./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_d2d14d5f-f25c-4897-bdb5-3f042b9160f6/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d14d5f-f25c-4897-bdb5-3f042b9160f6/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d14d5f-f25c-4897-bdb5-3f042b9160f6/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d14d5f-f25c-4897-bdb5-3f042b9160f6/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d14d5f-f25c-4897-bdb5-3f042b9160f6/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d14d5f-f25c-4897-bdb5-3f042b9160f6/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --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 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:33:29,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:33:29,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:33:29,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:33:29,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:33:29,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:33:29,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:33:29,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:33:29,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:33:29,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:33:29,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:33:29,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:33:29,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:33:29,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:33:29,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:33:29,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:33:29,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:33:29,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:33:29,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:33:29,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:33:29,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:33:29,734 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:33:29,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:33:29,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:33:29,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:33:29,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:33:29,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:33:29,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:33:29,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:33:29,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:33:29,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:33:29,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:33:29,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:33:29,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:33:29,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:33:29,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:33:29,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:33:29,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:33:29,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:33:29,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:33:29,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:33:29,760 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d14d5f-f25c-4897-bdb5-3f042b9160f6/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 12:33:29,798 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:33:29,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:33:29,799 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:33:29,799 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:33:29,800 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:33:29,801 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:33:29,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:33:29,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:33:29,802 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:33:29,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:33:29,803 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:33:29,804 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:33:29,804 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:33:29,804 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:33:29,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:33:29,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:33:29,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:33:29,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:33:29,805 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 12:33:29,805 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:33:29,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:33:29,806 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:33:29,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:33:29,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:33:29,806 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:33:29,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:33:29,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:33:29,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:33:29,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:33:29,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:33:29,808 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:33:29,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:33:29,808 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:33:29,809 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:33:29,809 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:33:29,809 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_d2d14d5f-f25c-4897-bdb5-3f042b9160f6/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d14d5f-f25c-4897-bdb5-3f042b9160f6/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 [2022-11-16 12:33:30,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:33:30,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:33:30,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:33:30,173 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:33:30,174 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:33:30,175 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d14d5f-f25c-4897-bdb5-3f042b9160f6/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-16 12:33:30,244 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d14d5f-f25c-4897-bdb5-3f042b9160f6/bin/uautomizer-tPACEb0tL8/data/e183ae99d/35c0ce8464724635a3e17d48e0baa4dd/FLAG7d70bd5c5 [2022-11-16 12:33:30,702 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:33:30,702 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d14d5f-f25c-4897-bdb5-3f042b9160f6/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-16 12:33:30,709 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d14d5f-f25c-4897-bdb5-3f042b9160f6/bin/uautomizer-tPACEb0tL8/data/e183ae99d/35c0ce8464724635a3e17d48e0baa4dd/FLAG7d70bd5c5 [2022-11-16 12:33:31,081 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d14d5f-f25c-4897-bdb5-3f042b9160f6/bin/uautomizer-tPACEb0tL8/data/e183ae99d/35c0ce8464724635a3e17d48e0baa4dd [2022-11-16 12:33:31,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:33:31,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:33:31,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:33:31,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:33:31,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:33:31,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:33:31" (1/1) ... [2022-11-16 12:33:31,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dca8b6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:31, skipping insertion in model container [2022-11-16 12:33:31,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:33:31" (1/1) ... [2022-11-16 12:33:31,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:33:31,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:33:31,482 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d14d5f-f25c-4897-bdb5-3f042b9160f6/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-16 12:33:31,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:33:31,501 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:33:31,530 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d14d5f-f25c-4897-bdb5-3f042b9160f6/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-16 12:33:31,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:33:31,563 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:33:31,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:31 WrapperNode [2022-11-16 12:33:31,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:33:31,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:33:31,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:33:31,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:33:31,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:31" (1/1) ... [2022-11-16 12:33:31,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:31" (1/1) ... [2022-11-16 12:33:31,643 INFO L138 Inliner]: procedures = 29, calls = 95, calls flagged for inlining = 21, calls inlined = 27, statements flattened = 357 [2022-11-16 12:33:31,643 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:33:31,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:33:31,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:33:31,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:33:31,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:31" (1/1) ... [2022-11-16 12:33:31,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:31" (1/1) ... [2022-11-16 12:33:31,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:31" (1/1) ... [2022-11-16 12:33:31,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:31" (1/1) ... [2022-11-16 12:33:31,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:31" (1/1) ... [2022-11-16 12:33:31,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:31" (1/1) ... [2022-11-16 12:33:31,703 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:31" (1/1) ... [2022-11-16 12:33:31,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:31" (1/1) ... [2022-11-16 12:33:31,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:33:31,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:33:31,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:33:31,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:33:31,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:31" (1/1) ... [2022-11-16 12:33:31,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:33:31,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d14d5f-f25c-4897-bdb5-3f042b9160f6/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:33:31,740 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d14d5f-f25c-4897-bdb5-3f042b9160f6/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:33:31,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2d14d5f-f25c-4897-bdb5-3f042b9160f6/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:33:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:33:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:33:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:33:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:33:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 12:33:31,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 12:33:31,793 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 12:33:31,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 12:33:31,794 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 12:33:31,794 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 12:33:31,794 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-16 12:33:31,794 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-16 12:33:31,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:33:31,794 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-16 12:33:31,794 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-16 12:33:31,795 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-16 12:33:31,795 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-16 12:33:31,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:33:31,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:33:31,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:33:31,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:33:31,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:33:31,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:33:31,797 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:33:32,015 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:33:32,018 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:33:32,736 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:33:33,360 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:33:33,360 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-16 12:33:33,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:33:33 BoogieIcfgContainer [2022-11-16 12:33:33,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:33:33,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:33:33,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:33:33,374 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:33:33,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:33:31" (1/3) ... [2022-11-16 12:33:33,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef520a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:33:33, skipping insertion in model container [2022-11-16 12:33:33,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:31" (2/3) ... [2022-11-16 12:33:33,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef520a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:33:33, skipping insertion in model container [2022-11-16 12:33:33,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:33:33" (3/3) ... [2022-11-16 12:33:33,377 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2022-11-16 12:33:33,386 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:33:33,396 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:33:33,396 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-11-16 12:33:33,396 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:33:33,670 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-16 12:33:33,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 300 places, 299 transitions, 670 flow [2022-11-16 12:33:33,875 INFO L130 PetriNetUnfolder]: 18/271 cut-off events. [2022-11-16 12:33:33,876 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 12:33:33,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 271 events. 18/271 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 487 event pairs, 0 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 232. Up to 3 conditions per place. [2022-11-16 12:33:33,883 INFO L82 GeneralOperation]: Start removeDead. Operand has 300 places, 299 transitions, 670 flow [2022-11-16 12:33:33,890 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 252 transitions, 549 flow [2022-11-16 12:33:33,899 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:33:33,906 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=LoopsAndPotentialCycles, 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;@30597dd2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:33:33,906 INFO L358 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2022-11-16 12:33:33,924 INFO L130 PetriNetUnfolder]: 1/59 cut-off events. [2022-11-16 12:33:33,925 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:33:33,926 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:33,926 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:33,927 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 75 more)] === [2022-11-16 12:33:33,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:33,934 INFO L85 PathProgramCache]: Analyzing trace with hash -265269324, now seen corresponding path program 1 times [2022-11-16 12:33:33,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:33,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030584895] [2022-11-16 12:33:33,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:33,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:34,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:34,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:34,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030584895] [2022-11-16 12:33:34,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030584895] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:34,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:34,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:33:34,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683084108] [2022-11-16 12:33:34,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:34,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:33:34,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:34,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:33:34,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:33:34,573 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 303 [2022-11-16 12:33:34,580 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 252 transitions, 549 flow. Second operand has 5 states, 5 states have (on average 197.4) internal successors, (987), 5 states have internal predecessors, (987), 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) [2022-11-16 12:33:34,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:34,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 303 [2022-11-16 12:33:34,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:44,589 INFO L130 PetriNetUnfolder]: 22009/30832 cut-off events. [2022-11-16 12:33:44,590 INFO L131 PetriNetUnfolder]: For 6381/6381 co-relation queries the response was YES. [2022-11-16 12:33:44,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66223 conditions, 30832 events. 22009/30832 cut-off events. For 6381/6381 co-relation queries the response was YES. Maximal size of possible extension queue 2474. Compared 211372 event pairs, 17472 based on Foata normal form. 3028/16302 useless extension candidates. Maximal degree in co-relation 65414. Up to 29079 conditions per place. [2022-11-16 12:33:44,978 INFO L137 encePairwiseOnDemand]: 277/303 looper letters, 62 selfloop transitions, 5 changer transitions 3/231 dead transitions. [2022-11-16 12:33:44,978 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 231 transitions, 647 flow [2022-11-16 12:33:44,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:33:44,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:33:44,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1071 transitions. [2022-11-16 12:33:45,000 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7069306930693069 [2022-11-16 12:33:45,001 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1071 transitions. [2022-11-16 12:33:45,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1071 transitions. [2022-11-16 12:33:45,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:45,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1071 transitions. [2022-11-16 12:33:45,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 214.2) internal successors, (1071), 5 states have internal predecessors, (1071), 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) [2022-11-16 12:33:45,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 303.0) internal successors, (1818), 6 states have internal predecessors, (1818), 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) [2022-11-16 12:33:45,023 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 303.0) internal successors, (1818), 6 states have internal predecessors, (1818), 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) [2022-11-16 12:33:45,025 INFO L175 Difference]: Start difference. First operand has 254 places, 252 transitions, 549 flow. Second operand 5 states and 1071 transitions. [2022-11-16 12:33:45,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 231 transitions, 647 flow [2022-11-16 12:33:45,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 231 transitions, 618 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-11-16 12:33:45,180 INFO L231 Difference]: Finished difference. Result has 234 places, 228 transitions, 482 flow [2022-11-16 12:33:45,183 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=482, PETRI_PLACES=234, PETRI_TRANSITIONS=228} [2022-11-16 12:33:45,186 INFO L288 CegarLoopForPetriNet]: 254 programPoint places, -20 predicate places. [2022-11-16 12:33:45,186 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 228 transitions, 482 flow [2022-11-16 12:33:45,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 197.4) internal successors, (987), 5 states have internal predecessors, (987), 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) [2022-11-16 12:33:45,187 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:45,188 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:45,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:33:45,188 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 75 more)] === [2022-11-16 12:33:45,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:45,189 INFO L85 PathProgramCache]: Analyzing trace with hash 366586638, now seen corresponding path program 1 times [2022-11-16 12:33:45,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:45,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923726883] [2022-11-16 12:33:45,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:45,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:45,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:45,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:45,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923726883] [2022-11-16 12:33:45,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923726883] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:45,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:45,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:33:45,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216759165] [2022-11-16 12:33:45,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:45,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:33:45,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:45,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:33:45,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:33:45,323 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 303 [2022-11-16 12:33:45,324 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 228 transitions, 482 flow. Second operand has 4 states, 4 states have (on average 214.0) internal successors, (856), 4 states have internal predecessors, (856), 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) [2022-11-16 12:33:45,324 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:45,324 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 303 [2022-11-16 12:33:45,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:52,475 INFO L130 PetriNetUnfolder]: 22009/30828 cut-off events. [2022-11-16 12:33:52,475 INFO L131 PetriNetUnfolder]: For 1597/1597 co-relation queries the response was YES. [2022-11-16 12:33:52,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61587 conditions, 30828 events. 22009/30828 cut-off events. For 1597/1597 co-relation queries the response was YES. Maximal size of possible extension queue 2474. Compared 211355 event pairs, 17472 based on Foata normal form. 0/13274 useless extension candidates. Maximal degree in co-relation 61517. Up to 29070 conditions per place. [2022-11-16 12:33:52,801 INFO L137 encePairwiseOnDemand]: 299/303 looper letters, 55 selfloop transitions, 3 changer transitions 0/227 dead transitions. [2022-11-16 12:33:52,802 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 227 transitions, 596 flow [2022-11-16 12:33:52,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:33:52,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 12:33:52,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 907 transitions. [2022-11-16 12:33:52,805 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7483498349834984 [2022-11-16 12:33:52,805 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 907 transitions. [2022-11-16 12:33:52,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 907 transitions. [2022-11-16 12:33:52,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:52,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 907 transitions. [2022-11-16 12:33:52,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 226.75) internal successors, (907), 4 states have internal predecessors, (907), 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) [2022-11-16 12:33:52,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 303.0) internal successors, (1515), 5 states have internal predecessors, (1515), 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) [2022-11-16 12:33:52,812 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 303.0) internal successors, (1515), 5 states have internal predecessors, (1515), 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) [2022-11-16 12:33:52,812 INFO L175 Difference]: Start difference. First operand has 234 places, 228 transitions, 482 flow. Second operand 4 states and 907 transitions. [2022-11-16 12:33:52,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 227 transitions, 596 flow [2022-11-16 12:33:52,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 227 transitions, 586 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:33:52,822 INFO L231 Difference]: Finished difference. Result has 229 places, 227 transitions, 476 flow [2022-11-16 12:33:52,823 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=476, PETRI_PLACES=229, PETRI_TRANSITIONS=227} [2022-11-16 12:33:52,824 INFO L288 CegarLoopForPetriNet]: 254 programPoint places, -25 predicate places. [2022-11-16 12:33:52,824 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 227 transitions, 476 flow [2022-11-16 12:33:52,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 214.0) internal successors, (856), 4 states have internal predecessors, (856), 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) [2022-11-16 12:33:52,825 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:52,825 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:52,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:33:52,825 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 75 more)] === [2022-11-16 12:33:52,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:52,828 INFO L85 PathProgramCache]: Analyzing trace with hash -940049690, now seen corresponding path program 1 times [2022-11-16 12:33:52,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:52,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534125748] [2022-11-16 12:33:52,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:52,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:52,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:52,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:52,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534125748] [2022-11-16 12:33:52,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534125748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:52,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:52,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:33:52,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133361483] [2022-11-16 12:33:52,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:52,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:33:52,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:52,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:33:52,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:33:52,995 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 303 [2022-11-16 12:33:52,996 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 227 transitions, 476 flow. Second operand has 4 states, 4 states have (on average 212.5) internal successors, (850), 4 states have internal predecessors, (850), 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) [2022-11-16 12:33:52,997 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:52,997 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 303 [2022-11-16 12:33:52,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:34:05,980 INFO L130 PetriNetUnfolder]: 44017/61574 cut-off events. [2022-11-16 12:34:05,981 INFO L131 PetriNetUnfolder]: For 3190/3190 co-relation queries the response was YES. [2022-11-16 12:34:06,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123084 conditions, 61574 events. 44017/61574 cut-off events. For 3190/3190 co-relation queries the response was YES. Maximal size of possible extension queue 3387. Compared 450116 event pairs, 34944 based on Foata normal form. 0/26612 useless extension candidates. Maximal degree in co-relation 123051. Up to 29076 conditions per place.