./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf4899d-e337-473c-81c6-68b14de42377/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf4899d-e337-473c-81c6-68b14de42377/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf4899d-e337-473c-81c6-68b14de42377/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf4899d-e337-473c-81c6-68b14de42377/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf4899d-e337-473c-81c6-68b14de42377/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf4899d-e337-473c-81c6-68b14de42377/bin/uautomizer-verify-4GaUIPS5ZU --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 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:05:03,801 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:05:03,874 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf4899d-e337-473c-81c6-68b14de42377/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 22:05:03,879 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:05:03,879 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:05:03,905 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:05:03,908 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:05:03,909 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:05:03,910 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:05:03,911 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:05:03,911 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:05:03,912 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:05:03,914 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:05:03,915 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:05:03,915 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:05:03,916 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:05:03,916 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:05:03,917 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:05:03,917 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:05:03,917 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:05:03,921 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:05:03,922 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:05:03,922 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:05:03,923 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:05:03,923 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:05:03,923 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:05:03,924 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:05:03,924 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:05:03,924 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:05:03,924 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:05:03,925 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:05:03,925 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:05:03,925 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:05:03,925 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:05:03,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:05:03,926 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:05:03,927 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:05:03,927 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:05:03,927 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:05:03,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:05:03,928 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:05:03,928 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:05:03,929 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:05:03,929 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:05:03,929 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf4899d-e337-473c-81c6-68b14de42377/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf4899d-e337-473c-81c6-68b14de42377/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 [2024-10-31 22:05:04,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:05:04,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:05:04,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:05:04,248 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:05:04,249 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:05:04,250 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf4899d-e337-473c-81c6-68b14de42377/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i Unable to find full path for "g++" [2024-10-31 22:05:06,302 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:05:06,638 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:05:06,641 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf4899d-e337-473c-81c6-68b14de42377/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2024-10-31 22:05:06,677 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf4899d-e337-473c-81c6-68b14de42377/bin/uautomizer-verify-4GaUIPS5ZU/data/ad2db20c7/afdc87b5540b4a29bd2ae38f8adebe09/FLAG9420d78d6 [2024-10-31 22:05:06,692 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf4899d-e337-473c-81c6-68b14de42377/bin/uautomizer-verify-4GaUIPS5ZU/data/ad2db20c7/afdc87b5540b4a29bd2ae38f8adebe09 [2024-10-31 22:05:06,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:05:06,696 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:05:06,698 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:05:06,698 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:05:06,706 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:05:06,706 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:05:06" (1/1) ... [2024-10-31 22:05:06,710 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28fe5c46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:06, skipping insertion in model container [2024-10-31 22:05:06,710 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:05:06" (1/1) ... [2024-10-31 22:05:06,808 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:05:07,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:05:07,444 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:05:07,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:05:07,625 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:05:07,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:07 WrapperNode [2024-10-31 22:05:07,626 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:05:07,627 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:05:07,627 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:05:07,628 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:05:07,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:07" (1/1) ... [2024-10-31 22:05:07,668 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:07" (1/1) ... [2024-10-31 22:05:07,706 INFO L138 Inliner]: procedures = 248, calls = 56, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 154 [2024-10-31 22:05:07,706 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:05:07,707 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:05:07,707 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:05:07,707 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:05:07,719 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:07" (1/1) ... [2024-10-31 22:05:07,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:07" (1/1) ... [2024-10-31 22:05:07,723 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:07" (1/1) ... [2024-10-31 22:05:07,746 INFO L175 MemorySlicer]: Split 19 memory accesses to 3 slices as follows [2, 2, 15]. 79 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 10 writes are split as follows [0, 2, 8]. [2024-10-31 22:05:07,747 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:07" (1/1) ... [2024-10-31 22:05:07,747 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:07" (1/1) ... [2024-10-31 22:05:07,758 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:07" (1/1) ... [2024-10-31 22:05:07,760 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:07" (1/1) ... [2024-10-31 22:05:07,764 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:07" (1/1) ... [2024-10-31 22:05:07,766 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:07" (1/1) ... [2024-10-31 22:05:07,771 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:05:07,775 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:05:07,775 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:05:07,775 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:05:07,776 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:07" (1/1) ... [2024-10-31 22:05:07,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:05:07,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf4899d-e337-473c-81c6-68b14de42377/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:05:07,823 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf4899d-e337-473c-81c6-68b14de42377/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:05:07,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdf4899d-e337-473c-81c6-68b14de42377/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:05:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-10-31 22:05:07,856 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-10-31 22:05:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:05:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:05:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:05:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:05:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:05:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:05:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:05:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 22:05:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:05:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:05:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 22:05:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:05:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:05:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:05:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 22:05:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-31 22:05:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:05:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:05:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:05:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:05:07,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:05:07,864 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:05:08,189 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:05:08,191 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:05:08,529 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:05:08,530 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:05:08,809 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:05:08,809 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:05:08,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:05:08 BoogieIcfgContainer [2024-10-31 22:05:08,810 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:05:08,813 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:05:08,813 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:05:08,816 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:05:08,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:05:06" (1/3) ... [2024-10-31 22:05:08,817 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3fe64c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:05:08, skipping insertion in model container [2024-10-31 22:05:08,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:05:07" (2/3) ... [2024-10-31 22:05:08,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3fe64c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:05:08, skipping insertion in model container [2024-10-31 22:05:08,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:05:08" (3/3) ... [2024-10-31 22:05:08,820 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2024-10-31 22:05:08,840 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:05:08,840 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 22:05:08,841 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:05:08,908 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:05:08,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 44 transitions, 102 flow [2024-10-31 22:05:08,987 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-10-31 22:05:08,987 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:05:08,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 51 events. 2/51 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 120 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 28. Up to 3 conditions per place. [2024-10-31 22:05:08,990 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 44 transitions, 102 flow [2024-10-31 22:05:08,994 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 38 transitions, 85 flow [2024-10-31 22:05:09,004 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:05:09,012 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;@50fdd9a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:05:09,012 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-31 22:05:09,029 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:05:09,029 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2024-10-31 22:05:09,029 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:05:09,029 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:09,030 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:09,031 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-31 22:05:09,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:09,038 INFO L85 PathProgramCache]: Analyzing trace with hash -85911709, now seen corresponding path program 1 times [2024-10-31 22:05:09,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:09,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472333155] [2024-10-31 22:05:09,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:09,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:10,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:10,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:10,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472333155] [2024-10-31 22:05:10,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472333155] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:10,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:10,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:05:10,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205739056] [2024-10-31 22:05:10,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:10,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:05:10,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:10,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:05:10,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:05:10,492 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-31 22:05:10,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 85 flow. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2024-10-31 22:05:10,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:10,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-31 22:05:10,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:11,720 INFO L124 PetriNetUnfolderBase]: 2221/3630 cut-off events. [2024-10-31 22:05:11,721 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-10-31 22:05:11,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7280 conditions, 3630 events. 2221/3630 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 20052 event pairs, 1170 based on Foata normal form. 0/3166 useless extension candidates. Maximal degree in co-relation 7188. Up to 2402 conditions per place. [2024-10-31 22:05:11,789 INFO L140 encePairwiseOnDemand]: 32/44 looper letters, 85 selfloop transitions, 24 changer transitions 3/115 dead transitions. [2024-10-31 22:05:11,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 115 transitions, 478 flow [2024-10-31 22:05:11,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:05:11,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-31 22:05:11,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 176 transitions. [2024-10-31 22:05:11,804 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4 [2024-10-31 22:05:11,806 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 85 flow. Second operand 10 states and 176 transitions. [2024-10-31 22:05:11,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 115 transitions, 478 flow [2024-10-31 22:05:11,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 115 transitions, 467 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:05:11,819 INFO L231 Difference]: Finished difference. Result has 56 places, 63 transitions, 233 flow [2024-10-31 22:05:11,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=233, PETRI_PLACES=56, PETRI_TRANSITIONS=63} [2024-10-31 22:05:11,825 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 11 predicate places. [2024-10-31 22:05:11,825 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 63 transitions, 233 flow [2024-10-31 22:05:11,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2024-10-31 22:05:11,826 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:11,826 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:11,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:05:11,827 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-31 22:05:11,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:11,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1647241241, now seen corresponding path program 1 times [2024-10-31 22:05:11,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:11,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322979835] [2024-10-31 22:05:11,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:11,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:12,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:12,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:12,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322979835] [2024-10-31 22:05:12,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322979835] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:12,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:12,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:05:12,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160738619] [2024-10-31 22:05:12,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:12,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:05:12,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:12,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:05:12,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:05:12,319 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-31 22:05:12,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 63 transitions, 233 flow. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2024-10-31 22:05:12,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:12,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-31 22:05:12,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:13,452 INFO L124 PetriNetUnfolderBase]: 2697/4445 cut-off events. [2024-10-31 22:05:13,452 INFO L125 PetriNetUnfolderBase]: For 1572/1574 co-relation queries the response was YES. [2024-10-31 22:05:13,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10778 conditions, 4445 events. 2697/4445 cut-off events. For 1572/1574 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 26189 event pairs, 1670 based on Foata normal form. 2/4055 useless extension candidates. Maximal degree in co-relation 9198. Up to 3258 conditions per place. [2024-10-31 22:05:13,480 INFO L140 encePairwiseOnDemand]: 32/44 looper letters, 90 selfloop transitions, 33 changer transitions 5/131 dead transitions. [2024-10-31 22:05:13,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 131 transitions, 711 flow [2024-10-31 22:05:13,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:05:13,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-31 22:05:13,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 173 transitions. [2024-10-31 22:05:13,484 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3931818181818182 [2024-10-31 22:05:13,484 INFO L175 Difference]: Start difference. First operand has 56 places, 63 transitions, 233 flow. Second operand 10 states and 173 transitions. [2024-10-31 22:05:13,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 131 transitions, 711 flow [2024-10-31 22:05:13,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 131 transitions, 709 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:05:13,502 INFO L231 Difference]: Finished difference. Result has 68 places, 83 transitions, 424 flow [2024-10-31 22:05:13,503 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=424, PETRI_PLACES=68, PETRI_TRANSITIONS=83} [2024-10-31 22:05:13,504 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 23 predicate places. [2024-10-31 22:05:13,504 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 83 transitions, 424 flow [2024-10-31 22:05:13,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2024-10-31 22:05:13,505 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:13,506 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:13,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:05:13,506 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-31 22:05:13,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:13,508 INFO L85 PathProgramCache]: Analyzing trace with hash 575639303, now seen corresponding path program 1 times [2024-10-31 22:05:13,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:13,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785071871] [2024-10-31 22:05:13,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:13,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:14,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:14,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:14,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785071871] [2024-10-31 22:05:14,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785071871] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:14,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:14,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:05:14,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188978756] [2024-10-31 22:05:14,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:14,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:05:14,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:14,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:05:14,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:05:14,372 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-31 22:05:14,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 83 transitions, 424 flow. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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) [2024-10-31 22:05:14,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:14,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-31 22:05:14,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:15,775 INFO L124 PetriNetUnfolderBase]: 2901/4906 cut-off events. [2024-10-31 22:05:15,776 INFO L125 PetriNetUnfolderBase]: For 3743/3751 co-relation queries the response was YES. [2024-10-31 22:05:15,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13634 conditions, 4906 events. 2901/4906 cut-off events. For 3743/3751 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 30927 event pairs, 754 based on Foata normal form. 72/4702 useless extension candidates. Maximal degree in co-relation 12619. Up to 3792 conditions per place. [2024-10-31 22:05:15,813 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 171 selfloop transitions, 30 changer transitions 3/207 dead transitions. [2024-10-31 22:05:15,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 207 transitions, 1410 flow [2024-10-31 22:05:15,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:05:15,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-31 22:05:15,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 185 transitions. [2024-10-31 22:05:15,815 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42045454545454547 [2024-10-31 22:05:15,815 INFO L175 Difference]: Start difference. First operand has 68 places, 83 transitions, 424 flow. Second operand 10 states and 185 transitions. [2024-10-31 22:05:15,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 207 transitions, 1410 flow [2024-10-31 22:05:15,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 207 transitions, 1410 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:05:15,852 INFO L231 Difference]: Finished difference. Result has 84 places, 105 transitions, 653 flow [2024-10-31 22:05:15,853 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=653, PETRI_PLACES=84, PETRI_TRANSITIONS=105} [2024-10-31 22:05:15,854 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 39 predicate places. [2024-10-31 22:05:15,854 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 105 transitions, 653 flow [2024-10-31 22:05:15,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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) [2024-10-31 22:05:15,855 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:15,855 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:15,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:05:15,855 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-31 22:05:15,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:15,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1478388345, now seen corresponding path program 2 times [2024-10-31 22:05:15,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:15,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867959845] [2024-10-31 22:05:15,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:15,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:16,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:16,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:16,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867959845] [2024-10-31 22:05:16,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867959845] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:16,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:16,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:05:16,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414159067] [2024-10-31 22:05:16,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:16,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:05:16,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:16,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:05:16,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:05:16,604 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-31 22:05:16,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 105 transitions, 653 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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) [2024-10-31 22:05:16,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:16,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-31 22:05:16,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:19,161 INFO L124 PetriNetUnfolderBase]: 3734/6225 cut-off events. [2024-10-31 22:05:19,161 INFO L125 PetriNetUnfolderBase]: For 7933/7941 co-relation queries the response was YES. [2024-10-31 22:05:19,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19648 conditions, 6225 events. 3734/6225 cut-off events. For 7933/7941 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 39320 event pairs, 1744 based on Foata normal form. 118/6017 useless extension candidates. Maximal degree in co-relation 18358. Up to 3418 conditions per place. [2024-10-31 22:05:19,224 INFO L140 encePairwiseOnDemand]: 29/44 looper letters, 149 selfloop transitions, 97 changer transitions 5/254 dead transitions. [2024-10-31 22:05:19,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 254 transitions, 2000 flow [2024-10-31 22:05:19,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-31 22:05:19,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-10-31 22:05:19,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 323 transitions. [2024-10-31 22:05:19,226 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33367768595041325 [2024-10-31 22:05:19,227 INFO L175 Difference]: Start difference. First operand has 84 places, 105 transitions, 653 flow. Second operand 22 states and 323 transitions. [2024-10-31 22:05:19,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 254 transitions, 2000 flow [2024-10-31 22:05:19,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 254 transitions, 1958 flow, removed 20 selfloop flow, removed 1 redundant places. [2024-10-31 22:05:19,270 INFO L231 Difference]: Finished difference. Result has 113 places, 156 transitions, 1320 flow [2024-10-31 22:05:19,271 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1320, PETRI_PLACES=113, PETRI_TRANSITIONS=156} [2024-10-31 22:05:19,271 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 68 predicate places. [2024-10-31 22:05:19,271 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 156 transitions, 1320 flow [2024-10-31 22:05:19,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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) [2024-10-31 22:05:19,272 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:19,272 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:19,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:05:19,272 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-31 22:05:19,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:19,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1198305234, now seen corresponding path program 1 times [2024-10-31 22:05:19,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:19,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753843085] [2024-10-31 22:05:19,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:19,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:19,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:19,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:19,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:19,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753843085] [2024-10-31 22:05:19,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753843085] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:19,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:19,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:05:19,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098865560] [2024-10-31 22:05:19,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:19,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:05:19,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:19,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:05:19,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:05:19,386 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 44 [2024-10-31 22:05:19,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 156 transitions, 1320 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-10-31 22:05:19,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:19,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 44 [2024-10-31 22:05:19,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:20,395 INFO L124 PetriNetUnfolderBase]: 2895/4821 cut-off events. [2024-10-31 22:05:20,395 INFO L125 PetriNetUnfolderBase]: For 10611/10614 co-relation queries the response was YES. [2024-10-31 22:05:20,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17612 conditions, 4821 events. 2895/4821 cut-off events. For 10611/10614 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 29777 event pairs, 810 based on Foata normal form. 1/4564 useless extension candidates. Maximal degree in co-relation 16659. Up to 3827 conditions per place. [2024-10-31 22:05:20,458 INFO L140 encePairwiseOnDemand]: 41/44 looper letters, 192 selfloop transitions, 21 changer transitions 0/215 dead transitions. [2024-10-31 22:05:20,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 215 transitions, 2197 flow [2024-10-31 22:05:20,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:05:20,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:05:20,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 90 transitions. [2024-10-31 22:05:20,459 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5113636363636364 [2024-10-31 22:05:20,460 INFO L175 Difference]: Start difference. First operand has 113 places, 156 transitions, 1320 flow. Second operand 4 states and 90 transitions. [2024-10-31 22:05:20,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 215 transitions, 2197 flow [2024-10-31 22:05:20,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 215 transitions, 2038 flow, removed 20 selfloop flow, removed 8 redundant places. [2024-10-31 22:05:20,507 INFO L231 Difference]: Finished difference. Result has 105 places, 136 transitions, 1074 flow [2024-10-31 22:05:20,507 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=1032, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1074, PETRI_PLACES=105, PETRI_TRANSITIONS=136} [2024-10-31 22:05:20,508 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 60 predicate places. [2024-10-31 22:05:20,508 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 136 transitions, 1074 flow [2024-10-31 22:05:20,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-10-31 22:05:20,509 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:20,509 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:20,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:05:20,509 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-31 22:05:20,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:20,510 INFO L85 PathProgramCache]: Analyzing trace with hash 135074367, now seen corresponding path program 1 times [2024-10-31 22:05:20,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:20,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932216026] [2024-10-31 22:05:20,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:20,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:21,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:21,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:21,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932216026] [2024-10-31 22:05:21,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932216026] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:21,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:21,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:05:21,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402392567] [2024-10-31 22:05:21,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:21,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:05:21,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:21,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:05:21,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:05:21,188 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-31 22:05:21,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 136 transitions, 1074 flow. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 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) [2024-10-31 22:05:21,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:21,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-31 22:05:21,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:23,248 INFO L124 PetriNetUnfolderBase]: 3209/5366 cut-off events. [2024-10-31 22:05:23,249 INFO L125 PetriNetUnfolderBase]: For 12594/12602 co-relation queries the response was YES. [2024-10-31 22:05:23,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19637 conditions, 5366 events. 3209/5366 cut-off events. For 12594/12602 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 32275 event pairs, 1572 based on Foata normal form. 56/5148 useless extension candidates. Maximal degree in co-relation 18402. Up to 3576 conditions per place. [2024-10-31 22:05:23,341 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 157 selfloop transitions, 73 changer transitions 4/236 dead transitions. [2024-10-31 22:05:23,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 236 transitions, 2184 flow [2024-10-31 22:05:23,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-31 22:05:23,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-31 22:05:23,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 206 transitions. [2024-10-31 22:05:23,344 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36013986013986016 [2024-10-31 22:05:23,344 INFO L175 Difference]: Start difference. First operand has 105 places, 136 transitions, 1074 flow. Second operand 13 states and 206 transitions. [2024-10-31 22:05:23,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 236 transitions, 2184 flow [2024-10-31 22:05:23,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 236 transitions, 2144 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:05:23,421 INFO L231 Difference]: Finished difference. Result has 121 places, 166 transitions, 1527 flow [2024-10-31 22:05:23,422 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=1052, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1527, PETRI_PLACES=121, PETRI_TRANSITIONS=166} [2024-10-31 22:05:23,422 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 76 predicate places. [2024-10-31 22:05:23,422 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 166 transitions, 1527 flow [2024-10-31 22:05:23,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 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) [2024-10-31 22:05:23,423 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:23,423 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:23,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:05:23,423 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-31 22:05:23,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:23,424 INFO L85 PathProgramCache]: Analyzing trace with hash -781707630, now seen corresponding path program 1 times [2024-10-31 22:05:23,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:23,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686697237] [2024-10-31 22:05:23,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:23,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:23,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:23,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:23,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686697237] [2024-10-31 22:05:23,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686697237] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:23,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:23,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:05:23,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62686110] [2024-10-31 22:05:23,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:23,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:05:23,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:23,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:05:23,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:05:23,944 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-31 22:05:23,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 166 transitions, 1527 flow. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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) [2024-10-31 22:05:23,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:23,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-31 22:05:23,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:26,079 INFO L124 PetriNetUnfolderBase]: 5584/9391 cut-off events. [2024-10-31 22:05:26,079 INFO L125 PetriNetUnfolderBase]: For 27158/27166 co-relation queries the response was YES. [2024-10-31 22:05:26,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38162 conditions, 9391 events. 5584/9391 cut-off events. For 27158/27166 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 64886 event pairs, 1541 based on Foata normal form. 60/8935 useless extension candidates. Maximal degree in co-relation 36263. Up to 4155 conditions per place. [2024-10-31 22:05:26,171 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 347 selfloop transitions, 53 changer transitions 3/405 dead transitions. [2024-10-31 22:05:26,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 405 transitions, 4388 flow [2024-10-31 22:05:26,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 22:05:26,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-31 22:05:26,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 227 transitions. [2024-10-31 22:05:26,173 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4690082644628099 [2024-10-31 22:05:26,173 INFO L175 Difference]: Start difference. First operand has 121 places, 166 transitions, 1527 flow. Second operand 11 states and 227 transitions. [2024-10-31 22:05:26,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 405 transitions, 4388 flow [2024-10-31 22:05:26,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 405 transitions, 4255 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-31 22:05:26,421 INFO L231 Difference]: Finished difference. Result has 131 places, 188 transitions, 1819 flow [2024-10-31 22:05:26,421 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=1446, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1819, PETRI_PLACES=131, PETRI_TRANSITIONS=188} [2024-10-31 22:05:26,422 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 86 predicate places. [2024-10-31 22:05:26,422 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 188 transitions, 1819 flow [2024-10-31 22:05:26,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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) [2024-10-31 22:05:26,423 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:26,423 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:26,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:05:26,424 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-31 22:05:26,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:26,424 INFO L85 PathProgramCache]: Analyzing trace with hash -59745134, now seen corresponding path program 2 times [2024-10-31 22:05:26,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:26,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350594469] [2024-10-31 22:05:26,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:26,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:27,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:27,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:27,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350594469] [2024-10-31 22:05:27,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350594469] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:27,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:27,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:05:27,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258289641] [2024-10-31 22:05:27,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:27,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:05:27,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:27,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:05:27,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:05:27,084 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-31 22:05:27,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 188 transitions, 1819 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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) [2024-10-31 22:05:27,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:27,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-31 22:05:27,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:05:29,937 INFO L124 PetriNetUnfolderBase]: 6270/10630 cut-off events. [2024-10-31 22:05:29,937 INFO L125 PetriNetUnfolderBase]: For 41098/41106 co-relation queries the response was YES. [2024-10-31 22:05:30,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45750 conditions, 10630 events. 6270/10630 cut-off events. For 41098/41106 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 74860 event pairs, 3397 based on Foata normal form. 96/10190 useless extension candidates. Maximal degree in co-relation 42412. Up to 7445 conditions per place. [2024-10-31 22:05:30,042 INFO L140 encePairwiseOnDemand]: 30/44 looper letters, 269 selfloop transitions, 128 changer transitions 9/408 dead transitions. [2024-10-31 22:05:30,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 408 transitions, 4689 flow [2024-10-31 22:05:30,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-31 22:05:30,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-10-31 22:05:30,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 296 transitions. [2024-10-31 22:05:30,047 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33636363636363636 [2024-10-31 22:05:30,047 INFO L175 Difference]: Start difference. First operand has 131 places, 188 transitions, 1819 flow. Second operand 20 states and 296 transitions. [2024-10-31 22:05:30,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 408 transitions, 4689 flow [2024-10-31 22:05:30,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 408 transitions, 4552 flow, removed 41 selfloop flow, removed 3 redundant places. [2024-10-31 22:05:30,583 INFO L231 Difference]: Finished difference. Result has 159 places, 282 transitions, 3359 flow [2024-10-31 22:05:30,584 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=1748, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3359, PETRI_PLACES=159, PETRI_TRANSITIONS=282} [2024-10-31 22:05:30,585 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 114 predicate places. [2024-10-31 22:05:30,585 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 282 transitions, 3359 flow [2024-10-31 22:05:30,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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) [2024-10-31 22:05:30,585 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:05:30,586 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:05:30,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:05:30,586 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-31 22:05:30,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:30,587 INFO L85 PathProgramCache]: Analyzing trace with hash -59745455, now seen corresponding path program 1 times [2024-10-31 22:05:30,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:30,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469584524] [2024-10-31 22:05:30,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:30,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:31,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:31,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:31,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469584524] [2024-10-31 22:05:31,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469584524] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:31,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:31,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:05:31,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624340955] [2024-10-31 22:05:31,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:31,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:05:31,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:31,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:05:31,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:05:31,191 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-31 22:05:31,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 282 transitions, 3359 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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) [2024-10-31 22:05:31,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:05:31,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-31 22:05:31,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand