./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb4d6a4-18a4-46f2-a64a-7f415a61ed36/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb4d6a4-18a4-46f2-a64a-7f415a61ed36/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb4d6a4-18a4-46f2-a64a-7f415a61ed36/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb4d6a4-18a4-46f2-a64a-7f415a61ed36/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb4d6a4-18a4-46f2-a64a-7f415a61ed36/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb4d6a4-18a4-46f2-a64a-7f415a61ed36/bin/uautomizer-verify-VRDe98Ueme --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 da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:53:57,901 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:53:58,024 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb4d6a4-18a4-46f2-a64a-7f415a61ed36/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 11:53:58,033 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:53:58,034 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:53:58,068 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:53:58,069 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:53:58,069 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:53:58,070 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:53:58,071 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:53:58,072 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:53:58,073 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:53:58,074 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:53:58,074 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:53:58,075 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:53:58,076 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:53:58,076 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:53:58,077 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:53:58,077 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:53:58,078 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:53:58,078 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:53:58,079 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:53:58,080 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:53:58,080 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:53:58,081 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:53:58,081 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:53:58,082 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:53:58,082 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:53:58,083 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:53:58,083 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:53:58,084 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:53:58,084 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:53:58,085 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:53:58,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:53:58,085 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:53:58,086 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:53:58,086 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:53:58,086 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:53:58,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:53:58,087 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:53:58,087 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:53:58,088 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:53:58,088 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:53:58,088 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:53:58,088 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_7bb4d6a4-18a4-46f2-a64a-7f415a61ed36/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb4d6a4-18a4-46f2-a64a-7f415a61ed36/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b [2023-11-26 11:53:58,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:53:58,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:53:58,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:53:58,428 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:53:58,429 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:53:58,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb4d6a4-18a4-46f2-a64a-7f415a61ed36/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2023-11-26 11:54:01,606 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:54:01,930 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:54:01,931 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb4d6a4-18a4-46f2-a64a-7f415a61ed36/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2023-11-26 11:54:01,950 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb4d6a4-18a4-46f2-a64a-7f415a61ed36/bin/uautomizer-verify-VRDe98Ueme/data/0e36c5e81/836c9834d4bc4c62a26a17fd9c3e5969/FLAGdafc04dce [2023-11-26 11:54:01,970 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb4d6a4-18a4-46f2-a64a-7f415a61ed36/bin/uautomizer-verify-VRDe98Ueme/data/0e36c5e81/836c9834d4bc4c62a26a17fd9c3e5969 [2023-11-26 11:54:01,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:54:01,974 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:54:01,976 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:54:01,976 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:54:01,982 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:54:01,983 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:54:01" (1/1) ... [2023-11-26 11:54:01,984 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7950098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:01, skipping insertion in model container [2023-11-26 11:54:01,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:54:01" (1/1) ... [2023-11-26 11:54:02,050 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:54:02,699 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:54:02,716 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:54:02,812 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:54:02,956 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:54:02,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:02 WrapperNode [2023-11-26 11:54:02,957 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:54:02,958 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:54:02,958 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:54:02,958 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:54:02,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:02" (1/1) ... [2023-11-26 11:54:02,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:02" (1/1) ... [2023-11-26 11:54:03,042 INFO L138 Inliner]: procedures = 280, calls = 97, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 408 [2023-11-26 11:54:03,043 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:54:03,044 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:54:03,044 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:54:03,044 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:54:03,057 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:02" (1/1) ... [2023-11-26 11:54:03,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:02" (1/1) ... [2023-11-26 11:54:03,065 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:02" (1/1) ... [2023-11-26 11:54:03,093 INFO L175 MemorySlicer]: Split 51 memory accesses to 9 slices as follows [2, 23, 2, 5, 5, 5, 5, 2, 2]. 45 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 0, 0, 5, 5, 5, 5, 0, 0]. The 15 writes are split as follows [0, 12, 1, 0, 0, 0, 0, 1, 1]. [2023-11-26 11:54:03,093 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:02" (1/1) ... [2023-11-26 11:54:03,094 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:02" (1/1) ... [2023-11-26 11:54:03,113 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:02" (1/1) ... [2023-11-26 11:54:03,120 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:02" (1/1) ... [2023-11-26 11:54:03,125 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:02" (1/1) ... [2023-11-26 11:54:03,129 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:02" (1/1) ... [2023-11-26 11:54:03,137 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:54:03,138 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:54:03,138 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:54:03,138 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:54:03,139 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:02" (1/1) ... [2023-11-26 11:54:03,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:54:03,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb4d6a4-18a4-46f2-a64a-7f415a61ed36/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:54:03,187 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb4d6a4-18a4-46f2-a64a-7f415a61ed36/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:54:03,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb4d6a4-18a4-46f2-a64a-7f415a61ed36/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:54:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:54:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 11:54:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 11:54:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 11:54:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 11:54:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-26 11:54:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-26 11:54:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-26 11:54:03,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-26 11:54:03,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-26 11:54:03,227 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-26 11:54:03,227 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-26 11:54:03,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:54:03,228 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 11:54:03,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:54:03,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:54:03,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 11:54:03,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 11:54:03,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 11:54:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 11:54:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-26 11:54:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-26 11:54:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-26 11:54:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-26 11:54:03,230 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-26 11:54:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:54:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:54:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:54:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:54:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 11:54:03,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 11:54:03,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-26 11:54:03,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-26 11:54:03,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-26 11:54:03,231 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 11:54:03,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:54:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:54:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 11:54:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 11:54:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 11:54:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 11:54:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-26 11:54:03,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-26 11:54:03,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-26 11:54:03,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-26 11:54:03,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-26 11:54:03,233 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2023-11-26 11:54:03,233 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2023-11-26 11:54:03,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:54:03,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:54:03,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:54:03,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:54:03,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 11:54:03,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 11:54:03,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-26 11:54:03,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-26 11:54:03,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-26 11:54:03,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:54:03,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:54:03,237 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:54:03,477 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:54:03,479 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:54:04,197 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:54:04,570 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:54:04,570 INFO L309 CfgBuilder]: Removed 28 assume(true) statements. [2023-11-26 11:54:04,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:54:04 BoogieIcfgContainer [2023-11-26 11:54:04,571 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:54:04,573 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:54:04,573 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:54:04,577 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:54:04,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:54:01" (1/3) ... [2023-11-26 11:54:04,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3d4e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:54:04, skipping insertion in model container [2023-11-26 11:54:04,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:02" (2/3) ... [2023-11-26 11:54:04,580 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3d4e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:54:04, skipping insertion in model container [2023-11-26 11:54:04,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:54:04" (3/3) ... [2023-11-26 11:54:04,582 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_85-list2_racefree.i [2023-11-26 11:54:04,592 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:54:04,604 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:54:04,605 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-11-26 11:54:04,605 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:54:04,717 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-11-26 11:54:04,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 167 transitions, 373 flow [2023-11-26 11:54:04,995 INFO L124 PetriNetUnfolderBase]: 114/584 cut-off events. [2023-11-26 11:54:04,996 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-11-26 11:54:05,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 638 conditions, 584 events. 114/584 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3695 event pairs, 0 based on Foata normal form. 0/386 useless extension candidates. Maximal degree in co-relation 300. Up to 16 conditions per place. [2023-11-26 11:54:05,009 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 167 transitions, 373 flow [2023-11-26 11:54:05,031 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 167 transitions, 373 flow [2023-11-26 11:54:05,051 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:54:05,061 INFO L357 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, mHoare=true, 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;@4d93d938, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:54:05,062 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2023-11-26 11:54:05,073 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:54:05,073 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2023-11-26 11:54:05,073 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:54:05,074 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:05,075 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-26 11:54:05,075 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-11-26 11:54:05,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:05,081 INFO L85 PathProgramCache]: Analyzing trace with hash 982021890, now seen corresponding path program 1 times [2023-11-26 11:54:05,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:05,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850148588] [2023-11-26 11:54:05,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:05,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:05,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:05,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:05,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850148588] [2023-11-26 11:54:05,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850148588] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:05,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:05,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:05,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861656773] [2023-11-26 11:54:05,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:05,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:54:05,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:05,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:54:05,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:54:05,677 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 167 [2023-11-26 11:54:05,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 167 transitions, 373 flow. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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) [2023-11-26 11:54:05,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:05,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 167 [2023-11-26 11:54:05,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:35,999 INFO L124 PetriNetUnfolderBase]: 146523/254739 cut-off events. [2023-11-26 11:54:35,999 INFO L125 PetriNetUnfolderBase]: For 7536/7536 co-relation queries the response was YES. [2023-11-26 11:54:36,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 457502 conditions, 254739 events. 146523/254739 cut-off events. For 7536/7536 co-relation queries the response was YES. Maximal size of possible extension queue 4372. Compared 2537432 event pairs, 96720 based on Foata normal form. 25712/244591 useless extension candidates. Maximal degree in co-relation 391148. Up to 199294 conditions per place. [2023-11-26 11:54:37,847 INFO L140 encePairwiseOnDemand]: 139/167 looper letters, 100 selfloop transitions, 3 changer transitions 0/154 dead transitions. [2023-11-26 11:54:37,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 154 transitions, 553 flow [2023-11-26 11:54:37,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:54:37,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-26 11:54:37,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 332 transitions. [2023-11-26 11:54:37,863 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49700598802395207 [2023-11-26 11:54:37,864 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 332 transitions. [2023-11-26 11:54:37,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 332 transitions. [2023-11-26 11:54:37,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:37,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 332 transitions. [2023-11-26 11:54:37,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2023-11-26 11:54:37,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 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) [2023-11-26 11:54:37,880 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 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) [2023-11-26 11:54:37,882 INFO L175 Difference]: Start difference. First operand has 139 places, 167 transitions, 373 flow. Second operand 4 states and 332 transitions. [2023-11-26 11:54:37,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 154 transitions, 553 flow [2023-11-26 11:54:37,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 154 transitions, 553 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:54:37,992 INFO L231 Difference]: Finished difference. Result has 141 places, 143 transitions, 335 flow [2023-11-26 11:54:37,995 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=335, PETRI_PLACES=141, PETRI_TRANSITIONS=143} [2023-11-26 11:54:37,999 INFO L281 CegarLoopForPetriNet]: 139 programPoint places, 2 predicate places. [2023-11-26 11:54:37,999 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 143 transitions, 335 flow [2023-11-26 11:54:38,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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) [2023-11-26 11:54:38,000 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:38,001 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:38,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:54:38,001 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-11-26 11:54:38,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:38,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1902021630, now seen corresponding path program 1 times [2023-11-26 11:54:38,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:38,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192340693] [2023-11-26 11:54:38,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:38,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:54:38,057 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:54:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:54:38,149 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:54:38,150 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:54:38,152 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2023-11-26 11:54:38,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 31 remaining) [2023-11-26 11:54:38,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 31 remaining) [2023-11-26 11:54:38,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 31 remaining) [2023-11-26 11:54:38,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 31 remaining) [2023-11-26 11:54:38,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 31 remaining) [2023-11-26 11:54:38,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 31 remaining) [2023-11-26 11:54:38,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 31 remaining) [2023-11-26 11:54:38,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 31 remaining) [2023-11-26 11:54:38,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 31 remaining) [2023-11-26 11:54:38,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 31 remaining) [2023-11-26 11:54:38,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 31 remaining) [2023-11-26 11:54:38,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 31 remaining) [2023-11-26 11:54:38,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 31 remaining) [2023-11-26 11:54:38,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 31 remaining) [2023-11-26 11:54:38,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 31 remaining) [2023-11-26 11:54:38,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 31 remaining) [2023-11-26 11:54:38,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 31 remaining) [2023-11-26 11:54:38,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 31 remaining) [2023-11-26 11:54:38,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 31 remaining) [2023-11-26 11:54:38,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 31 remaining) [2023-11-26 11:54:38,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 31 remaining) [2023-11-26 11:54:38,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 31 remaining) [2023-11-26 11:54:38,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 31 remaining) [2023-11-26 11:54:38,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 31 remaining) [2023-11-26 11:54:38,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 31 remaining) [2023-11-26 11:54:38,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 31 remaining) [2023-11-26 11:54:38,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 31 remaining) [2023-11-26 11:54:38,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 31 remaining) [2023-11-26 11:54:38,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 31 remaining) [2023-11-26 11:54:38,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 31 remaining) [2023-11-26 11:54:38,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:54:38,174 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 11:54:38,177 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-26 11:54:38,178 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-26 11:54:38,368 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-11-26 11:54:38,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 231 places, 288 transitions, 660 flow [2023-11-26 11:54:39,083 INFO L124 PetriNetUnfolderBase]: 851/3411 cut-off events. [2023-11-26 11:54:39,083 INFO L125 PetriNetUnfolderBase]: For 602/653 co-relation queries the response was YES. [2023-11-26 11:54:39,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4059 conditions, 3411 events. 851/3411 cut-off events. For 602/653 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 30983 event pairs, 22 based on Foata normal form. 0/2324 useless extension candidates. Maximal degree in co-relation 2185. Up to 192 conditions per place. [2023-11-26 11:54:39,169 INFO L82 GeneralOperation]: Start removeDead. Operand has 231 places, 288 transitions, 660 flow [2023-11-26 11:54:39,242 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 231 places, 288 transitions, 660 flow [2023-11-26 11:54:39,244 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:54:39,245 INFO L357 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, mHoare=true, 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;@4d93d938, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:54:39,246 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2023-11-26 11:54:39,252 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:54:39,252 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-11-26 11:54:39,252 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:54:39,252 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:39,252 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-26 11:54:39,253 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-26 11:54:39,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:39,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1251242571, now seen corresponding path program 1 times [2023-11-26 11:54:39,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:39,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144901098] [2023-11-26 11:54:39,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:39,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:39,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:39,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:39,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144901098] [2023-11-26 11:54:39,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144901098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:39,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:39,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:39,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289505529] [2023-11-26 11:54:39,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:39,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:54:39,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:39,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:54:39,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:54:39,460 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 288 [2023-11-26 11:54:39,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 288 transitions, 660 flow. Second operand has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 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) [2023-11-26 11:54:39,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:39,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 288 [2023-11-26 11:54:39,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand