./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c --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_7b853630-b39a-42ad-aaab-2f8775ecb121/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b853630-b39a-42ad-aaab-2f8775ecb121/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_7b853630-b39a-42ad-aaab-2f8775ecb121/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b853630-b39a-42ad-aaab-2f8775ecb121/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b853630-b39a-42ad-aaab-2f8775ecb121/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_7b853630-b39a-42ad-aaab-2f8775ecb121/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 f044966ade6b1d79627a5dcb577ad24e14a4ae2ab2467e458af5fa83aa6cd521 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:06:15,912 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:06:16,027 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b853630-b39a-42ad-aaab-2f8775ecb121/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 12:06:16,036 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:06:16,037 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:06:16,062 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:06:16,063 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:06:16,063 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:06:16,064 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:06:16,065 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:06:16,066 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:06:16,066 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:06:16,070 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:06:16,075 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:06:16,076 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:06:16,076 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:06:16,078 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:06:16,078 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:06:16,079 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:06:16,079 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:06:16,080 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:06:16,081 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:06:16,081 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:06:16,082 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:06:16,083 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 12:06:16,083 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:06:16,084 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:06:16,084 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:06:16,085 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:06:16,086 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:06:16,087 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:06:16,088 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:06:16,088 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:06:16,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:06:16,089 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:06:16,089 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:06:16,089 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:06:16,090 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:06:16,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:06:16,090 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:06:16,090 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:06:16,091 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:06:16,091 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:06:16,091 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:06:16,092 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_7b853630-b39a-42ad-aaab-2f8775ecb121/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b853630-b39a-42ad-aaab-2f8775ecb121/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f044966ade6b1d79627a5dcb577ad24e14a4ae2ab2467e458af5fa83aa6cd521 [2023-11-26 12:06:16,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:06:16,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:06:16,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:06:16,484 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:06:16,485 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:06:16,486 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b853630-b39a-42ad-aaab-2f8775ecb121/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2023-11-26 12:06:19,594 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:06:19,841 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:06:19,842 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b853630-b39a-42ad-aaab-2f8775ecb121/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2023-11-26 12:06:19,858 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b853630-b39a-42ad-aaab-2f8775ecb121/bin/uautomizer-verify-VRDe98Ueme/data/ad87d9723/8d091173ded94c6cad32117ea1b6837e/FLAG4fbd0afb8 [2023-11-26 12:06:19,872 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b853630-b39a-42ad-aaab-2f8775ecb121/bin/uautomizer-verify-VRDe98Ueme/data/ad87d9723/8d091173ded94c6cad32117ea1b6837e [2023-11-26 12:06:19,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:06:19,877 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:06:19,878 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:06:19,878 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:06:19,884 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:06:19,885 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:06:19" (1/1) ... [2023-11-26 12:06:19,886 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2941748f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:19, skipping insertion in model container [2023-11-26 12:06:19,887 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:06:19" (1/1) ... [2023-11-26 12:06:19,915 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:06:20,209 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:06:20,230 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:06:20,259 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:06:20,268 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:06:20,268 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:06:20,276 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:06:20,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:20 WrapperNode [2023-11-26 12:06:20,276 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:06:20,278 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:06:20,278 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:06:20,278 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:06:20,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:20" (1/1) ... [2023-11-26 12:06:20,295 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:20" (1/1) ... [2023-11-26 12:06:20,330 INFO L138 Inliner]: procedures = 24, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 273 [2023-11-26 12:06:20,331 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:06:20,332 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:06:20,332 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:06:20,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:06:20,343 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:20" (1/1) ... [2023-11-26 12:06:20,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:20" (1/1) ... [2023-11-26 12:06:20,349 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:20" (1/1) ... [2023-11-26 12:06:20,368 INFO L175 MemorySlicer]: Split 12 memory accesses to 6 slices as follows [2, 2, 2, 2, 2, 2]. 17 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 5 writes are split as follows [0, 1, 1, 1, 1, 1]. [2023-11-26 12:06:20,368 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:20" (1/1) ... [2023-11-26 12:06:20,369 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:20" (1/1) ... [2023-11-26 12:06:20,379 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:20" (1/1) ... [2023-11-26 12:06:20,381 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:20" (1/1) ... [2023-11-26 12:06:20,384 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:20" (1/1) ... [2023-11-26 12:06:20,387 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:20" (1/1) ... [2023-11-26 12:06:20,392 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:06:20,393 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:06:20,393 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:06:20,393 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:06:20,394 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:20" (1/1) ... [2023-11-26 12:06:20,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:06:20,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b853630-b39a-42ad-aaab-2f8775ecb121/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:20,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b853630-b39a-42ad-aaab-2f8775ecb121/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:06:20,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b853630-b39a-42ad-aaab-2f8775ecb121/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:06:20,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:06:20,480 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 12:06:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 12:06:20,480 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 12:06:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 12:06:20,480 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-26 12:06:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-26 12:06:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-26 12:06:20,481 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-26 12:06:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:06:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 12:06:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 12:06:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 12:06:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 12:06:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 12:06:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-26 12:06:20,482 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-26 12:06:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:06:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 12:06:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 12:06:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 12:06:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 12:06:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 12:06:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 12:06:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 12:06:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 12:06:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:06:20,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:06:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 12:06:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 12:06:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 12:06:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 12:06:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 12:06:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 12:06:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:06:20,487 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 12:06:20,626 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:06:20,628 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:06:21,094 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:06:21,465 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:06:21,465 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 12:06:21,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:06:21 BoogieIcfgContainer [2023-11-26 12:06:21,466 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:06:21,469 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:06:21,469 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:06:21,472 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:06:21,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:06:19" (1/3) ... [2023-11-26 12:06:21,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb321e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:06:21, skipping insertion in model container [2023-11-26 12:06:21,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:20" (2/3) ... [2023-11-26 12:06:21,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb321e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:06:21, skipping insertion in model container [2023-11-26 12:06:21,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:06:21" (3/3) ... [2023-11-26 12:06:21,475 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2023-11-26 12:06:21,487 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 12:06:21,498 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:06:21,499 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-11-26 12:06:21,499 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 12:06:21,597 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-11-26 12:06:21,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 77 transitions, 189 flow [2023-11-26 12:06:21,704 INFO L124 PetriNetUnfolderBase]: 0/72 cut-off events. [2023-11-26 12:06:21,705 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-26 12:06:21,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 72 events. 0/72 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 205 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-11-26 12:06:21,707 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 77 transitions, 189 flow [2023-11-26 12:06:21,712 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 70 transitions, 167 flow [2023-11-26 12:06:21,723 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:06:21,730 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;@4d88824e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:06:21,731 INFO L358 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2023-11-26 12:06:21,736 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 12:06:21,736 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-26 12:06:21,736 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:06:21,737 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:06:21,737 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-26 12:06:21,738 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-26 12:06:21,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:21,744 INFO L85 PathProgramCache]: Analyzing trace with hash 18437887, now seen corresponding path program 1 times [2023-11-26 12:06:21,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:21,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068792347] [2023-11-26 12:06:21,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:21,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:22,214 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 12:06:22,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:22,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068792347] [2023-11-26 12:06:22,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068792347] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:22,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:22,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 12:06:22,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575185899] [2023-11-26 12:06:22,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:22,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:06:22,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:22,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:06:22,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:06:22,273 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 77 [2023-11-26 12:06:22,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 70 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 12:06:22,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:06:22,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 77 [2023-11-26 12:06:22,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:06:59,147 INFO L124 PetriNetUnfolderBase]: 317149/412655 cut-off events. [2023-11-26 12:06:59,147 INFO L125 PetriNetUnfolderBase]: For 13853/13853 co-relation queries the response was YES. [2023-11-26 12:06:59,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 828110 conditions, 412655 events. 317149/412655 cut-off events. For 13853/13853 co-relation queries the response was YES. Maximal size of possible extension queue 16266. Compared 3041822 event pairs, 317149 based on Foata normal form. 0/257896 useless extension candidates. Maximal degree in co-relation 741501. Up to 401406 conditions per place. [2023-11-26 12:07:02,183 INFO L140 encePairwiseOnDemand]: 71/77 looper letters, 53 selfloop transitions, 1 changer transitions 0/65 dead transitions. [2023-11-26 12:07:02,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 65 transitions, 265 flow [2023-11-26 12:07:02,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:07:02,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:07:02,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 107 transitions. [2023-11-26 12:07:02,196 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46320346320346323 [2023-11-26 12:07:02,197 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 107 transitions. [2023-11-26 12:07:02,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 107 transitions. [2023-11-26 12:07:02,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:07:02,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 107 transitions. [2023-11-26 12:07:02,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:07:02,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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 12:07:02,216 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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 12:07:02,218 INFO L175 Difference]: Start difference. First operand has 86 places, 70 transitions, 167 flow. Second operand 3 states and 107 transitions. [2023-11-26 12:07:02,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 65 transitions, 265 flow [2023-11-26 12:07:04,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 65 transitions, 248 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-11-26 12:07:04,449 INFO L231 Difference]: Finished difference. Result has 74 places, 65 transitions, 142 flow [2023-11-26 12:07:04,453 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=74, PETRI_TRANSITIONS=65} [2023-11-26 12:07:04,456 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -12 predicate places. [2023-11-26 12:07:04,457 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 65 transitions, 142 flow [2023-11-26 12:07:04,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 12:07:04,457 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:07:04,458 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-26 12:07:04,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:07:04,458 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-26 12:07:04,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:07:04,460 INFO L85 PathProgramCache]: Analyzing trace with hash 18437888, now seen corresponding path program 1 times [2023-11-26 12:07:04,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:07:04,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592845145] [2023-11-26 12:07:04,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:07:04,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:07:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:07:04,656 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 12:07:04,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:07:04,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592845145] [2023-11-26 12:07:04,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592845145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:07:04,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:07:04,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 12:07:04,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325935136] [2023-11-26 12:07:04,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:07:04,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:07:04,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:07:04,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:07:04,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:07:04,661 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 77 [2023-11-26 12:07:04,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 65 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 12:07:04,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:07:04,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 77 [2023-11-26 12:07:04,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand