./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_807d85d5-5d3d-49de-b4b2-dd0f60244b7e/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_807d85d5-5d3d-49de-b4b2-dd0f60244b7e/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_807d85d5-5d3d-49de-b4b2-dd0f60244b7e/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_807d85d5-5d3d-49de-b4b2-dd0f60244b7e/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_807d85d5-5d3d-49de-b4b2-dd0f60244b7e/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_807d85d5-5d3d-49de-b4b2-dd0f60244b7e/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 b1e99af7c76570461a4b0ac70d664412f250ec04f47fd9ca8c0f85236f1348c6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:44:33,365 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:44:33,437 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_807d85d5-5d3d-49de-b4b2-dd0f60244b7e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 11:44:33,443 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:44:33,444 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:44:33,471 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:44:33,471 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:44:33,472 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:44:33,473 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:44:33,474 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:44:33,474 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:44:33,475 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:44:33,476 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:44:33,476 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:44:33,477 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:44:33,477 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:44:33,478 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:44:33,478 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:44:33,479 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:44:33,479 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:44:33,480 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:44:33,486 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:44:33,487 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:44:33,487 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:44:33,487 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:44:33,488 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:44:33,488 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:44:33,489 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:44:33,489 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:44:33,490 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:44:33,491 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:44:33,491 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:44:33,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:44:33,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:44:33,492 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:44:33,493 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:44:33,493 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:44:33,493 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:44:33,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:44:33,494 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:44:33,494 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:44:33,494 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:44:33,494 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:44:33,495 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:44:33,496 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_807d85d5-5d3d-49de-b4b2-dd0f60244b7e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_807d85d5-5d3d-49de-b4b2-dd0f60244b7e/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1e99af7c76570461a4b0ac70d664412f250ec04f47fd9ca8c0f85236f1348c6 [2023-11-26 11:44:33,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:44:33,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:44:33,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:44:33,848 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:44:33,849 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:44:33,850 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_807d85d5-5d3d-49de-b4b2-dd0f60244b7e/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2023-11-26 11:44:37,111 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:44:37,348 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:44:37,348 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_807d85d5-5d3d-49de-b4b2-dd0f60244b7e/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2023-11-26 11:44:37,358 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_807d85d5-5d3d-49de-b4b2-dd0f60244b7e/bin/uautomizer-verify-VRDe98Ueme/data/cdf4930ee/96c2be6923754b1697076357f584ef75/FLAGcc8986d26 [2023-11-26 11:44:37,373 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_807d85d5-5d3d-49de-b4b2-dd0f60244b7e/bin/uautomizer-verify-VRDe98Ueme/data/cdf4930ee/96c2be6923754b1697076357f584ef75 [2023-11-26 11:44:37,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:44:37,378 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:44:37,379 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:44:37,379 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:44:37,385 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:44:37,386 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:44:37" (1/1) ... [2023-11-26 11:44:37,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c365a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:37, skipping insertion in model container [2023-11-26 11:44:37,388 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:44:37" (1/1) ... [2023-11-26 11:44:37,417 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:44:37,728 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:44:37,743 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:44:37,806 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:44:37,824 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:44:37,825 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:44:37,834 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:44:37,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:37 WrapperNode [2023-11-26 11:44:37,835 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:44:37,837 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:44:37,838 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:44:37,838 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:44:37,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:37" (1/1) ... [2023-11-26 11:44:37,873 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:37" (1/1) ... [2023-11-26 11:44:37,934 INFO L138 Inliner]: procedures = 27, calls = 69, calls flagged for inlining = 19, calls inlined = 25, statements flattened = 385 [2023-11-26 11:44:37,938 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:44:37,939 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:44:37,940 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:44:37,940 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:44:37,952 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:37" (1/1) ... [2023-11-26 11:44:37,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:37" (1/1) ... [2023-11-26 11:44:37,974 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:37" (1/1) ... [2023-11-26 11:44:38,008 INFO L175 MemorySlicer]: Split 15 memory accesses to 6 slices as follows [2, 2, 2, 5, 2, 2]. 33 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 11:44:38,016 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:37" (1/1) ... [2023-11-26 11:44:38,017 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:37" (1/1) ... [2023-11-26 11:44:38,030 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:37" (1/1) ... [2023-11-26 11:44:38,060 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:37" (1/1) ... [2023-11-26 11:44:38,063 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:37" (1/1) ... [2023-11-26 11:44:38,066 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:37" (1/1) ... [2023-11-26 11:44:38,070 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:44:38,078 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:44:38,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:44:38,078 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:44:38,079 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:37" (1/1) ... [2023-11-26 11:44:38,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:44:38,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_807d85d5-5d3d-49de-b4b2-dd0f60244b7e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:38,117 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_807d85d5-5d3d-49de-b4b2-dd0f60244b7e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:44:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:44:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:44:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:44:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:44:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:44:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:44:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 11:44:38,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_807d85d5-5d3d-49de-b4b2-dd0f60244b7e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:44:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 11:44:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:44:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:44:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 11:44:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 11:44:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 11:44:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 11:44:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 11:44:38,178 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 11:44:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 11:44:38,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 11:44:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-26 11:44:38,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-26 11:44:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-26 11:44:38,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-26 11:44:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:44:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:44:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:44:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:44:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 11:44:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 11:44:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 11:44:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 11:44:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:44:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:44:38,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:44:38,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:44:38,187 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 11:44:38,339 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:44:38,342 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:44:39,065 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:44:39,840 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:44:39,840 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-26 11:44:39,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:44:39 BoogieIcfgContainer [2023-11-26 11:44:39,841 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:44:39,844 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:44:39,844 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:44:39,848 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:44:39,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:44:37" (1/3) ... [2023-11-26 11:44:39,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe33bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:44:39, skipping insertion in model container [2023-11-26 11:44:39,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:37" (2/3) ... [2023-11-26 11:44:39,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe33bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:44:39, skipping insertion in model container [2023-11-26 11:44:39,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:44:39" (3/3) ... [2023-11-26 11:44:39,852 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1.wvr.c [2023-11-26 11:44:39,861 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:44:39,871 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:44:39,872 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-11-26 11:44:39,872 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:44:40,038 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-26 11:44:40,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 95 transitions, 218 flow [2023-11-26 11:44:40,140 INFO L124 PetriNetUnfolderBase]: 9/91 cut-off events. [2023-11-26 11:44:40,140 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 11:44:40,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 91 events. 9/91 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 283 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2023-11-26 11:44:40,146 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 95 transitions, 218 flow [2023-11-26 11:44:40,158 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 89 transitions, 199 flow [2023-11-26 11:44:40,176 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:44:40,184 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;@7babdf4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:44:40,184 INFO L358 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2023-11-26 11:44:40,189 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:44:40,189 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-26 11:44:40,189 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:44:40,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:40,190 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-26 11:44:40,191 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-26 11:44:40,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:40,198 INFO L85 PathProgramCache]: Analyzing trace with hash 38746, now seen corresponding path program 1 times [2023-11-26 11:44:40,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:40,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132227485] [2023-11-26 11:44:40,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:40,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:40,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:40,483 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 11:44:40,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:40,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132227485] [2023-11-26 11:44:40,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132227485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:40,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:40,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:44:40,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778872763] [2023-11-26 11:44:40,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:40,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:40,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:40,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:40,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:40,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 95 [2023-11-26 11:44:40,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 89 transitions, 199 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 11:44:40,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:40,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 95 [2023-11-26 11:44:40,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:45:09,543 INFO L124 PetriNetUnfolderBase]: 180934/234780 cut-off events. [2023-11-26 11:45:09,543 INFO L125 PetriNetUnfolderBase]: For 6888/6888 co-relation queries the response was YES. [2023-11-26 11:45:09,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 470110 conditions, 234780 events. 180934/234780 cut-off events. For 6888/6888 co-relation queries the response was YES. Maximal size of possible extension queue 14203. Compared 1578518 event pairs, 149948 based on Foata normal form. 30639/139850 useless extension candidates. Maximal degree in co-relation 436900. Up to 229670 conditions per place. [2023-11-26 11:45:11,398 INFO L140 encePairwiseOnDemand]: 81/95 looper letters, 63 selfloop transitions, 1 changer transitions 0/76 dead transitions. [2023-11-26 11:45:11,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 76 transitions, 301 flow [2023-11-26 11:45:11,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:11,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:45:11,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2023-11-26 11:45:11,411 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43859649122807015 [2023-11-26 11:45:11,412 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 125 transitions. [2023-11-26 11:45:11,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 125 transitions. [2023-11-26 11:45:11,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:45:11,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 125 transitions. [2023-11-26 11:45:11,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 11:45:11,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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 11:45:11,424 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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 11:45:11,426 INFO L175 Difference]: Start difference. First operand has 93 places, 89 transitions, 199 flow. Second operand 3 states and 125 transitions. [2023-11-26 11:45:11,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 76 transitions, 301 flow [2023-11-26 11:45:11,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 76 transitions, 288 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-11-26 11:45:11,615 INFO L231 Difference]: Finished difference. Result has 79 places, 76 transitions, 162 flow [2023-11-26 11:45:11,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=79, PETRI_TRANSITIONS=76} [2023-11-26 11:45:11,621 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -14 predicate places. [2023-11-26 11:45:11,622 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 76 transitions, 162 flow [2023-11-26 11:45:11,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 11:45:11,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:11,623 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-26 11:45:11,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:45:11,623 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-26 11:45:11,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:11,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1202341, now seen corresponding path program 1 times [2023-11-26 11:45:11,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:11,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56047556] [2023-11-26 11:45:11,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:11,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:11,691 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 11:45:11,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:11,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56047556] [2023-11-26 11:45:11,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56047556] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:11,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:11,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:45:11,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055187439] [2023-11-26 11:45:11,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:11,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:11,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:11,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:11,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:11,700 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 95 [2023-11-26 11:45:11,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 76 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 11:45:11,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:45:11,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 95 [2023-11-26 11:45:11,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand