441558441558 [2024-11-19 14:08:33,957 INFO L175 Difference]: Start difference. First operand has 80 places, 119 transitions, 544 flow. Second operand 5 states and 214 transitions. [2024-11-19 14:08:33,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 178 transitions, 1134 flow [2024-11-19 14:08:33,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 178 transitions, 1127 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:08:33,962 INFO L231 Difference]: Finished difference. Result has 85 places, 125 transitions, 634 flow [2024-11-19 14:08:33,962 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=634, PETRI_PLACES=85, PETRI_TRANSITIONS=125} [2024-11-19 14:08:33,963 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 12 predicate places. [2024-11-19 14:08:33,964 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 125 transitions, 634 flow [2024-11-19 14:08:33,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 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) [2024-11-19 14:08:33,964 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:33,965 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:33,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 14:08:33,965 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:33,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:33,965 INFO L85 PathProgramCache]: Analyzing trace with hash -501156150, now seen corresponding path program 1 times [2024-11-19 14:08:33,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:33,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202136843] [2024-11-19 14:08:33,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:33,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:34,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:08:34,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:34,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202136843] [2024-11-19 14:08:34,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202136843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:34,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:08:34,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:08:34,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787746799] [2024-11-19 14:08:34,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:34,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:08:34,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:34,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:08:34,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:08:34,032 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 77 [2024-11-19 14:08:34,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 125 transitions, 634 flow. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-19 14:08:34,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:34,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 77 [2024-11-19 14:08:34,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:34,584 INFO L124 PetriNetUnfolderBase]: 1349/2084 cut-off events. [2024-11-19 14:08:34,584 INFO L125 PetriNetUnfolderBase]: For 316/316 co-relation queries the response was YES. [2024-11-19 14:08:34,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4691 conditions, 2084 events. 1349/2084 cut-off events. For 316/316 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 11190 event pairs, 327 based on Foata normal form. 26/1572 useless extension candidates. Maximal degree in co-relation 4653. Up to 1554 conditions per place. [2024-11-19 14:08:34,595 INFO L140 encePairwiseOnDemand]: 69/77 looper letters, 112 selfloop transitions, 2 changer transitions 2/137 dead transitions. [2024-11-19 14:08:34,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 137 transitions, 896 flow [2024-11-19 14:08:34,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:08:34,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:08:34,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 142 transitions. [2024-11-19 14:08:34,596 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6147186147186147 [2024-11-19 14:08:34,597 INFO L175 Difference]: Start difference. First operand has 85 places, 125 transitions, 634 flow. Second operand 3 states and 142 transitions. [2024-11-19 14:08:34,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 137 transitions, 896 flow [2024-11-19 14:08:34,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 137 transitions, 888 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-19 14:08:34,601 INFO L231 Difference]: Finished difference. Result has 87 places, 126 transitions, 648 flow [2024-11-19 14:08:34,601 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=648, PETRI_PLACES=87, PETRI_TRANSITIONS=126} [2024-11-19 14:08:34,601 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 14 predicate places. [2024-11-19 14:08:34,602 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 126 transitions, 648 flow [2024-11-19 14:08:34,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-19 14:08:34,602 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:34,602 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:34,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 14:08:34,602 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:34,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:34,603 INFO L85 PathProgramCache]: Analyzing trace with hash -501156149, now seen corresponding path program 1 times [2024-11-19 14:08:34,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:34,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977915670] [2024-11-19 14:08:34,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:34,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:34,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:08:34,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:34,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977915670] [2024-11-19 14:08:34,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977915670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:34,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:08:34,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:08:34,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492054295] [2024-11-19 14:08:34,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:34,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:08:34,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:34,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:08:34,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:08:34,655 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 77 [2024-11-19 14:08:34,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 126 transitions, 648 flow. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-19 14:08:34,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:34,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 77 [2024-11-19 14:08:34,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:34,927 INFO L124 PetriNetUnfolderBase]: 1300/1995 cut-off events. [2024-11-19 14:08:34,928 INFO L125 PetriNetUnfolderBase]: For 480/488 co-relation queries the response was YES. [2024-11-19 14:08:34,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5173 conditions, 1995 events. 1300/1995 cut-off events. For 480/488 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 10408 event pairs, 284 based on Foata normal form. 30/1568 useless extension candidates. Maximal degree in co-relation 5134. Up to 1554 conditions per place. [2024-11-19 14:08:34,941 INFO L140 encePairwiseOnDemand]: 74/77 looper letters, 111 selfloop transitions, 2 changer transitions 2/136 dead transitions. [2024-11-19 14:08:34,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 136 transitions, 904 flow [2024-11-19 14:08:34,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:08:34,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:08:34,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 136 transitions. [2024-11-19 14:08:34,943 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5887445887445888 [2024-11-19 14:08:34,943 INFO L175 Difference]: Start difference. First operand has 87 places, 126 transitions, 648 flow. Second operand 3 states and 136 transitions. [2024-11-19 14:08:34,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 136 transitions, 904 flow [2024-11-19 14:08:34,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 136 transitions, 902 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:08:34,947 INFO L231 Difference]: Finished difference. Result has 89 places, 126 transitions, 654 flow [2024-11-19 14:08:34,947 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=646, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=654, PETRI_PLACES=89, PETRI_TRANSITIONS=126} [2024-11-19 14:08:34,947 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 16 predicate places. [2024-11-19 14:08:34,948 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 126 transitions, 654 flow [2024-11-19 14:08:34,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-19 14:08:34,948 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:34,954 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:34,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 14:08:34,954 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:34,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:34,954 INFO L85 PathProgramCache]: Analyzing trace with hash 628565579, now seen corresponding path program 1 times [2024-11-19 14:08:34,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:34,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479686629] [2024-11-19 14:08:34,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:34,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:34,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:35,033 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:08:35,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:35,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479686629] [2024-11-19 14:08:35,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479686629] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:08:35,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139041344] [2024-11-19 14:08:35,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:35,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:35,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:08:35,038 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:08:35,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 14:08:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:35,159 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:08:35,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:08:35,177 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:08:35,177 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:08:35,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139041344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:35,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:08:35,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-19 14:08:35,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503982775] [2024-11-19 14:08:35,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:35,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:08:35,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:35,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:08:35,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 14:08:35,184 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 77 [2024-11-19 14:08:35,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 126 transitions, 654 flow. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 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) [2024-11-19 14:08:35,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:35,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 77 [2024-11-19 14:08:35,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:35,458 INFO L124 PetriNetUnfolderBase]: 991/1665 cut-off events. [2024-11-19 14:08:35,458 INFO L125 PetriNetUnfolderBase]: For 518/518 co-relation queries the response was YES. [2024-11-19 14:08:35,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4369 conditions, 1665 events. 991/1665 cut-off events. For 518/518 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 10051 event pairs, 721 based on Foata normal form. 1/1338 useless extension candidates. Maximal degree in co-relation 4330. Up to 1519 conditions per place. [2024-11-19 14:08:35,468 INFO L140 encePairwiseOnDemand]: 72/77 looper letters, 89 selfloop transitions, 17 changer transitions 0/125 dead transitions. [2024-11-19 14:08:35,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 125 transitions, 862 flow [2024-11-19 14:08:35,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:08:35,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:08:35,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 201 transitions. [2024-11-19 14:08:35,469 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43506493506493504 [2024-11-19 14:08:35,469 INFO L175 Difference]: Start difference. First operand has 89 places, 126 transitions, 654 flow. Second operand 6 states and 201 transitions. [2024-11-19 14:08:35,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 125 transitions, 862 flow [2024-11-19 14:08:35,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 125 transitions, 858 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:08:35,473 INFO L231 Difference]: Finished difference. Result has 91 places, 125 transitions, 680 flow [2024-11-19 14:08:35,473 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=646, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=680, PETRI_PLACES=91, PETRI_TRANSITIONS=125} [2024-11-19 14:08:35,473 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 18 predicate places. [2024-11-19 14:08:35,474 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 125 transitions, 680 flow [2024-11-19 14:08:35,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 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) [2024-11-19 14:08:35,474 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:35,474 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:35,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 14:08:35,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-19 14:08:35,675 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:35,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:35,675 INFO L85 PathProgramCache]: Analyzing trace with hash -736677857, now seen corresponding path program 1 times [2024-11-19 14:08:35,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:35,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881203059] [2024-11-19 14:08:35,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:35,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:35,758 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:08:35,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:35,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881203059] [2024-11-19 14:08:35,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881203059] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:08:35,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50855245] [2024-11-19 14:08:35,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:35,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:35,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:08:35,763 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:08:35,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 14:08:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:35,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:08:35,869 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:08:35,887 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:08:35,887 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:08:35,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50855245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:35,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:08:35,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-19 14:08:35,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728932656] [2024-11-19 14:08:35,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:35,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:08:35,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:35,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:08:35,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 14:08:35,893 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 77 [2024-11-19 14:08:35,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 125 transitions, 680 flow. Second operand has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 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) [2024-11-19 14:08:35,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:35,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 77 [2024-11-19 14:08:35,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:36,191 INFO L124 PetriNetUnfolderBase]: 991/1663 cut-off events. [2024-11-19 14:08:36,191 INFO L125 PetriNetUnfolderBase]: For 488/488 co-relation queries the response was YES. [2024-11-19 14:08:36,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4352 conditions, 1663 events. 991/1663 cut-off events. For 488/488 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 10107 event pairs, 721 based on Foata normal form. 2/1336 useless extension candidates. Maximal degree in co-relation 4309. Up to 1462 conditions per place. [2024-11-19 14:08:36,203 INFO L140 encePairwiseOnDemand]: 72/77 looper letters, 100 selfloop transitions, 17 changer transitions 0/135 dead transitions. [2024-11-19 14:08:36,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 135 transitions, 966 flow [2024-11-19 14:08:36,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:08:36,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:08:36,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 204 transitions. [2024-11-19 14:08:36,204 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44155844155844154 [2024-11-19 14:08:36,204 INFO L175 Difference]: Start difference. First operand has 91 places, 125 transitions, 680 flow. Second operand 6 states and 204 transitions. [2024-11-19 14:08:36,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 135 transitions, 966 flow [2024-11-19 14:08:36,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 135 transitions, 904 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-19 14:08:36,208 INFO L231 Difference]: Finished difference. Result has 90 places, 124 transitions, 648 flow [2024-11-19 14:08:36,209 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=648, PETRI_PLACES=90, PETRI_TRANSITIONS=124} [2024-11-19 14:08:36,209 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 17 predicate places. [2024-11-19 14:08:36,210 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 124 transitions, 648 flow [2024-11-19 14:08:36,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 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) [2024-11-19 14:08:36,210 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:36,210 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:36,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 14:08:36,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:36,411 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:36,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:36,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1989302111, now seen corresponding path program 1 times [2024-11-19 14:08:36,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:36,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498516029] [2024-11-19 14:08:36,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:36,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:36,488 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:08:36,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:36,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498516029] [2024-11-19 14:08:36,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498516029] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:08:36,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096963186] [2024-11-19 14:08:36,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:36,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:36,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:08:36,492 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:08:36,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 14:08:36,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:36,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:08:36,596 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:08:36,618 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:08:36,618 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:08:36,648 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:08:36,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096963186] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:08:36,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:08:36,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-19 14:08:36,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550064105] [2024-11-19 14:08:36,649 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:08:36,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 14:08:36,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:36,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 14:08:36,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-19 14:08:36,663 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 77 [2024-11-19 14:08:36,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 124 transitions, 648 flow. Second operand has 12 states, 12 states have (on average 27.5) internal successors, (330), 12 states have internal predecessors, (330), 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) [2024-11-19 14:08:36,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:36,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 77 [2024-11-19 14:08:36,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:36,969 INFO L124 PetriNetUnfolderBase]: 994/1675 cut-off events. [2024-11-19 14:08:36,970 INFO L125 PetriNetUnfolderBase]: For 501/501 co-relation queries the response was YES. [2024-11-19 14:08:36,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4383 conditions, 1675 events. 994/1675 cut-off events. For 501/501 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 10107 event pairs, 721 based on Foata normal form. 3/1351 useless extension candidates. Maximal degree in co-relation 4313. Up to 1526 conditions per place. [2024-11-19 14:08:36,978 INFO L140 encePairwiseOnDemand]: 72/77 looper letters, 92 selfloop transitions, 23 changer transitions 0/133 dead transitions. [2024-11-19 14:08:36,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 133 transitions, 920 flow [2024-11-19 14:08:36,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 14:08:36,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 14:08:36,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 316 transitions. [2024-11-19 14:08:36,980 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4103896103896104 [2024-11-19 14:08:36,980 INFO L175 Difference]: Start difference. First operand has 90 places, 124 transitions, 648 flow. Second operand 10 states and 316 transitions. [2024-11-19 14:08:36,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 133 transitions, 920 flow [2024-11-19 14:08:36,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 133 transitions, 870 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-19 14:08:36,984 INFO L231 Difference]: Finished difference. Result has 98 places, 133 transitions, 704 flow [2024-11-19 14:08:36,984 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=607, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=704, PETRI_PLACES=98, PETRI_TRANSITIONS=133} [2024-11-19 14:08:36,985 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 25 predicate places. [2024-11-19 14:08:36,985 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 133 transitions, 704 flow [2024-11-19 14:08:36,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 27.5) internal successors, (330), 12 states have internal predecessors, (330), 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) [2024-11-19 14:08:36,985 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:36,985 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:37,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 14:08:37,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:37,186 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:37,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:37,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1362175725, now seen corresponding path program 1 times [2024-11-19 14:08:37,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:37,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535398090] [2024-11-19 14:08:37,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:37,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:37,316 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:08:37,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:37,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535398090] [2024-11-19 14:08:37,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535398090] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:08:37,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285769572] [2024-11-19 14:08:37,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:37,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:37,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:08:37,318 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:08:37,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 14:08:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:37,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:08:37,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:08:37,452 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:08:37,453 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:08:37,496 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:08:37,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285769572] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:08:37,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:08:37,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-19 14:08:37,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615408604] [2024-11-19 14:08:37,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:08:37,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 14:08:37,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:37,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 14:08:37,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-19 14:08:37,504 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 77 [2024-11-19 14:08:37,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 133 transitions, 704 flow. Second operand has 12 states, 12 states have (on average 27.833333333333332) internal successors, (334), 12 states have internal predecessors, (334), 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) [2024-11-19 14:08:37,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:37,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 77 [2024-11-19 14:08:37,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:37,765 INFO L124 PetriNetUnfolderBase]: 1030/1825 cut-off events. [2024-11-19 14:08:37,766 INFO L125 PetriNetUnfolderBase]: For 607/607 co-relation queries the response was YES. [2024-11-19 14:08:37,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4830 conditions, 1825 events. 1030/1825 cut-off events. For 607/607 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 11292 event pairs, 721 based on Foata normal form. 6/1503 useless extension candidates. Maximal degree in co-relation 4785. Up to 1512 conditions per place. [2024-11-19 14:08:37,773 INFO L140 encePairwiseOnDemand]: 72/77 looper letters, 146 selfloop transitions, 34 changer transitions 0/198 dead transitions. [2024-11-19 14:08:37,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 198 transitions, 1408 flow [2024-11-19 14:08:37,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 14:08:37,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 14:08:37,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 328 transitions. [2024-11-19 14:08:37,775 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42597402597402595 [2024-11-19 14:08:37,775 INFO L175 Difference]: Start difference. First operand has 98 places, 133 transitions, 704 flow. Second operand 10 states and 328 transitions. [2024-11-19 14:08:37,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 198 transitions, 1408 flow [2024-11-19 14:08:37,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 198 transitions, 1387 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-19 14:08:37,780 INFO L231 Difference]: Finished difference. Result has 108 places, 154 transitions, 909 flow [2024-11-19 14:08:37,780 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=909, PETRI_PLACES=108, PETRI_TRANSITIONS=154} [2024-11-19 14:08:37,781 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 35 predicate places. [2024-11-19 14:08:37,781 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 154 transitions, 909 flow [2024-11-19 14:08:37,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 27.833333333333332) internal successors, (334), 12 states have internal predecessors, (334), 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) [2024-11-19 14:08:37,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:37,781 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-19 14:08:37,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 14:08:37,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-19 14:08:37,985 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:37,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:37,985 INFO L85 PathProgramCache]: Analyzing trace with hash 66792994, now seen corresponding path program 2 times [2024-11-19 14:08:37,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:37,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331504972] [2024-11-19 14:08:37,986 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:08:37,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:37,996 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:08:37,997 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:08:38,021 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 14:08:38,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:38,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331504972] [2024-11-19 14:08:38,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331504972] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:08:38,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612324652] [2024-11-19 14:08:38,022 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:08:38,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:38,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:08:38,024 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:08:38,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 14:08:38,110 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:08:38,111 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:08:38,112 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 14:08:38,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:08:38,132 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 14:08:38,132 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:08:38,154 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 14:08:38,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612324652] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:08:38,154 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:08:38,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-19 14:08:38,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517585438] [2024-11-19 14:08:38,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:08:38,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:08:38,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:38,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:08:38,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:08:38,170 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 77 [2024-11-19 14:08:38,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 154 transitions, 909 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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) [2024-11-19 14:08:38,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:38,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 77 [2024-11-19 14:08:38,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:38,481 INFO L124 PetriNetUnfolderBase]: 1030/1824 cut-off events. [2024-11-19 14:08:38,482 INFO L125 PetriNetUnfolderBase]: For 805/805 co-relation queries the response was YES. [2024-11-19 14:08:38,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4914 conditions, 1824 events. 1030/1824 cut-off events. For 805/805 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 11263 event pairs, 721 based on Foata normal form. 1/1498 useless extension candidates. Maximal degree in co-relation 4865. Up to 1652 conditions per place. [2024-11-19 14:08:38,490 INFO L140 encePairwiseOnDemand]: 72/77 looper letters, 122 selfloop transitions, 16 changer transitions 0/153 dead transitions. [2024-11-19 14:08:38,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 153 transitions, 1175 flow [2024-11-19 14:08:38,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:08:38,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:08:38,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 124 transitions. [2024-11-19 14:08:38,491 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4025974025974026 [2024-11-19 14:08:38,491 INFO L175 Difference]: Start difference. First operand has 108 places, 154 transitions, 909 flow. Second operand 4 states and 124 transitions. [2024-11-19 14:08:38,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 153 transitions, 1175 flow [2024-11-19 14:08:38,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 153 transitions, 1151 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-19 14:08:38,497 INFO L231 Difference]: Finished difference. Result has 108 places, 153 transitions, 907 flow [2024-11-19 14:08:38,497 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=875, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=907, PETRI_PLACES=108, PETRI_TRANSITIONS=153} [2024-11-19 14:08:38,498 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 35 predicate places. [2024-11-19 14:08:38,498 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 153 transitions, 907 flow [2024-11-19 14:08:38,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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) [2024-11-19 14:08:38,498 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:38,498 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:38,514 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 14:08:38,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:38,703 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:38,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:38,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1462387143, now seen corresponding path program 1 times [2024-11-19 14:08:38,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:38,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122205226] [2024-11-19 14:08:38,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:38,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:38,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:08:38,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:38,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122205226] [2024-11-19 14:08:38,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122205226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:38,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:08:38,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:08:38,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116975362] [2024-11-19 14:08:38,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:38,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:08:38,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:38,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:08:38,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:08:38,806 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 77 [2024-11-19 14:08:38,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 153 transitions, 907 flow. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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) [2024-11-19 14:08:38,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:38,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 77 [2024-11-19 14:08:38,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:39,088 INFO L124 PetriNetUnfolderBase]: 1170/2311 cut-off events. [2024-11-19 14:08:39,088 INFO L125 PetriNetUnfolderBase]: For 1151/1151 co-relation queries the response was YES. [2024-11-19 14:08:39,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6300 conditions, 2311 events. 1170/2311 cut-off events. For 1151/1151 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 15416 event pairs, 783 based on Foata normal form. 32/2038 useless extension candidates. Maximal degree in co-relation 6224. Up to 1647 conditions per place. [2024-11-19 14:08:39,097 INFO L140 encePairwiseOnDemand]: 72/77 looper letters, 224 selfloop transitions, 3 changer transitions 15/260 dead transitions. [2024-11-19 14:08:39,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 260 transitions, 2055 flow [2024-11-19 14:08:39,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:08:39,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:08:39,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 182 transitions. [2024-11-19 14:08:39,098 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5909090909090909 [2024-11-19 14:08:39,098 INFO L175 Difference]: Start difference. First operand has 108 places, 153 transitions, 907 flow. Second operand 4 states and 182 transitions. [2024-11-19 14:08:39,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 260 transitions, 2055 flow [2024-11-19 14:08:39,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 260 transitions, 2023 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:08:39,105 INFO L231 Difference]: Finished difference. Result has 109 places, 153 transitions, 886 flow [2024-11-19 14:08:39,105 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=875, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=886, PETRI_PLACES=109, PETRI_TRANSITIONS=153} [2024-11-19 14:08:39,106 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 36 predicate places. [2024-11-19 14:08:39,106 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 153 transitions, 886 flow [2024-11-19 14:08:39,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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) [2024-11-19 14:08:39,106 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:39,106 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1] [2024-11-19 14:08:39,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 14:08:39,106 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:39,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:39,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1529239562, now seen corresponding path program 1 times [2024-11-19 14:08:39,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:39,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152897554] [2024-11-19 14:08:39,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:39,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:39,227 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:08:39,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:39,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152897554] [2024-11-19 14:08:39,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152897554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:08:39,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181112631] [2024-11-19 14:08:39,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:39,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:39,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:08:39,230 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:08:39,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 14:08:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:39,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-19 14:08:39,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:08:39,378 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:08:39,378 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:08:39,487 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:08:39,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181112631] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:08:39,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:08:39,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-11-19 14:08:39,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441526626] [2024-11-19 14:08:39,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:08:39,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-19 14:08:39,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:39,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-19 14:08:39,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-11-19 14:08:39,543 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 77 [2024-11-19 14:08:39,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 153 transitions, 886 flow. Second operand has 24 states, 24 states have (on average 21.083333333333332) internal successors, (506), 24 states have internal predecessors, (506), 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) [2024-11-19 14:08:39,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:39,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 77 [2024-11-19 14:08:39,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:40,331 INFO L124 PetriNetUnfolderBase]: 1332/2959 cut-off events. [2024-11-19 14:08:40,331 INFO L125 PetriNetUnfolderBase]: For 3802/3802 co-relation queries the response was YES. [2024-11-19 14:08:40,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8583 conditions, 2959 events. 1332/2959 cut-off events. For 3802/3802 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 20265 event pairs, 783 based on Foata normal form. 156/2753 useless extension candidates. Maximal degree in co-relation 8506. Up to 1962 conditions per place. [2024-11-19 14:08:40,345 INFO L140 encePairwiseOnDemand]: 60/77 looper letters, 68 selfloop transitions, 172 changer transitions 0/255 dead transitions. [2024-11-19 14:08:40,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 255 transitions, 2020 flow [2024-11-19 14:08:40,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-19 14:08:40,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-19 14:08:40,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 621 transitions. [2024-11-19 14:08:40,350 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3665879574970484 [2024-11-19 14:08:40,350 INFO L175 Difference]: Start difference. First operand has 109 places, 153 transitions, 886 flow. Second operand 22 states and 621 transitions. [2024-11-19 14:08:40,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 255 transitions, 2020 flow [2024-11-19 14:08:40,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 255 transitions, 2016 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-19 14:08:40,363 INFO L231 Difference]: Finished difference. Result has 135 places, 255 transitions, 1994 flow [2024-11-19 14:08:40,363 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1994, PETRI_PLACES=135, PETRI_TRANSITIONS=255} [2024-11-19 14:08:40,363 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 62 predicate places. [2024-11-19 14:08:40,363 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 255 transitions, 1994 flow [2024-11-19 14:08:40,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 21.083333333333332) internal successors, (506), 24 states have internal predecessors, (506), 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) [2024-11-19 14:08:40,364 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:40,364 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:40,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 14:08:40,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:40,565 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:40,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:40,565 INFO L85 PathProgramCache]: Analyzing trace with hash -267552600, now seen corresponding path program 1 times [2024-11-19 14:08:40,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:40,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654512191] [2024-11-19 14:08:40,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:40,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:40,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:08:40,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:40,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654512191] [2024-11-19 14:08:40,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654512191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:40,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:08:40,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:08:40,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483714164] [2024-11-19 14:08:40,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:40,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:08:40,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:40,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:08:40,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:08:40,659 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 77 [2024-11-19 14:08:40,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 255 transitions, 1994 flow. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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) [2024-11-19 14:08:40,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:40,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 77 [2024-11-19 14:08:40,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:41,125 INFO L124 PetriNetUnfolderBase]: 1650/3611 cut-off events. [2024-11-19 14:08:41,125 INFO L125 PetriNetUnfolderBase]: For 4286/4286 co-relation queries the response was YES. [2024-11-19 14:08:41,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11277 conditions, 3611 events. 1650/3611 cut-off events. For 4286/4286 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 26167 event pairs, 1091 based on Foata normal form. 82/3314 useless extension candidates. Maximal degree in co-relation 11194. Up to 2351 conditions per place. [2024-11-19 14:08:41,142 INFO L140 encePairwiseOnDemand]: 70/77 looper letters, 268 selfloop transitions, 8 changer transitions 2/296 dead transitions. [2024-11-19 14:08:41,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 296 transitions, 2782 flow [2024-11-19 14:08:41,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:08:41,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:08:41,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 179 transitions. [2024-11-19 14:08:41,145 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5811688311688312 [2024-11-19 14:08:41,145 INFO L175 Difference]: Start difference. First operand has 135 places, 255 transitions, 1994 flow. Second operand 4 states and 179 transitions. [2024-11-19 14:08:41,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 296 transitions, 2782 flow [2024-11-19 14:08:41,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 296 transitions, 2267 flow, removed 149 selfloop flow, removed 10 redundant places. [2024-11-19 14:08:41,165 INFO L231 Difference]: Finished difference. Result has 129 places, 255 transitions, 1564 flow [2024-11-19 14:08:41,165 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=1539, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1564, PETRI_PLACES=129, PETRI_TRANSITIONS=255} [2024-11-19 14:08:41,166 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 56 predicate places. [2024-11-19 14:08:41,166 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 255 transitions, 1564 flow [2024-11-19 14:08:41,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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) [2024-11-19 14:08:41,166 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:41,166 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:41,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 14:08:41,166 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:41,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:41,167 INFO L85 PathProgramCache]: Analyzing trace with hash -371542488, now seen corresponding path program 1 times [2024-11-19 14:08:41,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:41,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286142155] [2024-11-19 14:08:41,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:41,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:41,291 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:08:41,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:41,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286142155] [2024-11-19 14:08:41,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286142155] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:08:41,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225924472] [2024-11-19 14:08:41,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:41,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:41,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:08:41,295 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:08:41,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 14:08:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:41,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 14:08:41,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:08:41,446 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:08:41,446 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:08:41,538 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:08:41,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225924472] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-19 14:08:41,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-19 14:08:41,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 9 [2024-11-19 14:08:41,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475225043] [2024-11-19 14:08:41,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:41,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:08:41,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:41,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:08:41,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-19 14:08:41,540 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 77 [2024-11-19 14:08:41,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 255 transitions, 1564 flow. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 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) [2024-11-19 14:08:41,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:41,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 77 [2024-11-19 14:08:41,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:42,108 INFO L124 PetriNetUnfolderBase]: 1648/3609 cut-off events. [2024-11-19 14:08:42,108 INFO L125 PetriNetUnfolderBase]: For 3281/3281 co-relation queries the response was YES. [2024-11-19 14:08:42,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10561 conditions, 3609 events. 1648/3609 cut-off events. For 3281/3281 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 25958 event pairs, 1091 based on Foata normal form. 2/3229 useless extension candidates. Maximal degree in co-relation 10475. Up to 2228 conditions per place. [2024-11-19 14:08:42,127 INFO L140 encePairwiseOnDemand]: 70/77 looper letters, 323 selfloop transitions, 33 changer transitions 4/378 dead transitions. [2024-11-19 14:08:42,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 378 transitions, 3075 flow [2024-11-19 14:08:42,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:08:42,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:08:42,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 208 transitions. [2024-11-19 14:08:42,128 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5402597402597402 [2024-11-19 14:08:42,129 INFO L175 Difference]: Start difference. First operand has 129 places, 255 transitions, 1564 flow. Second operand 5 states and 208 transitions. [2024-11-19 14:08:42,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 378 transitions, 3075 flow [2024-11-19 14:08:42,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 378 transitions, 3059 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:08:42,146 INFO L231 Difference]: Finished difference. Result has 131 places, 254 transitions, 1608 flow [2024-11-19 14:08:42,146 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=1542, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1608, PETRI_PLACES=131, PETRI_TRANSITIONS=254} [2024-11-19 14:08:42,146 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 58 predicate places. [2024-11-19 14:08:42,146 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 254 transitions, 1608 flow [2024-11-19 14:08:42,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 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) [2024-11-19 14:08:42,147 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:42,147 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:42,160 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-19 14:08:42,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-19 14:08:42,351 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:42,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:42,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1186021678, now seen corresponding path program 2 times [2024-11-19 14:08:42,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:42,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363448074] [2024-11-19 14:08:42,351 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:08:42,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:42,366 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:08:42,367 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:08:42,484 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-19 14:08:42,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:42,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363448074] [2024-11-19 14:08:42,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363448074] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:08:42,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145253347] [2024-11-19 14:08:42,485 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:08:42,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:42,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:08:42,488 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:08:42,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 14:08:42,605 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:08:42,605 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:08:42,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 14:08:42,608 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:08:42,634 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-19 14:08:42,635 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:08:42,668 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-19 14:08:42,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145253347] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:08:42,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:08:42,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 4 [2024-11-19 14:08:42,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335249912] [2024-11-19 14:08:42,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:08:42,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:08:42,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:42,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:08:42,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:08:42,676 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 77 [2024-11-19 14:08:42,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 254 transitions, 1608 flow. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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) [2024-11-19 14:08:42,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:42,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 77 [2024-11-19 14:08:42,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:43,257 INFO L124 PetriNetUnfolderBase]: 1648/3607 cut-off events. [2024-11-19 14:08:43,258 INFO L125 PetriNetUnfolderBase]: For 3340/3340 co-relation queries the response was YES. [2024-11-19 14:08:43,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10592 conditions, 3607 events. 1648/3607 cut-off events. For 3340/3340 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 25896 event pairs, 1091 based on Foata normal form. 2/3180 useless extension candidates. Maximal degree in co-relation 10510. Up to 2961 conditions per place. [2024-11-19 14:08:43,278 INFO L140 encePairwiseOnDemand]: 69/77 looper letters, 176 selfloop transitions, 60 changer transitions 0/253 dead transitions. [2024-11-19 14:08:43,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 253 transitions, 2070 flow [2024-11-19 14:08:43,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:08:43,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:08:43,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 197 transitions. [2024-11-19 14:08:43,280 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4264069264069264 [2024-11-19 14:08:43,280 INFO L175 Difference]: Start difference. First operand has 131 places, 254 transitions, 1608 flow. Second operand 6 states and 197 transitions. [2024-11-19 14:08:43,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 253 transitions, 2070 flow [2024-11-19 14:08:43,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 253 transitions, 2028 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-19 14:08:43,299 INFO L231 Difference]: Finished difference. Result has 129 places, 253 transitions, 1676 flow [2024-11-19 14:08:43,299 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=1556, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1676, PETRI_PLACES=129, PETRI_TRANSITIONS=253} [2024-11-19 14:08:43,300 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 56 predicate places. [2024-11-19 14:08:43,300 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 253 transitions, 1676 flow [2024-11-19 14:08:43,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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) [2024-11-19 14:08:43,300 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:43,304 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:43,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-19 14:08:43,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-19 14:08:43,505 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:43,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:43,505 INFO L85 PathProgramCache]: Analyzing trace with hash -793781267, now seen corresponding path program 1 times [2024-11-19 14:08:43,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:43,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850097993] [2024-11-19 14:08:43,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:43,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:43,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:08:43,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:43,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850097993] [2024-11-19 14:08:43,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850097993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:43,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:08:43,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 14:08:43,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539827984] [2024-11-19 14:08:43,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:43,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:08:43,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:43,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:08:43,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:08:43,832 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 77 [2024-11-19 14:08:43,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 253 transitions, 1676 flow. Second operand has 6 states, 6 states have (on average 30.666666666666668) internal successors, (184), 6 states have internal predecessors, (184), 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) [2024-11-19 14:08:43,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:43,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 77 [2024-11-19 14:08:43,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:44,505 INFO L124 PetriNetUnfolderBase]: 2468/5589 cut-off events. [2024-11-19 14:08:44,505 INFO L125 PetriNetUnfolderBase]: For 5791/5802 co-relation queries the response was YES. [2024-11-19 14:08:44,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16525 conditions, 5589 events. 2468/5589 cut-off events. For 5791/5802 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 42782 event pairs, 725 based on Foata normal form. 56/5081 useless extension candidates. Maximal degree in co-relation 15013. Up to 1882 conditions per place. [2024-11-19 14:08:44,531 INFO L140 encePairwiseOnDemand]: 69/77 looper letters, 319 selfloop transitions, 23 changer transitions 18/377 dead transitions. [2024-11-19 14:08:44,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 377 transitions, 3217 flow [2024-11-19 14:08:44,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:08:44,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:08:44,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 246 transitions. [2024-11-19 14:08:44,532 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5324675324675324 [2024-11-19 14:08:44,532 INFO L175 Difference]: Start difference. First operand has 129 places, 253 transitions, 1676 flow. Second operand 6 states and 246 transitions. [2024-11-19 14:08:44,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 377 transitions, 3217 flow [2024-11-19 14:08:44,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 377 transitions, 3067 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 14:08:44,563 INFO L231 Difference]: Finished difference. Result has 131 places, 260 transitions, 1683 flow [2024-11-19 14:08:44,563 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=1556, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1683, PETRI_PLACES=131, PETRI_TRANSITIONS=260} [2024-11-19 14:08:44,563 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 58 predicate places. [2024-11-19 14:08:44,563 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 260 transitions, 1683 flow [2024-11-19 14:08:44,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.666666666666668) internal successors, (184), 6 states have internal predecessors, (184), 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) [2024-11-19 14:08:44,564 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:44,564 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:44,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 14:08:44,564 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:44,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:44,564 INFO L85 PathProgramCache]: Analyzing trace with hash -868808028, now seen corresponding path program 2 times [2024-11-19 14:08:44,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:44,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309423146] [2024-11-19 14:08:44,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:08:44,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:44,579 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:08:44,579 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:08:44,608 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 14:08:44,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:44,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309423146] [2024-11-19 14:08:44,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309423146] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:08:44,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446187243] [2024-11-19 14:08:44,608 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:08:44,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:44,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:08:44,610 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:08:44,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 14:08:44,728 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:08:44,729 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:08:44,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:08:44,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:08:44,752 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 14:08:44,752 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:08:44,779 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 14:08:44,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446187243] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:08:44,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:08:44,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-19 14:08:44,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79551304] [2024-11-19 14:08:44,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:08:44,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:08:44,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:44,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:08:44,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:08:44,788 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 77 [2024-11-19 14:08:44,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 260 transitions, 1683 flow. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 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) [2024-11-19 14:08:44,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:44,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 77 [2024-11-19 14:08:44,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:45,317 INFO L124 PetriNetUnfolderBase]: 2159/5252 cut-off events. [2024-11-19 14:08:45,318 INFO L125 PetriNetUnfolderBase]: For 5599/5599 co-relation queries the response was YES. [2024-11-19 14:08:45,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15509 conditions, 5252 events. 2159/5252 cut-off events. For 5599/5599 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 42162 event pairs, 1346 based on Foata normal form. 8/4764 useless extension candidates. Maximal degree in co-relation 14000. Up to 2983 conditions per place. [2024-11-19 14:08:45,345 INFO L140 encePairwiseOnDemand]: 70/77 looper letters, 171 selfloop transitions, 74 changer transitions 0/261 dead transitions. [2024-11-19 14:08:45,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 261 transitions, 2177 flow [2024-11-19 14:08:45,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:08:45,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:08:45,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 173 transitions. [2024-11-19 14:08:45,348 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44935064935064933 [2024-11-19 14:08:45,348 INFO L175 Difference]: Start difference. First operand has 131 places, 260 transitions, 1683 flow. Second operand 5 states and 173 transitions. [2024-11-19 14:08:45,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 261 transitions, 2177 flow [2024-11-19 14:08:45,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 261 transitions, 2119 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-19 14:08:45,378 INFO L231 Difference]: Finished difference. Result has 129 places, 261 transitions, 1795 flow [2024-11-19 14:08:45,379 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=1615, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1795, PETRI_PLACES=129, PETRI_TRANSITIONS=261} [2024-11-19 14:08:45,379 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 56 predicate places. [2024-11-19 14:08:45,379 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 261 transitions, 1795 flow [2024-11-19 14:08:45,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 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) [2024-11-19 14:08:45,379 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:45,379 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:45,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-19 14:08:45,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:45,580 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:45,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:45,580 INFO L85 PathProgramCache]: Analyzing trace with hash -529440238, now seen corresponding path program 1 times [2024-11-19 14:08:45,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:45,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224483456] [2024-11-19 14:08:45,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:45,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:45,802 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:08:45,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:45,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224483456] [2024-11-19 14:08:45,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224483456] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:08:45,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197451420] [2024-11-19 14:08:45,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:45,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:45,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:08:45,804 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:08:45,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 14:08:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:45,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:08:45,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:08:45,966 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:08:45,966 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:08:45,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197451420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:45,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:08:45,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [6] total 7 [2024-11-19 14:08:45,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744647727] [2024-11-19 14:08:45,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:45,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:08:45,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:45,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:08:45,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-19 14:08:45,968 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 77 [2024-11-19 14:08:45,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 261 transitions, 1795 flow. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2024-11-19 14:08:45,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:45,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 77 [2024-11-19 14:08:45,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:46,425 INFO L124 PetriNetUnfolderBase]: 1982/4995 cut-off events. [2024-11-19 14:08:46,426 INFO L125 PetriNetUnfolderBase]: For 5588/5588 co-relation queries the response was YES. [2024-11-19 14:08:46,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15194 conditions, 4995 events. 1982/4995 cut-off events. For 5588/5588 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 40216 event pairs, 1210 based on Foata normal form. 0/4598 useless extension candidates. Maximal degree in co-relation 13648. Up to 4114 conditions per place. [2024-11-19 14:08:46,446 INFO L140 encePairwiseOnDemand]: 75/77 looper letters, 243 selfloop transitions, 1 changer transitions 0/260 dead transitions. [2024-11-19 14:08:46,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 260 transitions, 2277 flow [2024-11-19 14:08:46,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:08:46,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:08:46,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 124 transitions. [2024-11-19 14:08:46,447 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5367965367965368 [2024-11-19 14:08:46,447 INFO L175 Difference]: Start difference. First operand has 129 places, 261 transitions, 1795 flow. Second operand 3 states and 124 transitions. [2024-11-19 14:08:46,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 260 transitions, 2277 flow [2024-11-19 14:08:46,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 260 transitions, 2143 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:08:46,475 INFO L231 Difference]: Finished difference. Result has 127 places, 260 transitions, 1657 flow [2024-11-19 14:08:46,475 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=1655, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1657, PETRI_PLACES=127, PETRI_TRANSITIONS=260} [2024-11-19 14:08:46,475 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 54 predicate places. [2024-11-19 14:08:46,475 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 260 transitions, 1657 flow [2024-11-19 14:08:46,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2024-11-19 14:08:46,476 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:46,476 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:46,488 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-19 14:08:46,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-19 14:08:46,676 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:46,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:46,677 INFO L85 PathProgramCache]: Analyzing trace with hash -529440236, now seen corresponding path program 1 times [2024-11-19 14:08:46,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:46,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550156422] [2024-11-19 14:08:46,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:46,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:46,737 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:08:46,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:46,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550156422] [2024-11-19 14:08:46,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550156422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:46,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:08:46,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:08:46,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553211573] [2024-11-19 14:08:46,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:46,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:08:46,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:46,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:08:46,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:08:46,742 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 77 [2024-11-19 14:08:46,743 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 260 transitions, 1657 flow. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 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) [2024-11-19 14:08:46,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:46,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 77 [2024-11-19 14:08:46,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:47,516 INFO L124 PetriNetUnfolderBase]: 3039/6629 cut-off events. [2024-11-19 14:08:47,517 INFO L125 PetriNetUnfolderBase]: For 6129/6188 co-relation queries the response was YES. [2024-11-19 14:08:47,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18997 conditions, 6629 events. 3039/6629 cut-off events. For 6129/6188 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 50977 event pairs, 772 based on Foata normal form. 47/6168 useless extension candidates. Maximal degree in co-relation 18965. Up to 3275 conditions per place. [2024-11-19 14:08:47,546 INFO L140 encePairwiseOnDemand]: 71/77 looper letters, 266 selfloop transitions, 6 changer transitions 4/292 dead transitions. [2024-11-19 14:08:47,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 292 transitions, 2315 flow [2024-11-19 14:08:47,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:08:47,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:08:47,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 189 transitions. [2024-11-19 14:08:47,549 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2024-11-19 14:08:47,549 INFO L175 Difference]: Start difference. First operand has 127 places, 260 transitions, 1657 flow. Second operand 4 states and 189 transitions. [2024-11-19 14:08:47,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 292 transitions, 2315 flow [2024-11-19 14:08:47,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 292 transitions, 2314 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:08:47,574 INFO L231 Difference]: Finished difference. Result has 132 places, 264 transitions, 1716 flow [2024-11-19 14:08:47,575 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=1656, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1716, PETRI_PLACES=132, PETRI_TRANSITIONS=264} [2024-11-19 14:08:47,575 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 59 predicate places. [2024-11-19 14:08:47,575 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 264 transitions, 1716 flow [2024-11-19 14:08:47,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 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) [2024-11-19 14:08:47,575 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:47,576 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:47,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 14:08:47,576 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:47,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:47,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1422050246, now seen corresponding path program 1 times [2024-11-19 14:08:47,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:47,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356718300] [2024-11-19 14:08:47,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:47,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:47,634 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:08:47,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:47,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356718300] [2024-11-19 14:08:47,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356718300] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:08:47,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713525502] [2024-11-19 14:08:47,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:47,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:47,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:08:47,637 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:08:47,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-19 14:08:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:47,764 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:08:47,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:08:47,827 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:08:47,827 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:08:47,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713525502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:08:47,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:08:47,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2024-11-19 14:08:47,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594900345] [2024-11-19 14:08:47,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:08:47,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:08:47,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:47,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:08:47,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:08:47,833 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 77 [2024-11-19 14:08:47,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 264 transitions, 1716 flow. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:08:47,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:47,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 77 [2024-11-19 14:08:47,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:48,478 INFO L124 PetriNetUnfolderBase]: 2943/6397 cut-off events. [2024-11-19 14:08:48,478 INFO L125 PetriNetUnfolderBase]: For 9246/9447 co-relation queries the response was YES. [2024-11-19 14:08:48,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19723 conditions, 6397 events. 2943/6397 cut-off events. For 9246/9447 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 48391 event pairs, 810 based on Foata normal form. 248/6321 useless extension candidates. Maximal degree in co-relation 19687. Up to 3597 conditions per place. [2024-11-19 14:08:48,513 INFO L140 encePairwiseOnDemand]: 70/77 looper letters, 254 selfloop transitions, 8 changer transitions 0/278 dead transitions. [2024-11-19 14:08:48,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 278 transitions, 2294 flow [2024-11-19 14:08:48,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:08:48,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:08:48,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 170 transitions. [2024-11-19 14:08:48,514 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.551948051948052 [2024-11-19 14:08:48,514 INFO L175 Difference]: Start difference. First operand has 132 places, 264 transitions, 1716 flow. Second operand 4 states and 170 transitions. [2024-11-19 14:08:48,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 278 transitions, 2294 flow [2024-11-19 14:08:48,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 278 transitions, 2288 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-19 14:08:48,542 INFO L231 Difference]: Finished difference. Result has 134 places, 265 transitions, 1763 flow [2024-11-19 14:08:48,543 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=1690, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1763, PETRI_PLACES=134, PETRI_TRANSITIONS=265} [2024-11-19 14:08:48,543 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 61 predicate places. [2024-11-19 14:08:48,543 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 265 transitions, 1763 flow [2024-11-19 14:08:48,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:08:48,543 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:48,543 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:48,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-19 14:08:48,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-19 14:08:48,744 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:48,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:48,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1422050245, now seen corresponding path program 1 times [2024-11-19 14:08:48,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:48,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903724744] [2024-11-19 14:08:48,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:48,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:48,891 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:08:48,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:48,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903724744] [2024-11-19 14:08:48,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903724744] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:08:48,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709315558] [2024-11-19 14:08:48,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:48,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:48,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:08:48,895 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:08:48,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-19 14:08:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:49,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 14:08:49,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:08:49,064 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:08:49,064 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:08:49,096 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:08:49,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709315558] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:08:49,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:08:49,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 2, 2] total 8 [2024-11-19 14:08:49,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842444098] [2024-11-19 14:08:49,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:08:49,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 14:08:49,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:49,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 14:08:49,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 14:08:49,138 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 77 [2024-11-19 14:08:49,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 265 transitions, 1763 flow. Second operand has 9 states, 9 states have (on average 24.22222222222222) internal successors, (218), 9 states have internal predecessors, (218), 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) [2024-11-19 14:08:49,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:49,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 77 [2024-11-19 14:08:49,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:50,268 INFO L124 PetriNetUnfolderBase]: 4288/9493 cut-off events. [2024-11-19 14:08:50,268 INFO L125 PetriNetUnfolderBase]: For 23154/23570 co-relation queries the response was YES. [2024-11-19 14:08:50,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29605 conditions, 9493 events. 4288/9493 cut-off events. For 23154/23570 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 78858 event pairs, 1772 based on Foata normal form. 500/9809 useless extension candidates. Maximal degree in co-relation 29566. Up to 3408 conditions per place. [2024-11-19 14:08:50,314 INFO L140 encePairwiseOnDemand]: 65/77 looper letters, 325 selfloop transitions, 56 changer transitions 6/400 dead transitions. [2024-11-19 14:08:50,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 400 transitions, 3432 flow [2024-11-19 14:08:50,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 14:08:50,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 14:08:50,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 267 transitions. [2024-11-19 14:08:50,315 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3852813852813853 [2024-11-19 14:08:50,315 INFO L175 Difference]: Start difference. First operand has 134 places, 265 transitions, 1763 flow. Second operand 9 states and 267 transitions. [2024-11-19 14:08:50,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 400 transitions, 3432 flow [2024-11-19 14:08:50,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 400 transitions, 3400 flow, removed 14 selfloop flow, removed 2 redundant places. [2024-11-19 14:08:50,359 INFO L231 Difference]: Finished difference. Result has 140 places, 289 transitions, 2143 flow [2024-11-19 14:08:50,359 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=1716, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2143, PETRI_PLACES=140, PETRI_TRANSITIONS=289} [2024-11-19 14:08:50,360 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 67 predicate places. [2024-11-19 14:08:50,360 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 289 transitions, 2143 flow [2024-11-19 14:08:50,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 24.22222222222222) internal successors, (218), 9 states have internal predecessors, (218), 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) [2024-11-19 14:08:50,360 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:50,360 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:08:50,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-19 14:08:50,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-19 14:08:50,565 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:50,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:50,565 INFO L85 PathProgramCache]: Analyzing trace with hash 410707948, now seen corresponding path program 1 times [2024-11-19 14:08:50,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:50,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074562082] [2024-11-19 14:08:50,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:50,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:50,643 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:08:50,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:50,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074562082] [2024-11-19 14:08:50,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074562082] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:08:50,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759133652] [2024-11-19 14:08:50,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:50,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:50,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:08:50,645 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:08:50,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-19 14:08:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:50,807 INFO L255 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:08:50,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:08:50,850 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:08:50,851 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:08:50,888 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:08:50,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759133652] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:08:50,889 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:08:50,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-11-19 14:08:50,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731211210] [2024-11-19 14:08:50,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:08:50,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 14:08:50,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:50,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 14:08:50,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-11-19 14:08:50,902 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 77 [2024-11-19 14:08:50,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 289 transitions, 2143 flow. Second operand has 9 states, 9 states have (on average 34.666666666666664) internal successors, (312), 9 states have internal predecessors, (312), 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) [2024-11-19 14:08:50,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:50,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 77 [2024-11-19 14:08:50,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:52,679 INFO L124 PetriNetUnfolderBase]: 6437/12848 cut-off events. [2024-11-19 14:08:52,679 INFO L125 PetriNetUnfolderBase]: For 30556/30990 co-relation queries the response was YES. [2024-11-19 14:08:52,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42338 conditions, 12848 events. 6437/12848 cut-off events. For 30556/30990 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 101010 event pairs, 611 based on Foata normal form. 652/13343 useless extension candidates. Maximal degree in co-relation 42297. Up to 3789 conditions per place. [2024-11-19 14:08:52,751 INFO L140 encePairwiseOnDemand]: 73/77 looper letters, 329 selfloop transitions, 21 changer transitions 0/366 dead transitions. [2024-11-19 14:08:52,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 366 transitions, 3179 flow [2024-11-19 14:08:52,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 14:08:52,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 14:08:52,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 335 transitions. [2024-11-19 14:08:52,752 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5438311688311688 [2024-11-19 14:08:52,752 INFO L175 Difference]: Start difference. First operand has 140 places, 289 transitions, 2143 flow. Second operand 8 states and 335 transitions. [2024-11-19 14:08:52,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 366 transitions, 3179 flow [2024-11-19 14:08:52,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 366 transitions, 3139 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-19 14:08:52,806 INFO L231 Difference]: Finished difference. Result has 148 places, 305 transitions, 2357 flow [2024-11-19 14:08:52,806 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=2103, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2357, PETRI_PLACES=148, PETRI_TRANSITIONS=305} [2024-11-19 14:08:52,806 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 75 predicate places. [2024-11-19 14:08:52,806 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 305 transitions, 2357 flow [2024-11-19 14:08:52,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 34.666666666666664) internal successors, (312), 9 states have internal predecessors, (312), 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) [2024-11-19 14:08:52,807 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:52,807 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 1, 1, 1] [2024-11-19 14:08:52,821 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-19 14:08:53,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:53,012 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:53,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:53,013 INFO L85 PathProgramCache]: Analyzing trace with hash -2147406410, now seen corresponding path program 2 times [2024-11-19 14:08:53,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:53,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701785306] [2024-11-19 14:08:53,013 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:08:53,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:53,035 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:08:53,036 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:08:53,058 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 14:08:53,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:53,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701785306] [2024-11-19 14:08:53,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701785306] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:08:53,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428071481] [2024-11-19 14:08:53,059 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:08:53,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:53,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:08:53,061 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:08:53,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-19 14:08:53,182 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:08:53,182 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:08:53,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 14:08:53,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:08:53,212 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 14:08:53,212 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:08:53,241 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 14:08:53,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428071481] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:08:53,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:08:53,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-19 14:08:53,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167252056] [2024-11-19 14:08:53,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:08:53,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:08:53,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:53,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:08:53,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:08:53,263 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 77 [2024-11-19 14:08:53,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 305 transitions, 2357 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-11-19 14:08:53,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:53,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 77 [2024-11-19 14:08:53,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:08:54,945 INFO L124 PetriNetUnfolderBase]: 6407/12832 cut-off events. [2024-11-19 14:08:54,945 INFO L125 PetriNetUnfolderBase]: For 44774/45190 co-relation queries the response was YES. [2024-11-19 14:08:54,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45918 conditions, 12832 events. 6407/12832 cut-off events. For 44774/45190 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 100998 event pairs, 3639 based on Foata normal form. 66/12703 useless extension candidates. Maximal degree in co-relation 45871. Up to 10715 conditions per place. [2024-11-19 14:08:55,145 INFO L140 encePairwiseOnDemand]: 70/77 looper letters, 235 selfloop transitions, 56 changer transitions 0/304 dead transitions. [2024-11-19 14:08:55,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 304 transitions, 2917 flow [2024-11-19 14:08:55,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:08:55,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:08:55,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 136 transitions. [2024-11-19 14:08:55,146 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35324675324675325 [2024-11-19 14:08:55,146 INFO L175 Difference]: Start difference. First operand has 148 places, 305 transitions, 2357 flow. Second operand 5 states and 136 transitions. [2024-11-19 14:08:55,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 304 transitions, 2917 flow [2024-11-19 14:08:55,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 304 transitions, 2877 flow, removed 20 selfloop flow, removed 0 redundant places. [2024-11-19 14:08:55,244 INFO L231 Difference]: Finished difference. Result has 151 places, 304 transitions, 2407 flow [2024-11-19 14:08:55,245 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=2295, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2407, PETRI_PLACES=151, PETRI_TRANSITIONS=304} [2024-11-19 14:08:55,245 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 78 predicate places. [2024-11-19 14:08:55,246 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 304 transitions, 2407 flow [2024-11-19 14:08:55,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-11-19 14:08:55,246 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:08:55,246 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 1, 1, 1, 1] [2024-11-19 14:08:55,259 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-19 14:08:55,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-19 14:08:55,451 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:08:55,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:08:55,451 INFO L85 PathProgramCache]: Analyzing trace with hash 3774140, now seen corresponding path program 1 times [2024-11-19 14:08:55,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:08:55,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576617891] [2024-11-19 14:08:55,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:55,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:08:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:55,878 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:08:55,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:08:55,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576617891] [2024-11-19 14:08:55,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576617891] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:08:55,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041523963] [2024-11-19 14:08:55,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:08:55,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:08:55,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:08:55,881 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:08:55,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-19 14:08:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:08:56,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-19 14:08:56,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:08:56,114 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:08:56,115 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:08:56,603 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:08:56,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041523963] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:08:56,604 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:08:56,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2024-11-19 14:08:56,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979085923] [2024-11-19 14:08:56,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:08:56,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-19 14:08:56,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:08:56,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-19 14:08:56,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2024-11-19 14:08:56,736 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 77 [2024-11-19 14:08:56,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 304 transitions, 2407 flow. Second operand has 48 states, 48 states have (on average 21.0625) internal successors, (1011), 48 states have internal predecessors, (1011), 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) [2024-11-19 14:08:56,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:08:56,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 77 [2024-11-19 14:08:56,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:09:00,016 INFO L124 PetriNetUnfolderBase]: 7211/16048 cut-off events. [2024-11-19 14:09:00,016 INFO L125 PetriNetUnfolderBase]: For 88951/89319 co-relation queries the response was YES. [2024-11-19 14:09:00,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57468 conditions, 16048 events. 7211/16048 cut-off events. For 88951/89319 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 131150 event pairs, 3639 based on Foata normal form. 832/16686 useless extension candidates. Maximal degree in co-relation 57419. Up to 10195 conditions per place. [2024-11-19 14:09:00,123 INFO L140 encePairwiseOnDemand]: 61/77 looper letters, 84 selfloop transitions, 435 changer transitions 0/532 dead transitions. [2024-11-19 14:09:00,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 532 transitions, 5113 flow [2024-11-19 14:09:00,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-19 14:09:00,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2024-11-19 14:09:00,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 1243 transitions. [2024-11-19 14:09:00,127 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35093167701863354 [2024-11-19 14:09:00,127 INFO L175 Difference]: Start difference. First operand has 151 places, 304 transitions, 2407 flow. Second operand 46 states and 1243 transitions. [2024-11-19 14:09:00,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 532 transitions, 5113 flow [2024-11-19 14:09:00,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 532 transitions, 4895 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-19 14:09:00,262 INFO L231 Difference]: Finished difference. Result has 204 places, 532 transitions, 4929 flow [2024-11-19 14:09:00,263 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=2297, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=224, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=4929, PETRI_PLACES=204, PETRI_TRANSITIONS=532} [2024-11-19 14:09:00,263 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 131 predicate places. [2024-11-19 14:09:00,263 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 532 transitions, 4929 flow [2024-11-19 14:09:00,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 21.0625) internal successors, (1011), 48 states have internal predecessors, (1011), 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) [2024-11-19 14:09:00,264 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:09:00,264 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:09:00,277 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-19 14:09:00,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-19 14:09:00,469 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:09:00,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:09:00,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1358491752, now seen corresponding path program 2 times [2024-11-19 14:09:00,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:09:00,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327310654] [2024-11-19 14:09:00,470 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:09:00,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:09:00,531 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 14:09:00,531 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:09:00,773 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:09:00,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:09:00,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327310654] [2024-11-19 14:09:00,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327310654] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:09:00,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648906074] [2024-11-19 14:09:00,774 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:09:00,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:09:00,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:09:00,778 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:09:00,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-19 14:09:00,972 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 14:09:00,972 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:09:00,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 14:09:00,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:09:01,022 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:09:01,022 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:09:01,133 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:09:01,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648906074] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:09:01,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:09:01,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-19 14:09:01,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879252614] [2024-11-19 14:09:01,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:09:01,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 14:09:01,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:09:01,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 14:09:01,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-11-19 14:09:01,160 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 77 [2024-11-19 14:09:01,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 532 transitions, 4929 flow. Second operand has 17 states, 17 states have (on average 32.94117647058823) internal successors, (560), 17 states have internal predecessors, (560), 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) [2024-11-19 14:09:01,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:09:01,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 77 [2024-11-19 14:09:01,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:09:07,458 INFO L124 PetriNetUnfolderBase]: 18917/34618 cut-off events. [2024-11-19 14:09:07,458 INFO L125 PetriNetUnfolderBase]: For 148102/148934 co-relation queries the response was YES. [2024-11-19 14:09:07,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122295 conditions, 34618 events. 18917/34618 cut-off events. For 148102/148934 co-relation queries the response was YES. Maximal size of possible extension queue 565. Compared 277490 event pairs, 1345 based on Foata normal form. 1576/35735 useless extension candidates. Maximal degree in co-relation 122235. Up to 6977 conditions per place. [2024-11-19 14:09:07,877 INFO L140 encePairwiseOnDemand]: 73/77 looper letters, 637 selfloop transitions, 90 changer transitions 0/742 dead transitions. [2024-11-19 14:09:07,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 742 transitions, 7532 flow [2024-11-19 14:09:07,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 14:09:07,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-19 14:09:07,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 663 transitions. [2024-11-19 14:09:07,879 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5381493506493507 [2024-11-19 14:09:07,879 INFO L175 Difference]: Start difference. First operand has 204 places, 532 transitions, 4929 flow. Second operand 16 states and 663 transitions. [2024-11-19 14:09:07,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 742 transitions, 7532 flow [2024-11-19 14:09:08,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 742 transitions, 6508 flow, removed 281 selfloop flow, removed 21 redundant places. [2024-11-19 14:09:08,157 INFO L231 Difference]: Finished difference. Result has 212 places, 602 transitions, 5040 flow [2024-11-19 14:09:08,158 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=3905, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=506, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=5040, PETRI_PLACES=212, PETRI_TRANSITIONS=602} [2024-11-19 14:09:08,158 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 139 predicate places. [2024-11-19 14:09:08,158 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 602 transitions, 5040 flow [2024-11-19 14:09:08,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 32.94117647058823) internal successors, (560), 17 states have internal predecessors, (560), 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) [2024-11-19 14:09:08,159 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:09:08,159 INFO L204 CegarLoopForPetriNet]: trace histogram [23, 23, 22, 1, 1, 1, 1] [2024-11-19 14:09:08,174 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-19 14:09:08,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-19 14:09:08,360 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:09:08,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:09:08,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1897171588, now seen corresponding path program 2 times [2024-11-19 14:09:08,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:09:08,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865873883] [2024-11-19 14:09:08,360 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:09:08,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:09:08,399 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:09:08,399 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:09:08,429 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2024-11-19 14:09:08,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:09:08,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865873883] [2024-11-19 14:09:08,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865873883] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:09:08,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195603529] [2024-11-19 14:09:08,430 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:09:08,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:09:08,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:09:08,432 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:09:08,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-19 14:09:08,599 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:09:08,600 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:09:08,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 14:09:08,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:09:08,668 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2024-11-19 14:09:08,668 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:09:08,737 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2024-11-19 14:09:08,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195603529] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:09:08,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:09:08,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-19 14:09:08,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203404707] [2024-11-19 14:09:08,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:09:08,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:09:08,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:09:08,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:09:08,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:09:08,757 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 77 [2024-11-19 14:09:08,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 602 transitions, 5040 flow. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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) [2024-11-19 14:09:08,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:09:08,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 77 [2024-11-19 14:09:08,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:09:15,809 INFO L124 PetriNetUnfolderBase]: 18887/35064 cut-off events. [2024-11-19 14:09:15,809 INFO L125 PetriNetUnfolderBase]: For 172698/173818 co-relation queries the response was YES. [2024-11-19 14:09:16,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128787 conditions, 35064 events. 18887/35064 cut-off events. For 172698/173818 co-relation queries the response was YES. Maximal size of possible extension queue 574. Compared 283917 event pairs, 11187 based on Foata normal form. 292/35161 useless extension candidates. Maximal degree in co-relation 128713. Up to 29304 conditions per place. [2024-11-19 14:09:16,460 INFO L140 encePairwiseOnDemand]: 68/77 looper letters, 403 selfloop transitions, 185 changer transitions 0/601 dead transitions. [2024-11-19 14:09:16,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 601 transitions, 6170 flow [2024-11-19 14:09:16,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:09:16,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:09:16,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 135 transitions. [2024-11-19 14:09:16,461 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35064935064935066 [2024-11-19 14:09:16,461 INFO L175 Difference]: Start difference. First operand has 212 places, 602 transitions, 5040 flow. Second operand 5 states and 135 transitions. [2024-11-19 14:09:16,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 601 transitions, 6170 flow [2024-11-19 14:09:17,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 601 transitions, 5979 flow, removed 93 selfloop flow, removed 1 redundant places. [2024-11-19 14:09:17,131 INFO L231 Difference]: Finished difference. Result has 214 places, 601 transitions, 5173 flow [2024-11-19 14:09:17,131 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=4803, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=601, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=185, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=5173, PETRI_PLACES=214, PETRI_TRANSITIONS=601} [2024-11-19 14:09:17,132 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 141 predicate places. [2024-11-19 14:09:17,132 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 601 transitions, 5173 flow [2024-11-19 14:09:17,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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) [2024-11-19 14:09:17,132 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:09:17,132 INFO L204 CegarLoopForPetriNet]: trace histogram [23, 23, 22, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:09:17,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-19 14:09:17,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-19 14:09:17,333 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:09:17,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:09:17,333 INFO L85 PathProgramCache]: Analyzing trace with hash 359706339, now seen corresponding path program 1 times [2024-11-19 14:09:17,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:09:17,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979165035] [2024-11-19 14:09:17,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:09:17,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:09:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:09:18,380 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 0 proven. 759 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:09:18,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:09:18,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979165035] [2024-11-19 14:09:18,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979165035] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:09:18,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632643170] [2024-11-19 14:09:18,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:09:18,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:09:18,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:09:18,382 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:09:18,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-19 14:09:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:09:18,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-19 14:09:18,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:09:18,812 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 0 proven. 759 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:09:18,813 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:09:20,325 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 0 proven. 759 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:09:20,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632643170] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:09:20,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:09:20,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 95 [2024-11-19 14:09:20,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711116196] [2024-11-19 14:09:20,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:09:20,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-11-19 14:09:20,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:09:20,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-11-19 14:09:20,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2351, Invalid=6769, Unknown=0, NotChecked=0, Total=9120 [2024-11-19 14:09:20,557 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 77 [2024-11-19 14:09:20,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 601 transitions, 5173 flow. Second operand has 96 states, 96 states have (on average 21.0625) internal successors, (2022), 96 states have internal predecessors, (2022), 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) [2024-11-19 14:09:20,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:09:20,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 77 [2024-11-19 14:09:20,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:09:32,632 INFO L124 PetriNetUnfolderBase]: 20495/41496 cut-off events. [2024-11-19 14:09:32,632 INFO L125 PetriNetUnfolderBase]: For 517734/518694 co-relation queries the response was YES. [2024-11-19 14:09:33,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149035 conditions, 41496 events. 20495/41496 cut-off events. For 517734/518694 co-relation queries the response was YES. Maximal size of possible extension queue 574. Compared 341056 event pairs, 11187 based on Foata normal form. 1728/43005 useless extension candidates. Maximal degree in co-relation 148960. Up to 28107 conditions per place. [2024-11-19 14:09:33,361 INFO L140 encePairwiseOnDemand]: 62/77 looper letters, 153 selfloop transitions, 891 changer transitions 0/1057 dead transitions. [2024-11-19 14:09:33,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 1057 transitions, 10765 flow [2024-11-19 14:09:33,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2024-11-19 14:09:33,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2024-11-19 14:09:33,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 2490 transitions. [2024-11-19 14:09:33,372 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34401768444321634 [2024-11-19 14:09:33,372 INFO L175 Difference]: Start difference. First operand has 214 places, 601 transitions, 5173 flow. Second operand 94 states and 2490 transitions. [2024-11-19 14:09:33,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 1057 transitions, 10765 flow [2024-11-19 14:09:33,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 1057 transitions, 10009 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-19 14:09:33,891 INFO L231 Difference]: Finished difference. Result has 327 places, 1057 transitions, 10025 flow [2024-11-19 14:09:33,892 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=4801, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=601, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=452, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=94, PETRI_FLOW=10025, PETRI_PLACES=327, PETRI_TRANSITIONS=1057} [2024-11-19 14:09:33,893 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 254 predicate places. [2024-11-19 14:09:33,893 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 1057 transitions, 10025 flow [2024-11-19 14:09:33,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 21.0625) internal successors, (2022), 96 states have internal predecessors, (2022), 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) [2024-11-19 14:09:33,894 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:09:33,894 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:09:33,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-19 14:09:34,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:09:34,098 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:09:34,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:09:34,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1851205904, now seen corresponding path program 3 times [2024-11-19 14:09:34,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:09:34,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059768391] [2024-11-19 14:09:34,099 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 14:09:34,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:09:34,256 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 14:09:34,256 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:09:34,405 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2024-11-19 14:09:34,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:09:34,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059768391] [2024-11-19 14:09:34,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059768391] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:09:34,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631274216] [2024-11-19 14:09:34,406 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 14:09:34,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:09:34,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:09:34,410 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:09:34,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-19 14:09:34,611 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 14:09:34,611 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:09:34,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 14:09:34,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:09:34,719 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 54 proven. 1 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2024-11-19 14:09:34,719 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:09:34,858 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2024-11-19 14:09:34,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631274216] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:09:34,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:09:34,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-19 14:09:34,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585916239] [2024-11-19 14:09:34,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:09:34,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 14:09:34,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:09:34,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 14:09:34,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-19 14:09:34,937 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 77 [2024-11-19 14:09:34,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 1057 transitions, 10025 flow. Second operand has 15 states, 15 states have (on average 22.533333333333335) internal successors, (338), 15 states have internal predecessors, (338), 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) [2024-11-19 14:09:34,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:09:34,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 77 [2024-11-19 14:09:34,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand