./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-barrier.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_70c8ae4c-c1bd-4bca-b83e-e71c2950aad9/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70c8ae4c-c1bd-4bca-b83e-e71c2950aad9/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_70c8ae4c-c1bd-4bca-b83e-e71c2950aad9/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70c8ae4c-c1bd-4bca-b83e-e71c2950aad9/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70c8ae4c-c1bd-4bca-b83e-e71c2950aad9/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_70c8ae4c-c1bd-4bca-b83e-e71c2950aad9/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 504de2e820c504d0b98f5b71c19407f1b43c0dd9338639fad4f2fe6ea2f6854f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:51:15,636 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:51:15,750 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70c8ae4c-c1bd-4bca-b83e-e71c2950aad9/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 11:51:15,757 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:51:15,758 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:51:15,795 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:51:15,797 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:51:15,797 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:51:15,798 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:51:15,803 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:51:15,804 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:51:15,805 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:51:15,806 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:51:15,807 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:51:15,808 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:51:15,808 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:51:15,809 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:51:15,809 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:51:15,810 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:51:15,810 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:51:15,811 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:51:15,811 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:51:15,812 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:51:15,812 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:51:15,813 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:51:15,813 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:51:15,814 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:51:15,814 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:51:15,815 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:51:15,815 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:51:15,817 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:51:15,817 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:51:15,817 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:51:15,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:15,818 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:51:15,818 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:51:15,819 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:51:15,819 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:51:15,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:51:15,819 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:51:15,820 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:51:15,820 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:51:15,820 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:51:15,821 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:51:15,821 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_70c8ae4c-c1bd-4bca-b83e-e71c2950aad9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70c8ae4c-c1bd-4bca-b83e-e71c2950aad9/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 504de2e820c504d0b98f5b71c19407f1b43c0dd9338639fad4f2fe6ea2f6854f [2023-11-26 11:51:16,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:51:16,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:51:16,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:51:16,109 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:51:16,109 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:51:16,111 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70c8ae4c-c1bd-4bca-b83e-e71c2950aad9/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2023-11-26 11:51:19,318 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:51:19,594 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:51:19,595 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70c8ae4c-c1bd-4bca-b83e-e71c2950aad9/sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2023-11-26 11:51:19,606 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70c8ae4c-c1bd-4bca-b83e-e71c2950aad9/bin/uautomizer-verify-VRDe98Ueme/data/f34d4ded8/be2f9ce3f3654841b57b89cc68657c2b/FLAG3b11da559 [2023-11-26 11:51:19,624 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70c8ae4c-c1bd-4bca-b83e-e71c2950aad9/bin/uautomizer-verify-VRDe98Ueme/data/f34d4ded8/be2f9ce3f3654841b57b89cc68657c2b [2023-11-26 11:51:19,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:51:19,632 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:51:19,635 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:19,635 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:51:19,641 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:51:19,641 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:19" (1/1) ... [2023-11-26 11:51:19,643 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7191d80a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:19, skipping insertion in model container [2023-11-26 11:51:19,643 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:19" (1/1) ... [2023-11-26 11:51:19,691 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:51:19,937 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:19,954 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:51:19,991 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:20,001 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:20,002 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:20,010 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:51:20,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:20 WrapperNode [2023-11-26 11:51:20,010 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:20,012 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:20,012 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:51:20,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:51:20,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:20" (1/1) ... [2023-11-26 11:51:20,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:20" (1/1) ... [2023-11-26 11:51:20,084 INFO L138 Inliner]: procedures = 25, calls = 99, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 288 [2023-11-26 11:51:20,093 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:20,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:51:20,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:51:20,094 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:51:20,105 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:20" (1/1) ... [2023-11-26 11:51:20,105 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:20" (1/1) ... [2023-11-26 11:51:20,109 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:20" (1/1) ... [2023-11-26 11:51:20,136 INFO L175 MemorySlicer]: Split 14 memory accesses to 7 slices as follows [2, 2, 2, 2, 2, 2, 2]. 14 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0]. The 6 writes are split as follows [0, 1, 1, 1, 1, 1, 1]. [2023-11-26 11:51:20,137 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:20" (1/1) ... [2023-11-26 11:51:20,137 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:20" (1/1) ... [2023-11-26 11:51:20,157 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:20" (1/1) ... [2023-11-26 11:51:20,159 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:20" (1/1) ... [2023-11-26 11:51:20,162 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:20" (1/1) ... [2023-11-26 11:51:20,180 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:20" (1/1) ... [2023-11-26 11:51:20,185 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:51:20,187 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:51:20,187 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:51:20,187 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:51:20,188 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:20" (1/1) ... [2023-11-26 11:51:20,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:20,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70c8ae4c-c1bd-4bca-b83e-e71c2950aad9/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:20,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70c8ae4c-c1bd-4bca-b83e-e71c2950aad9/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:20,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70c8ae4c-c1bd-4bca-b83e-e71c2950aad9/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:51:20,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:51:20,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:51:20,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:51:20,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:51:20,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:51:20,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:51:20,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 11:51:20,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 11:51:20,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-26 11:51:20,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:51:20,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:51:20,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 11:51:20,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 11:51:20,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 11:51:20,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 11:51:20,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-26 11:51:20,281 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 11:51:20,282 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 11:51:20,282 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 11:51:20,282 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 11:51:20,283 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-26 11:51:20,283 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-26 11:51:20,283 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-26 11:51:20,284 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-26 11:51:20,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:51:20,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:51:20,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:51:20,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:51:20,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 11:51:20,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 11:51:20,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-26 11:51:20,286 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-26 11:51:20,287 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-26 11:51:20,287 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-26 11:51:20,287 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-26 11:51:20,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 11:51:20,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 11:51:20,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:51:20,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:51:20,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:51:20,290 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 11:51:20,490 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:51:20,493 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:51:20,989 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:51:21,533 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:51:21,533 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:51:21,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:21 BoogieIcfgContainer [2023-11-26 11:51:21,534 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:51:21,538 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:51:21,538 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:51:21,542 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:51:21,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:51:19" (1/3) ... [2023-11-26 11:51:21,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a4c749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:21, skipping insertion in model container [2023-11-26 11:51:21,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:20" (2/3) ... [2023-11-26 11:51:21,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a4c749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:21, skipping insertion in model container [2023-11-26 11:51:21,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:21" (3/3) ... [2023-11-26 11:51:21,547 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2023-11-26 11:51:21,556 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:51:21,568 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:51:21,569 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-26 11:51:21,569 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:51:21,726 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-11-26 11:51:21,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 93 transitions, 252 flow [2023-11-26 11:51:21,887 INFO L124 PetriNetUnfolderBase]: 4/79 cut-off events. [2023-11-26 11:51:21,888 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-26 11:51:21,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 79 events. 4/79 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 235 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 91. Up to 3 conditions per place. [2023-11-26 11:51:21,894 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 93 transitions, 252 flow [2023-11-26 11:51:21,901 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 77 transitions, 199 flow [2023-11-26 11:51:21,911 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:51:21,917 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;@5bfeecf3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:51:21,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2023-11-26 11:51:21,926 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:51:21,926 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2023-11-26 11:51:21,926 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:51:21,926 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:21,927 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:21,928 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-26 11:51:21,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:21,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1900359562, now seen corresponding path program 1 times [2023-11-26 11:51:21,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:21,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202885384] [2023-11-26 11:51:21,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:21,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:22,270 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 11:51:22,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:22,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202885384] [2023-11-26 11:51:22,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202885384] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:22,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:22,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:22,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771772276] [2023-11-26 11:51:22,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:22,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:51:22,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:22,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:51:22,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:51:22,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 97 [2023-11-26 11:51:22,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 77 transitions, 199 flow. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 11:51:22,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:22,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 97 [2023-11-26 11:51:22,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:52:06,642 INFO L124 PetriNetUnfolderBase]: 358491/455362 cut-off events. [2023-11-26 11:52:06,643 INFO L125 PetriNetUnfolderBase]: For 20905/20905 co-relation queries the response was YES. [2023-11-26 11:52:07,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 939938 conditions, 455362 events. 358491/455362 cut-off events. For 20905/20905 co-relation queries the response was YES. Maximal size of possible extension queue 15133. Compared 3215552 event pairs, 190145 based on Foata normal form. 0/308749 useless extension candidates. Maximal degree in co-relation 937030. Up to 242118 conditions per place.