./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.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_2d49a124-ed90-471e-b29e-609e5e816198/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d49a124-ed90-471e-b29e-609e5e816198/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_2d49a124-ed90-471e-b29e-609e5e816198/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d49a124-ed90-471e-b29e-609e5e816198/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d49a124-ed90-471e-b29e-609e5e816198/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_2d49a124-ed90-471e-b29e-609e5e816198/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 6ac894f5c6207d1329786eb676509b79ca36f8c33f880cc59ffa30652ab92765 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:41:29,331 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:41:29,448 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d49a124-ed90-471e-b29e-609e5e816198/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 18:41:29,459 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:41:29,461 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:41:29,520 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:41:29,522 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:41:29,523 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:41:29,524 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:41:29,526 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:41:29,526 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:41:29,527 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:41:29,527 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:41:29,528 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:41:29,528 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:41:29,531 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:41:29,531 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:41:29,532 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:41:29,532 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:41:29,532 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:41:29,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:41:29,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:41:29,538 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:41:29,538 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:41:29,538 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:41:29,539 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:41:29,539 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:41:29,539 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:41:29,540 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:41:29,540 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:41:29,540 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:41:29,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:41:29,544 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:41:29,545 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:41:29,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:41:29,562 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:41:29,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:41:29,563 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:41:29,563 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:41:29,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:41:29,564 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:41:29,565 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:41:29,565 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:41:29,565 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:41:29,566 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_2d49a124-ed90-471e-b29e-609e5e816198/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d49a124-ed90-471e-b29e-609e5e816198/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ac894f5c6207d1329786eb676509b79ca36f8c33f880cc59ffa30652ab92765 [2024-11-08 18:41:29,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:41:29,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:41:29,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:41:29,989 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:41:29,992 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:41:29,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d49a124-ed90-471e-b29e-609e5e816198/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i Unable to find full path for "g++" [2024-11-08 18:41:32,233 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:41:32,581 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:41:32,581 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d49a124-ed90-471e-b29e-609e5e816198/sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i [2024-11-08 18:41:32,602 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d49a124-ed90-471e-b29e-609e5e816198/bin/uautomizer-verify-jihMAELWvX/data/9f32f7f1b/1c6928a0f63d4a1c8e0e7fd0d913f5e4/FLAGbe59ec704 [2024-11-08 18:41:32,620 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d49a124-ed90-471e-b29e-609e5e816198/bin/uautomizer-verify-jihMAELWvX/data/9f32f7f1b/1c6928a0f63d4a1c8e0e7fd0d913f5e4 [2024-11-08 18:41:32,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:41:32,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:41:32,627 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:41:32,627 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:41:32,635 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:41:32,635 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:41:32" (1/1) ... [2024-11-08 18:41:32,639 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7af037a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:32, skipping insertion in model container [2024-11-08 18:41:32,640 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:41:32" (1/1) ... [2024-11-08 18:41:32,740 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:41:33,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:41:33,567 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:41:33,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:41:33,837 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:41:33,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:33 WrapperNode [2024-11-08 18:41:33,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:41:33,839 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:41:33,840 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:41:33,840 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:41:33,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:33" (1/1) ... [2024-11-08 18:41:33,881 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:33" (1/1) ... [2024-11-08 18:41:33,914 INFO L138 Inliner]: procedures = 279, calls = 68, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 226 [2024-11-08 18:41:33,914 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:41:33,915 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:41:33,915 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:41:33,915 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:41:33,932 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:33" (1/1) ... [2024-11-08 18:41:33,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:33" (1/1) ... [2024-11-08 18:41:33,942 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:33" (1/1) ... [2024-11-08 18:41:33,975 INFO L175 MemorySlicer]: Split 35 memory accesses to 7 slices as follows [2, 2, 14, 5, 5, 5, 2]. 40 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 0, 5, 5, 5, 0]. The 10 writes are split as follows [0, 1, 8, 0, 0, 0, 1]. [2024-11-08 18:41:33,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:33" (1/1) ... [2024-11-08 18:41:33,976 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:33" (1/1) ... [2024-11-08 18:41:33,991 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:33" (1/1) ... [2024-11-08 18:41:34,001 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:33" (1/1) ... [2024-11-08 18:41:34,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:33" (1/1) ... [2024-11-08 18:41:34,009 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:33" (1/1) ... [2024-11-08 18:41:34,015 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:41:34,016 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:41:34,017 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:41:34,017 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:41:34,018 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:33" (1/1) ... [2024-11-08 18:41:34,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:41:34,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d49a124-ed90-471e-b29e-609e5e816198/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:41:34,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d49a124-ed90-471e-b29e-609e5e816198/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:41:34,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d49a124-ed90-471e-b29e-609e5e816198/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:41:34,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 18:41:34,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 18:41:34,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 18:41:34,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 18:41:34,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-08 18:41:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-08 18:41:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-08 18:41:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-08 18:41:34,122 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-08 18:41:34,123 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-08 18:41:34,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:41:34,123 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 18:41:34,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:41:34,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:41:34,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 18:41:34,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 18:41:34,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 18:41:34,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-08 18:41:34,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-08 18:41:34,125 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-08 18:41:34,125 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-08 18:41:34,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:41:34,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:41:34,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 18:41:34,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 18:41:34,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 18:41:34,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-08 18:41:34,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-08 18:41:34,128 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 18:41:34,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 18:41:34,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:41:34,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 18:41:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 18:41:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 18:41:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-08 18:41:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-08 18:41:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-08 18:41:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-08 18:41:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:41:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:41:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 18:41:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 18:41:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 18:41:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 18:41:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 18:41:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:41:34,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:41:34,137 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 18:41:34,444 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:41:34,447 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:41:35,129 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:41:35,130 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:41:35,501 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:41:35,501 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-08 18:41:35,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:41:35 BoogieIcfgContainer [2024-11-08 18:41:35,502 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:41:35,504 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:41:35,506 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:41:35,510 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:41:35,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:41:32" (1/3) ... [2024-11-08 18:41:35,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4571a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:41:35, skipping insertion in model container [2024-11-08 18:41:35,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:41:33" (2/3) ... [2024-11-08 18:41:35,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4571a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:41:35, skipping insertion in model container [2024-11-08 18:41:35,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:41:35" (3/3) ... [2024-11-08 18:41:35,517 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_82-list_racefree.i [2024-11-08 18:41:35,540 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:41:35,540 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-08 18:41:35,541 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:41:35,660 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-08 18:41:35,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 106 transitions, 232 flow [2024-11-08 18:41:35,852 INFO L124 PetriNetUnfolderBase]: 48/239 cut-off events. [2024-11-08 18:41:35,853 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-08 18:41:35,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 239 events. 48/239 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 968 event pairs, 0 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 120. Up to 8 conditions per place. [2024-11-08 18:41:35,864 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 106 transitions, 232 flow [2024-11-08 18:41:35,871 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 106 transitions, 232 flow [2024-11-08 18:41:35,882 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:41:35,890 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;@6de23bb5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:41:35,891 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-08 18:41:35,900 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:41:35,900 INFO L124 PetriNetUnfolderBase]: 3/19 cut-off events. [2024-11-08 18:41:35,900 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:41:35,900 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:41:35,901 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 18:41:35,902 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-08 18:41:35,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:35,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1062864530, now seen corresponding path program 1 times [2024-11-08 18:41:35,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:35,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390769309] [2024-11-08 18:41:35,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:35,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:36,499 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 18:41:36,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:36,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390769309] [2024-11-08 18:41:36,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390769309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:36,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:36,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:41:36,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989069193] [2024-11-08 18:41:36,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:36,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:41:36,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:36,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:41:36,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:41:36,591 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 106 [2024-11-08 18:41:36,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 106 transitions, 232 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 18:41:36,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:41:36,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 106 [2024-11-08 18:41:36,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:41:38,119 INFO L124 PetriNetUnfolderBase]: 2449/5018 cut-off events. [2024-11-08 18:41:38,119 INFO L125 PetriNetUnfolderBase]: For 162/162 co-relation queries the response was YES. [2024-11-08 18:41:38,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8912 conditions, 5018 events. 2449/5018 cut-off events. For 162/162 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 36988 event pairs, 1176 based on Foata normal form. 337/5017 useless extension candidates. Maximal degree in co-relation 7834. Up to 3792 conditions per place. [2024-11-08 18:41:38,172 INFO L140 encePairwiseOnDemand]: 88/106 looper letters, 60 selfloop transitions, 3 changer transitions 0/104 dead transitions. [2024-11-08 18:41:38,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 104 transitions, 354 flow [2024-11-08 18:41:38,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:41:38,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:41:38,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 242 transitions. [2024-11-08 18:41:38,191 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5707547169811321 [2024-11-08 18:41:38,194 INFO L175 Difference]: Start difference. First operand has 90 places, 106 transitions, 232 flow. Second operand 4 states and 242 transitions. [2024-11-08 18:41:38,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 104 transitions, 354 flow [2024-11-08 18:41:38,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 104 transitions, 354 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:41:38,211 INFO L231 Difference]: Finished difference. Result has 92 places, 93 transitions, 218 flow [2024-11-08 18:41:38,214 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=218, PETRI_PLACES=92, PETRI_TRANSITIONS=93} [2024-11-08 18:41:38,221 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 2 predicate places. [2024-11-08 18:41:38,221 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 93 transitions, 218 flow [2024-11-08 18:41:38,222 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 18:41:38,222 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:41:38,222 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 18:41:38,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:41:38,224 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-08 18:41:38,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:38,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1610874525, now seen corresponding path program 1 times [2024-11-08 18:41:38,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:38,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999069682] [2024-11-08 18:41:38,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:38,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:41:38,321 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:41:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:41:38,380 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:41:38,381 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:41:38,383 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-08 18:41:38,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-11-08 18:41:38,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-11-08 18:41:38,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-11-08 18:41:38,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-11-08 18:41:38,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-11-08 18:41:38,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-11-08 18:41:38,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-11-08 18:41:38,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2024-11-08 18:41:38,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2024-11-08 18:41:38,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2024-11-08 18:41:38,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2024-11-08 18:41:38,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-11-08 18:41:38,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 18 remaining) [2024-11-08 18:41:38,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-11-08 18:41:38,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-11-08 18:41:38,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-11-08 18:41:38,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-11-08 18:41:38,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:41:38,393 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 18:41:38,398 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 18:41:38,398 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 18:41:38,569 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-08 18:41:38,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 169 transitions, 382 flow [2024-11-08 18:41:38,735 INFO L124 PetriNetUnfolderBase]: 179/809 cut-off events. [2024-11-08 18:41:38,736 INFO L125 PetriNetUnfolderBase]: For 72/78 co-relation queries the response was YES. [2024-11-08 18:41:38,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 898 conditions, 809 events. 179/809 cut-off events. For 72/78 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4881 event pairs, 1 based on Foata normal form. 0/543 useless extension candidates. Maximal degree in co-relation 502. Up to 32 conditions per place. [2024-11-08 18:41:38,744 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 169 transitions, 382 flow [2024-11-08 18:41:38,757 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 169 transitions, 382 flow [2024-11-08 18:41:38,759 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:41:38,761 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;@6de23bb5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:41:38,763 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-08 18:41:38,769 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:41:38,769 INFO L124 PetriNetUnfolderBase]: 3/19 cut-off events. [2024-11-08 18:41:38,769 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:41:38,769 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:41:38,770 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 18:41:38,771 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-08 18:41:38,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:41:38,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1708389163, now seen corresponding path program 1 times [2024-11-08 18:41:38,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:41:38,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019976605] [2024-11-08 18:41:38,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:38,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:41:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:38,918 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 18:41:38,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:41:38,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019976605] [2024-11-08 18:41:38,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019976605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:41:38,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:41:38,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:41:38,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784463535] [2024-11-08 18:41:38,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:41:38,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:41:38,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:41:38,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:41:38,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:41:38,942 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 169 [2024-11-08 18:41:38,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 169 transitions, 382 flow. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:41:38,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:41:38,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 169 [2024-11-08 18:41:38,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand