./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX --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 78ae3f0dde82ce244d0cacebded5945a3f759d1f5aeba1d4553a1f59ef165385 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:29:45,284 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:29:45,386 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 18:29:45,393 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:29:45,397 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:29:45,437 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:29:45,438 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:29:45,439 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:29:45,440 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:29:45,442 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:29:45,442 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:29:45,443 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:29:45,443 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:29:45,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:29:45,446 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:29:45,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:29:45,447 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:29:45,448 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:29:45,448 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:29:45,448 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:29:45,449 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:29:45,451 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:29:45,451 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:29:45,451 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:29:45,452 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:29:45,452 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:29:45,453 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:29:45,453 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:29:45,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:29:45,454 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:29:45,454 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:29:45,455 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:29:45,455 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:29:45,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:29:45,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:29:45,456 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:29:45,457 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:29:45,457 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:29:45,457 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:29:45,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:29:45,458 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:29:45,459 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:29:45,459 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:29:45,459 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:29:45,460 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_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78ae3f0dde82ce244d0cacebded5945a3f759d1f5aeba1d4553a1f59ef165385 [2024-11-08 18:29:45,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:29:45,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:29:45,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:29:45,851 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:29:45,852 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:29:45,853 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i Unable to find full path for "g++" [2024-11-08 18:29:47,975 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:29:48,239 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:29:48,243 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i [2024-11-08 18:29:48,262 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/data/d5cb7a174/d99adc88efde4a228f171a6221c672d0/FLAG4d93a0aa0 [2024-11-08 18:29:48,278 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/data/d5cb7a174/d99adc88efde4a228f171a6221c672d0 [2024-11-08 18:29:48,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:29:48,282 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:29:48,284 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:29:48,284 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:29:48,293 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:29:48,294 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:29:48" (1/1) ... [2024-11-08 18:29:48,295 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@375c82c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:48, skipping insertion in model container [2024-11-08 18:29:48,296 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:29:48" (1/1) ... [2024-11-08 18:29:48,358 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:29:48,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:29:48,896 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:29:48,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:29:49,038 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:29:49,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:49 WrapperNode [2024-11-08 18:29:49,039 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:29:49,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:29:49,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:29:49,042 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:29:49,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:49" (1/1) ... [2024-11-08 18:29:49,068 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:49" (1/1) ... [2024-11-08 18:29:49,099 INFO L138 Inliner]: procedures = 171, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2024-11-08 18:29:49,102 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:29:49,103 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:29:49,103 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:29:49,104 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:29:49,117 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:49" (1/1) ... [2024-11-08 18:29:49,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:49" (1/1) ... [2024-11-08 18:29:49,121 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:49" (1/1) ... [2024-11-08 18:29:49,154 INFO L175 MemorySlicer]: Split 20 memory accesses to 5 slices as follows [2, 5, 6, 5, 2]. 30 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 5, 1, 5, 0]. The 3 writes are split as follows [0, 0, 2, 0, 1]. [2024-11-08 18:29:49,154 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:49" (1/1) ... [2024-11-08 18:29:49,155 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:49" (1/1) ... [2024-11-08 18:29:49,161 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:49" (1/1) ... [2024-11-08 18:29:49,165 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:49" (1/1) ... [2024-11-08 18:29:49,167 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:49" (1/1) ... [2024-11-08 18:29:49,168 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:49" (1/1) ... [2024-11-08 18:29:49,171 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:29:49,172 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:29:49,173 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:29:49,173 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:29:49,174 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:49" (1/1) ... [2024-11-08 18:29:49,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:29:49,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:29:49,213 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:29:49,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:29:49,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:29:49,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:29:49,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 18:29:49,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 18:29:49,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 18:29:49,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:29:49,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:29:49,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 18:29:49,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 18:29:49,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 18:29:49,255 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 18:29:49,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:29:49,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 18:29:49,255 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 18:29:49,255 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 18:29:49,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:29:49,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:29:49,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:29:49,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 18:29:49,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 18:29:49,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 18:29:49,257 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 18:29:49,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:29:49,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:29:49,261 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 18:29:49,421 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:29:49,424 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:29:49,737 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:29:49,737 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:29:49,966 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:29:49,967 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-08 18:29:49,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:29:49 BoogieIcfgContainer [2024-11-08 18:29:49,967 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:29:49,971 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:29:49,971 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:29:49,975 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:29:49,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:29:48" (1/3) ... [2024-11-08 18:29:49,976 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125af21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:29:49, skipping insertion in model container [2024-11-08 18:29:49,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:49" (2/3) ... [2024-11-08 18:29:49,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125af21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:29:49, skipping insertion in model container [2024-11-08 18:29:49,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:29:49" (3/3) ... [2024-11-08 18:29:49,979 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_37-indirect_racing.i [2024-11-08 18:29:50,018 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:29:50,018 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-08 18:29:50,018 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:29:50,070 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 18:29:50,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 63 transitions, 133 flow [2024-11-08 18:29:50,187 INFO L124 PetriNetUnfolderBase]: 15/81 cut-off events. [2024-11-08 18:29:50,187 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 18:29:50,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 81 events. 15/81 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 231 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 54. Up to 4 conditions per place. [2024-11-08 18:29:50,192 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 63 transitions, 133 flow [2024-11-08 18:29:50,196 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 62 transitions, 131 flow [2024-11-08 18:29:50,209 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:29:50,220 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;@7901196c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:29:50,220 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-08 18:29:50,232 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:29:50,233 INFO L124 PetriNetUnfolderBase]: 2/18 cut-off events. [2024-11-08 18:29:50,233 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:29:50,233 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:29:50,234 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 18:29:50,234 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 18:29:50,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:50,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1636026627, now seen corresponding path program 1 times [2024-11-08 18:29:50,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:50,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390622566] [2024-11-08 18:29:50,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:50,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:50,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:29:50,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:50,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390622566] [2024-11-08 18:29:50,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390622566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:50,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:50,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:29:50,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786317015] [2024-11-08 18:29:50,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:50,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:29:50,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:50,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:29:50,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:29:50,737 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 63 [2024-11-08 18:29:50,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 62 transitions, 131 flow. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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) [2024-11-08 18:29:50,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:29:50,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 63 [2024-11-08 18:29:50,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:29:51,000 INFO L124 PetriNetUnfolderBase]: 134/384 cut-off events. [2024-11-08 18:29:51,000 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 18:29:51,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 647 conditions, 384 events. 134/384 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1817 event pairs, 0 based on Foata normal form. 69/426 useless extension candidates. Maximal degree in co-relation 616. Up to 221 conditions per place. [2024-11-08 18:29:51,008 INFO L140 encePairwiseOnDemand]: 48/63 looper letters, 45 selfloop transitions, 3 changer transitions 0/75 dead transitions. [2024-11-08 18:29:51,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 75 transitions, 253 flow [2024-11-08 18:29:51,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:29:51,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:29:51,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 180 transitions. [2024-11-08 18:29:51,027 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-11-08 18:29:51,030 INFO L175 Difference]: Start difference. First operand has 55 places, 62 transitions, 131 flow. Second operand 4 states and 180 transitions. [2024-11-08 18:29:51,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 75 transitions, 253 flow [2024-11-08 18:29:51,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 75 transitions, 253 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:29:51,040 INFO L231 Difference]: Finished difference. Result has 57 places, 52 transitions, 123 flow [2024-11-08 18:29:51,042 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=123, PETRI_PLACES=57, PETRI_TRANSITIONS=52} [2024-11-08 18:29:51,046 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 2 predicate places. [2024-11-08 18:29:51,047 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 52 transitions, 123 flow [2024-11-08 18:29:51,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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) [2024-11-08 18:29:51,047 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:29:51,048 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 18:29:51,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:29:51,049 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 18:29:51,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:51,050 INFO L85 PathProgramCache]: Analyzing trace with hash -112363136, now seen corresponding path program 1 times [2024-11-08 18:29:51,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:51,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863644547] [2024-11-08 18:29:51,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:51,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:29:51,114 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:29:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:29:51,191 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:29:51,192 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:29:51,194 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-08 18:29:51,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-08 18:29:51,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-08 18:29:51,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-08 18:29:51,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-08 18:29:51,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-08 18:29:51,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-08 18:29:51,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-08 18:29:51,199 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-08 18:29:51,199 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-08 18:29:51,199 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-08 18:29:51,199 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-08 18:29:51,200 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-08 18:29:51,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:29:51,200 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 18:29:51,205 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 18:29:51,205 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 18:29:51,244 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 18:29:51,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 96 transitions, 208 flow [2024-11-08 18:29:51,284 INFO L124 PetriNetUnfolderBase]: 28/154 cut-off events. [2024-11-08 18:29:51,284 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 18:29:51,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 154 events. 28/154 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 529 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 97. Up to 8 conditions per place. [2024-11-08 18:29:51,287 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 96 transitions, 208 flow [2024-11-08 18:29:51,289 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 96 transitions, 208 flow [2024-11-08 18:29:51,293 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:29:51,294 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;@7901196c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:29:51,294 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-08 18:29:51,299 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:29:51,300 INFO L124 PetriNetUnfolderBase]: 2/18 cut-off events. [2024-11-08 18:29:51,300 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:29:51,301 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:29:51,301 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 18:29:51,302 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 18:29:51,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:51,303 INFO L85 PathProgramCache]: Analyzing trace with hash 181100898, now seen corresponding path program 1 times [2024-11-08 18:29:51,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:51,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558849548] [2024-11-08 18:29:51,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:51,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:51,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:29:51,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:51,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558849548] [2024-11-08 18:29:51,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558849548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:51,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:51,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:29:51,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295434115] [2024-11-08 18:29:51,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:51,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:29:51,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:51,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:29:51,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:29:51,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 96 [2024-11-08 18:29:51,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 96 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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) [2024-11-08 18:29:51,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:29:51,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 96 [2024-11-08 18:29:51,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:29:52,941 INFO L124 PetriNetUnfolderBase]: 3695/8030 cut-off events. [2024-11-08 18:29:52,941 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-11-08 18:29:52,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13802 conditions, 8030 events. 3695/8030 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 67549 event pairs, 1628 based on Foata normal form. 1468/8724 useless extension candidates. Maximal degree in co-relation 1094. Up to 5668 conditions per place. [2024-11-08 18:29:53,005 INFO L140 encePairwiseOnDemand]: 75/96 looper letters, 63 selfloop transitions, 3 changer transitions 0/107 dead transitions. [2024-11-08 18:29:53,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 107 transitions, 362 flow [2024-11-08 18:29:53,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:29:53,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:29:53,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 260 transitions. [2024-11-08 18:29:53,010 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6770833333333334 [2024-11-08 18:29:53,012 INFO L175 Difference]: Start difference. First operand has 83 places, 96 transitions, 208 flow. Second operand 4 states and 260 transitions. [2024-11-08 18:29:53,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 107 transitions, 362 flow [2024-11-08 18:29:53,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 107 transitions, 362 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:29:53,016 INFO L231 Difference]: Finished difference. Result has 88 places, 84 transitions, 206 flow [2024-11-08 18:29:53,017 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=206, PETRI_PLACES=88, PETRI_TRANSITIONS=84} [2024-11-08 18:29:53,018 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 5 predicate places. [2024-11-08 18:29:53,019 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 84 transitions, 206 flow [2024-11-08 18:29:53,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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) [2024-11-08 18:29:53,019 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:29:53,020 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:29:53,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:29:53,020 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 18:29:53,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:53,021 INFO L85 PathProgramCache]: Analyzing trace with hash -853027755, now seen corresponding path program 1 times [2024-11-08 18:29:53,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:53,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921186665] [2024-11-08 18:29:53,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:53,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:53,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:29:53,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:53,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921186665] [2024-11-08 18:29:53,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921186665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:53,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:53,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:29:53,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838280499] [2024-11-08 18:29:53,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:53,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:29:53,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:53,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:29:53,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:29:53,348 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 96 [2024-11-08 18:29:53,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 84 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:53,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:29:53,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 96 [2024-11-08 18:29:53,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:29:54,458 INFO L124 PetriNetUnfolderBase]: 2540/5650 cut-off events. [2024-11-08 18:29:54,458 INFO L125 PetriNetUnfolderBase]: For 253/585 co-relation queries the response was YES. [2024-11-08 18:29:54,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9970 conditions, 5650 events. 2540/5650 cut-off events. For 253/585 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 46531 event pairs, 815 based on Foata normal form. 118/5411 useless extension candidates. Maximal degree in co-relation 9868. Up to 3548 conditions per place. [2024-11-08 18:29:54,511 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 79 selfloop transitions, 6 changer transitions 0/131 dead transitions. [2024-11-08 18:29:54,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 131 transitions, 495 flow [2024-11-08 18:29:54,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:29:54,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 18:29:54,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 311 transitions. [2024-11-08 18:29:54,518 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6479166666666667 [2024-11-08 18:29:54,518 INFO L175 Difference]: Start difference. First operand has 88 places, 84 transitions, 206 flow. Second operand 5 states and 311 transitions. [2024-11-08 18:29:54,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 131 transitions, 495 flow [2024-11-08 18:29:54,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 131 transitions, 491 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:29:54,527 INFO L231 Difference]: Finished difference. Result has 94 places, 89 transitions, 248 flow [2024-11-08 18:29:54,527 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=248, PETRI_PLACES=94, PETRI_TRANSITIONS=89} [2024-11-08 18:29:54,528 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 11 predicate places. [2024-11-08 18:29:54,530 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 89 transitions, 248 flow [2024-11-08 18:29:54,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:29:54,530 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:29:54,531 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 18:29:54,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:29:54,531 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 18:29:54,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:54,533 INFO L85 PathProgramCache]: Analyzing trace with hash 834828816, now seen corresponding path program 1 times [2024-11-08 18:29:54,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:54,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103022370] [2024-11-08 18:29:54,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:54,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:54,691 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:29:54,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:54,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103022370] [2024-11-08 18:29:54,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103022370] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:29:54,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370839958] [2024-11-08 18:29:54,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:54,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:29:54,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:29:54,696 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:29:54,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:29:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:54,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:29:54,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:29:54,906 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:29:54,907 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:29:54,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370839958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:54,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:29:54,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 18:29:54,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452787522] [2024-11-08 18:29:54,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:54,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:29:54,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:54,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:29:54,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:29:55,003 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 96 [2024-11-08 18:29:55,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 89 transitions, 248 flow. Second operand has 6 states, 6 states have (on average 42.5) internal successors, (255), 6 states have internal predecessors, (255), 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) [2024-11-08 18:29:55,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:29:55,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 96 [2024-11-08 18:29:55,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:29:56,222 INFO L124 PetriNetUnfolderBase]: 3744/7811 cut-off events. [2024-11-08 18:29:56,223 INFO L125 PetriNetUnfolderBase]: For 1575/1575 co-relation queries the response was YES. [2024-11-08 18:29:56,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15260 conditions, 7811 events. 3744/7811 cut-off events. For 1575/1575 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 63486 event pairs, 438 based on Foata normal form. 152/7409 useless extension candidates. Maximal degree in co-relation 14110. Up to 2885 conditions per place. [2024-11-08 18:29:56,341 INFO L140 encePairwiseOnDemand]: 91/96 looper letters, 118 selfloop transitions, 6 changer transitions 0/165 dead transitions. [2024-11-08 18:29:56,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 165 transitions, 706 flow [2024-11-08 18:29:56,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:29:56,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:29:56,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 356 transitions. [2024-11-08 18:29:56,343 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6180555555555556 [2024-11-08 18:29:56,343 INFO L175 Difference]: Start difference. First operand has 94 places, 89 transitions, 248 flow. Second operand 6 states and 356 transitions. [2024-11-08 18:29:56,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 165 transitions, 706 flow [2024-11-08 18:29:56,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 165 transitions, 706 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:29:56,356 INFO L231 Difference]: Finished difference. Result has 98 places, 88 transitions, 256 flow [2024-11-08 18:29:56,356 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=256, PETRI_PLACES=98, PETRI_TRANSITIONS=88} [2024-11-08 18:29:56,357 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 15 predicate places. [2024-11-08 18:29:56,358 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 88 transitions, 256 flow [2024-11-08 18:29:56,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 42.5) internal successors, (255), 6 states have internal predecessors, (255), 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) [2024-11-08 18:29:56,358 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:29:56,359 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-08 18:29:56,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:29:56,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:29:56,560 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 18:29:56,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:56,561 INFO L85 PathProgramCache]: Analyzing trace with hash 109889983, now seen corresponding path program 1 times [2024-11-08 18:29:56,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:56,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553593027] [2024-11-08 18:29:56,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:56,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:56,623 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:29:56,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:56,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553593027] [2024-11-08 18:29:56,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553593027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:56,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:56,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:29:56,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891024685] [2024-11-08 18:29:56,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:56,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:29:56,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:56,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:29:56,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:29:56,649 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 96 [2024-11-08 18:29:56,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 88 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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) [2024-11-08 18:29:56,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:29:56,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 96 [2024-11-08 18:29:56,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:29:57,883 INFO L124 PetriNetUnfolderBase]: 3534/7621 cut-off events. [2024-11-08 18:29:57,884 INFO L125 PetriNetUnfolderBase]: For 2280/2280 co-relation queries the response was YES. [2024-11-08 18:29:57,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15086 conditions, 7621 events. 3534/7621 cut-off events. For 2280/2280 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 62317 event pairs, 1115 based on Foata normal form. 316/7513 useless extension candidates. Maximal degree in co-relation 14001. Up to 3807 conditions per place. [2024-11-08 18:29:57,957 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 95 selfloop transitions, 6 changer transitions 0/141 dead transitions. [2024-11-08 18:29:57,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 141 transitions, 606 flow [2024-11-08 18:29:57,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:29:57,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:29:57,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 246 transitions. [2024-11-08 18:29:57,960 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.640625 [2024-11-08 18:29:57,960 INFO L175 Difference]: Start difference. First operand has 98 places, 88 transitions, 256 flow. Second operand 4 states and 246 transitions. [2024-11-08 18:29:57,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 141 transitions, 606 flow [2024-11-08 18:29:57,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 141 transitions, 596 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 18:29:57,968 INFO L231 Difference]: Finished difference. Result has 97 places, 87 transitions, 258 flow [2024-11-08 18:29:57,969 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=258, PETRI_PLACES=97, PETRI_TRANSITIONS=87} [2024-11-08 18:29:57,970 INFO L277 CegarLoopForPetriNet]: 83 programPoint places, 14 predicate places. [2024-11-08 18:29:57,970 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 87 transitions, 258 flow [2024-11-08 18:29:57,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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) [2024-11-08 18:29:57,971 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:29:57,971 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1] [2024-11-08 18:29:57,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:29:57,972 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 18:29:57,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:57,973 INFO L85 PathProgramCache]: Analyzing trace with hash 967832620, now seen corresponding path program 1 times [2024-11-08 18:29:57,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:57,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766106709] [2024-11-08 18:29:57,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:57,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:29:57,996 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:29:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:29:58,022 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:29:58,023 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:29:58,023 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-11-08 18:29:58,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2024-11-08 18:29:58,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2024-11-08 18:29:58,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2024-11-08 18:29:58,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2024-11-08 18:29:58,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2024-11-08 18:29:58,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2024-11-08 18:29:58,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2024-11-08 18:29:58,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2024-11-08 18:29:58,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2024-11-08 18:29:58,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2024-11-08 18:29:58,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2024-11-08 18:29:58,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2024-11-08 18:29:58,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2024-11-08 18:29:58,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2024-11-08 18:29:58,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2024-11-08 18:29:58,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2024-11-08 18:29:58,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:29:58,031 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-08 18:29:58,032 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 18:29:58,032 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-08 18:29:58,090 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-08 18:29:58,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 129 transitions, 285 flow [2024-11-08 18:29:58,150 INFO L124 PetriNetUnfolderBase]: 46/252 cut-off events. [2024-11-08 18:29:58,150 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-08 18:29:58,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 252 events. 46/252 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 941 event pairs, 1 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 169. Up to 16 conditions per place. [2024-11-08 18:29:58,152 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 129 transitions, 285 flow [2024-11-08 18:29:58,155 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 111 places, 129 transitions, 285 flow [2024-11-08 18:29:58,156 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:29:58,156 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;@7901196c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:29:58,157 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-08 18:29:58,160 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:29:58,161 INFO L124 PetriNetUnfolderBase]: 2/18 cut-off events. [2024-11-08 18:29:58,161 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:29:58,161 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:29:58,161 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 18:29:58,162 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 18:29:58,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:29:58,162 INFO L85 PathProgramCache]: Analyzing trace with hash -297570783, now seen corresponding path program 1 times [2024-11-08 18:29:58,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:29:58,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619353444] [2024-11-08 18:29:58,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:29:58,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:29:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:29:58,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:29:58,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:29:58,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619353444] [2024-11-08 18:29:58,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619353444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:29:58,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:29:58,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:29:58,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531960473] [2024-11-08 18:29:58,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:29:58,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:29:58,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:29:58,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:29:58,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:29:58,260 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 129 [2024-11-08 18:29:58,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 129 transitions, 285 flow. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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) [2024-11-08 18:29:58,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:29:58,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 129 [2024-11-08 18:29:58,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:30:12,911 INFO L124 PetriNetUnfolderBase]: 69035/125618 cut-off events. [2024-11-08 18:30:12,912 INFO L125 PetriNetUnfolderBase]: For 1959/1959 co-relation queries the response was YES. [2024-11-08 18:30:13,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221188 conditions, 125618 events. 69035/125618 cut-off events. For 1959/1959 co-relation queries the response was YES. Maximal size of possible extension queue 3040. Compared 1319639 event pairs, 43096 based on Foata normal form. 26377/141781 useless extension candidates. Maximal degree in co-relation 14856. Up to 94408 conditions per place. [2024-11-08 18:30:13,965 INFO L140 encePairwiseOnDemand]: 102/129 looper letters, 76 selfloop transitions, 3 changer transitions 0/134 dead transitions. [2024-11-08 18:30:13,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 134 transitions, 453 flow [2024-11-08 18:30:13,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:30:13,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:30:13,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 335 transitions. [2024-11-08 18:30:13,968 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6492248062015504 [2024-11-08 18:30:13,968 INFO L175 Difference]: Start difference. First operand has 111 places, 129 transitions, 285 flow. Second operand 4 states and 335 transitions. [2024-11-08 18:30:13,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 134 transitions, 453 flow [2024-11-08 18:30:13,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 134 transitions, 453 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:30:13,974 INFO L231 Difference]: Finished difference. Result has 116 places, 111 transitions, 271 flow [2024-11-08 18:30:13,974 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=271, PETRI_PLACES=116, PETRI_TRANSITIONS=111} [2024-11-08 18:30:13,975 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 5 predicate places. [2024-11-08 18:30:13,975 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 111 transitions, 271 flow [2024-11-08 18:30:13,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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) [2024-11-08 18:30:13,976 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:30:13,976 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:30:13,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:30:13,976 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 18:30:13,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:13,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1496381493, now seen corresponding path program 1 times [2024-11-08 18:30:13,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:13,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060113951] [2024-11-08 18:30:13,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:13,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:14,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:30:14,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:14,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060113951] [2024-11-08 18:30:14,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060113951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:30:14,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:30:14,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:30:14,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121535085] [2024-11-08 18:30:14,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:14,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:30:14,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:14,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:30:14,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:30:14,120 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 129 [2024-11-08 18:30:14,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 111 transitions, 271 flow. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 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) [2024-11-08 18:30:14,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:30:14,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 129 [2024-11-08 18:30:14,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:30:23,909 INFO L124 PetriNetUnfolderBase]: 51340/92289 cut-off events. [2024-11-08 18:30:23,909 INFO L125 PetriNetUnfolderBase]: For 4250/8765 co-relation queries the response was YES. [2024-11-08 18:30:24,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166917 conditions, 92289 events. 51340/92289 cut-off events. For 4250/8765 co-relation queries the response was YES. Maximal size of possible extension queue 2568. Compared 936907 event pairs, 21153 based on Foata normal form. 1350/88517 useless extension candidates. Maximal degree in co-relation 166814. Up to 65859 conditions per place. [2024-11-08 18:30:24,502 INFO L140 encePairwiseOnDemand]: 122/129 looper letters, 117 selfloop transitions, 8 changer transitions 0/185 dead transitions. [2024-11-08 18:30:24,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 185 transitions, 718 flow [2024-11-08 18:30:24,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:30:24,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 18:30:24,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 421 transitions. [2024-11-08 18:30:24,505 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6527131782945736 [2024-11-08 18:30:24,505 INFO L175 Difference]: Start difference. First operand has 116 places, 111 transitions, 271 flow. Second operand 5 states and 421 transitions. [2024-11-08 18:30:24,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 185 transitions, 718 flow [2024-11-08 18:30:24,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 185 transitions, 714 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:30:24,516 INFO L231 Difference]: Finished difference. Result has 122 places, 118 transitions, 330 flow [2024-11-08 18:30:24,516 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=330, PETRI_PLACES=122, PETRI_TRANSITIONS=118} [2024-11-08 18:30:24,517 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 11 predicate places. [2024-11-08 18:30:24,517 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 118 transitions, 330 flow [2024-11-08 18:30:24,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 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) [2024-11-08 18:30:24,518 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:30:24,518 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 18:30:24,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:30:24,518 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 18:30:24,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:24,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1052784562, now seen corresponding path program 1 times [2024-11-08 18:30:24,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:24,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488648456] [2024-11-08 18:30:24,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:24,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:24,602 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:30:24,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:24,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488648456] [2024-11-08 18:30:24,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488648456] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:30:24,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290416560] [2024-11-08 18:30:24,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:24,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:30:24,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:30:24,605 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:30:24,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:30:24,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:24,712 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:30:24,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:30:24,763 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:30:24,764 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:30:24,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290416560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:30:24,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:30:24,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 18:30:24,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341753963] [2024-11-08 18:30:24,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:24,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:30:24,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:24,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:30:24,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:30:24,788 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 129 [2024-11-08 18:30:24,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 118 transitions, 330 flow. Second operand has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:30:24,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:30:24,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 129 [2024-11-08 18:30:24,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:30:38,880 INFO L124 PetriNetUnfolderBase]: 73396/129100 cut-off events. [2024-11-08 18:30:38,880 INFO L125 PetriNetUnfolderBase]: For 30549/30549 co-relation queries the response was YES. [2024-11-08 18:30:39,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256587 conditions, 129100 events. 73396/129100 cut-off events. For 30549/30549 co-relation queries the response was YES. Maximal size of possible extension queue 2988. Compared 1315829 event pairs, 13528 based on Foata normal form. 2120/122532 useless extension candidates. Maximal degree in co-relation 223479. Up to 51546 conditions per place. [2024-11-08 18:30:39,611 INFO L140 encePairwiseOnDemand]: 124/129 looper letters, 159 selfloop transitions, 6 changer transitions 0/220 dead transitions. [2024-11-08 18:30:39,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 220 transitions, 948 flow [2024-11-08 18:30:39,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:30:39,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:30:39,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 475 transitions. [2024-11-08 18:30:39,613 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6136950904392765 [2024-11-08 18:30:39,614 INFO L175 Difference]: Start difference. First operand has 122 places, 118 transitions, 330 flow. Second operand 6 states and 475 transitions. [2024-11-08 18:30:39,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 220 transitions, 948 flow [2024-11-08 18:30:39,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 220 transitions, 948 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:30:39,647 INFO L231 Difference]: Finished difference. Result has 126 places, 117 transitions, 338 flow [2024-11-08 18:30:39,647 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=338, PETRI_PLACES=126, PETRI_TRANSITIONS=117} [2024-11-08 18:30:39,648 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 15 predicate places. [2024-11-08 18:30:39,649 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 117 transitions, 338 flow [2024-11-08 18:30:39,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:30:39,649 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:30:39,650 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-08 18:30:39,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:30:39,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a6d9af3-7d62-4514-a460-3446be724b65/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 18:30:39,854 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 18:30:39,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:39,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1723417538, now seen corresponding path program 1 times [2024-11-08 18:30:39,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:30:39,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267278065] [2024-11-08 18:30:39,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:39,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:30:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:39,922 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:30:39,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:30:39,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267278065] [2024-11-08 18:30:39,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267278065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:30:39,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:30:39,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:30:39,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49587083] [2024-11-08 18:30:39,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:39,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:30:39,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:30:39,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:30:39,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:30:39,942 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 129 [2024-11-08 18:30:39,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 117 transitions, 338 flow. Second operand has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 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) [2024-11-08 18:30:39,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:30:39,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 129 [2024-11-08 18:30:39,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand