./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 6b4ec56b 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_2fd302f9-a6d2-4299-aee5-d52f05d4a09b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd302f9-a6d2-4299-aee5-d52f05d4a09b/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd302f9-a6d2-4299-aee5-d52f05d4a09b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd302f9-a6d2-4299-aee5-d52f05d4a09b/bin/uautomizer-ug76WZFUDN/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_2fd302f9-a6d2-4299-aee5-d52f05d4a09b/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd302f9-a6d2-4299-aee5-d52f05d4a09b/bin/uautomizer-ug76WZFUDN --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-6b4ec56 [2022-11-20 09:30:36,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:30:36,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:30:37,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:30:37,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:30:37,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:30:37,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:30:37,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:30:37,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:30:37,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:30:37,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:30:37,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:30:37,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:30:37,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:30:37,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:30:37,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:30:37,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:30:37,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:30:37,039 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:30:37,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:30:37,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:30:37,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:30:37,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:30:37,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:30:37,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:30:37,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:30:37,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:30:37,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:30:37,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:30:37,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:30:37,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:30:37,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:30:37,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:30:37,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:30:37,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:30:37,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:30:37,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:30:37,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:30:37,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:30:37,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:30:37,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:30:37,077 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd302f9-a6d2-4299-aee5-d52f05d4a09b/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 09:30:37,114 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:30:37,114 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:30:37,115 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:30:37,115 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:30:37,115 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:30:37,116 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:30:37,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:30:37,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:30:37,117 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:30:37,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:30:37,118 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:30:37,118 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:30:37,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:30:37,119 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:30:37,119 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:30:37,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:30:37,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:30:37,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:30:37,119 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 09:30:37,120 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:30:37,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:30:37,120 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:30:37,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:30:37,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:30:37,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:30:37,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:30:37,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:30:37,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:30:37,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:30:37,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:30:37,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:30:37,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:30:37,122 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:30:37,122 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:30:37,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:30:37,123 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_2fd302f9-a6d2-4299-aee5-d52f05d4a09b/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd302f9-a6d2-4299-aee5-d52f05d4a09b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 [2022-11-20 09:30:37,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:30:37,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:30:37,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:30:37,474 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:30:37,474 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:30:37,476 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd302f9-a6d2-4299-aee5-d52f05d4a09b/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-20 09:30:40,443 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:30:40,675 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:30:40,675 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd302f9-a6d2-4299-aee5-d52f05d4a09b/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-20 09:30:40,685 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd302f9-a6d2-4299-aee5-d52f05d4a09b/bin/uautomizer-ug76WZFUDN/data/5d6bd2b86/ea30c6eeec98496b83f760d4644014c1/FLAG6b60d69b3 [2022-11-20 09:30:40,731 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd302f9-a6d2-4299-aee5-d52f05d4a09b/bin/uautomizer-ug76WZFUDN/data/5d6bd2b86/ea30c6eeec98496b83f760d4644014c1 [2022-11-20 09:30:40,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:30:40,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:30:40,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:30:40,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:30:40,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:30:40,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:30:40" (1/1) ... [2022-11-20 09:30:40,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@951b6b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:40, skipping insertion in model container [2022-11-20 09:30:40,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:30:40" (1/1) ... [2022-11-20 09:30:40,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:30:40,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:30:40,970 WARN L237 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_2fd302f9-a6d2-4299-aee5-d52f05d4a09b/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-20 09:30:40,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:30:40,989 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:30:41,028 WARN L237 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_2fd302f9-a6d2-4299-aee5-d52f05d4a09b/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-20 09:30:41,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:30:41,072 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:30:41,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:41 WrapperNode [2022-11-20 09:30:41,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:30:41,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:30:41,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:30:41,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:30:41,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:41" (1/1) ... [2022-11-20 09:30:41,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:41" (1/1) ... [2022-11-20 09:30:41,136 INFO L138 Inliner]: procedures = 29, calls = 95, calls flagged for inlining = 21, calls inlined = 27, statements flattened = 357 [2022-11-20 09:30:41,136 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:30:41,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:30:41,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:30:41,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:30:41,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:41" (1/1) ... [2022-11-20 09:30:41,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:41" (1/1) ... [2022-11-20 09:30:41,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:41" (1/1) ... [2022-11-20 09:30:41,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:41" (1/1) ... [2022-11-20 09:30:41,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:41" (1/1) ... [2022-11-20 09:30:41,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:41" (1/1) ... [2022-11-20 09:30:41,201 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:41" (1/1) ... [2022-11-20 09:30:41,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:41" (1/1) ... [2022-11-20 09:30:41,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:30:41,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:30:41,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:30:41,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:30:41,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:41" (1/1) ... [2022-11-20 09:30:41,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:30:41,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd302f9-a6d2-4299-aee5-d52f05d4a09b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:41,252 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd302f9-a6d2-4299-aee5-d52f05d4a09b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:30:41,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fd302f9-a6d2-4299-aee5-d52f05d4a09b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:30:41,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:30:41,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:30:41,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:30:41,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 09:30:41,301 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 09:30:41,302 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 09:30:41,302 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 09:30:41,302 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 09:30:41,302 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 09:30:41,302 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 09:30:41,302 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-20 09:30:41,302 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-20 09:30:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:30:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-20 09:30:41,303 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-20 09:30:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-20 09:30:41,303 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-20 09:30:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 09:30:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 09:30:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:30:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:30:41,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:30:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:30:41,306 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 09:30:41,439 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:30:41,440 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:30:42,098 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:30:42,699 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:30:42,700 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-20 09:30:42,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:30:42 BoogieIcfgContainer [2022-11-20 09:30:42,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:30:42,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:30:42,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:30:42,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:30:42,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:30:40" (1/3) ... [2022-11-20 09:30:42,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5155b68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:30:42, skipping insertion in model container [2022-11-20 09:30:42,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:41" (2/3) ... [2022-11-20 09:30:42,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5155b68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:30:42, skipping insertion in model container [2022-11-20 09:30:42,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:30:42" (3/3) ... [2022-11-20 09:30:42,717 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2022-11-20 09:30:42,728 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 09:30:42,738 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:30:42,739 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-11-20 09:30:42,739 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 09:30:43,012 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-20 09:30:43,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 300 places, 299 transitions, 670 flow [2022-11-20 09:30:43,233 INFO L130 PetriNetUnfolder]: 18/271 cut-off events. [2022-11-20 09:30:43,233 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-20 09:30:43,244 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. [2022-11-20 09:30:43,244 INFO L82 GeneralOperation]: Start removeDead. Operand has 300 places, 299 transitions, 670 flow [2022-11-20 09:30:43,254 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 252 transitions, 549 flow [2022-11-20 09:30:43,270 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:30:43,282 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;@2065376b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:30:43,283 INFO L358 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2022-11-20 09:30:43,302 INFO L130 PetriNetUnfolder]: 1/59 cut-off events. [2022-11-20 09:30:43,303 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:30:43,303 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:43,304 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] [2022-11-20 09:30:43,304 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 75 more)] === [2022-11-20 09:30:43,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:43,310 INFO L85 PathProgramCache]: Analyzing trace with hash 149972340, now seen corresponding path program 1 times [2022-11-20 09:30:43,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:43,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199986384] [2022-11-20 09:30:43,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:43,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:43,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:43,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:43,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199986384] [2022-11-20 09:30:43,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199986384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:43,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:43,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:30:43,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439982375] [2022-11-20 09:30:43,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:44,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:30:44,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:44,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:30:44,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:30:44,058 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 303 [2022-11-20 09:30:44,064 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) [2022-11-20 09:30:44,064 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:44,064 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 303 [2022-11-20 09:30:44,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:54,009 INFO L130 PetriNetUnfolder]: 22009/30832 cut-off events. [2022-11-20 09:30:54,009 INFO L131 PetriNetUnfolder]: For 6381/6381 co-relation queries the response was YES. [2022-11-20 09:30:54,162 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 212977 event pairs, 17472 based on Foata normal form. 3028/16446 useless extension candidates. Maximal degree in co-relation 65414. Up to 29079 conditions per place. [2022-11-20 09:30:54,609 INFO L137 encePairwiseOnDemand]: 277/303 looper letters, 62 selfloop transitions, 5 changer transitions 3/231 dead transitions. [2022-11-20 09:30:54,610 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 231 transitions, 647 flow [2022-11-20 09:30:54,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:30:54,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 09:30:54,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1071 transitions. [2022-11-20 09:30:54,633 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7069306930693069 [2022-11-20 09:30:54,633 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1071 transitions. [2022-11-20 09:30:54,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1071 transitions. [2022-11-20 09:30:54,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:54,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1071 transitions. [2022-11-20 09:30:54,649 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) [2022-11-20 09:30:54,659 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) [2022-11-20 09:30:54,660 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) [2022-11-20 09:30:54,662 INFO L175 Difference]: Start difference. First operand has 254 places, 252 transitions, 549 flow. Second operand 5 states and 1071 transitions. [2022-11-20 09:30:54,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 231 transitions, 647 flow [2022-11-20 09:30:54,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 231 transitions, 618 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-11-20 09:30:54,828 INFO L231 Difference]: Finished difference. Result has 234 places, 228 transitions, 482 flow [2022-11-20 09:30:54,830 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} [2022-11-20 09:30:54,836 INFO L288 CegarLoopForPetriNet]: 254 programPoint places, -20 predicate places. [2022-11-20 09:30:54,837 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 228 transitions, 482 flow [2022-11-20 09:30:54,838 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) [2022-11-20 09:30:54,838 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:54,838 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] [2022-11-20 09:30:54,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:30:54,839 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 75 more)] === [2022-11-20 09:30:54,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:54,840 INFO L85 PathProgramCache]: Analyzing trace with hash 354176334, now seen corresponding path program 1 times [2022-11-20 09:30:54,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:54,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79512308] [2022-11-20 09:30:54,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:54,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:54,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:54,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:54,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79512308] [2022-11-20 09:30:54,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79512308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:54,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:54,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:54,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581975168] [2022-11-20 09:30:54,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:54,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:30:54,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:54,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:30:54,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:30:54,953 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 303 [2022-11-20 09:30:54,955 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) [2022-11-20 09:30:54,955 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:54,955 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 303 [2022-11-20 09:30:54,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:02,360 INFO L130 PetriNetUnfolder]: 22009/30828 cut-off events. [2022-11-20 09:31:02,361 INFO L131 PetriNetUnfolder]: For 1597/1597 co-relation queries the response was YES. [2022-11-20 09:31:02,492 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 213183 event pairs, 17472 based on Foata normal form. 0/13418 useless extension candidates. Maximal degree in co-relation 61517. Up to 29070 conditions per place. [2022-11-20 09:31:02,694 INFO L137 encePairwiseOnDemand]: 299/303 looper letters, 55 selfloop transitions, 3 changer transitions 0/227 dead transitions. [2022-11-20 09:31:02,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 227 transitions, 596 flow [2022-11-20 09:31:02,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:31:02,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 09:31:02,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 907 transitions. [2022-11-20 09:31:02,697 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7483498349834984 [2022-11-20 09:31:02,697 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 907 transitions. [2022-11-20 09:31:02,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 907 transitions. [2022-11-20 09:31:02,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:02,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 907 transitions. [2022-11-20 09:31:02,701 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) [2022-11-20 09:31:02,703 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) [2022-11-20 09:31:02,704 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) [2022-11-20 09:31:02,704 INFO L175 Difference]: Start difference. First operand has 234 places, 228 transitions, 482 flow. Second operand 4 states and 907 transitions. [2022-11-20 09:31:02,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 227 transitions, 596 flow [2022-11-20 09:31:02,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 227 transitions, 586 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 09:31:02,717 INFO L231 Difference]: Finished difference. Result has 229 places, 227 transitions, 476 flow [2022-11-20 09:31:02,718 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} [2022-11-20 09:31:02,719 INFO L288 CegarLoopForPetriNet]: 254 programPoint places, -25 predicate places. [2022-11-20 09:31:02,719 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 227 transitions, 476 flow [2022-11-20 09:31:02,720 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) [2022-11-20 09:31:02,720 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:02,720 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] [2022-11-20 09:31:02,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:31:02,721 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 75 more)] === [2022-11-20 09:31:02,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:02,721 INFO L85 PathProgramCache]: Analyzing trace with hash -486710488, now seen corresponding path program 1 times [2022-11-20 09:31:02,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:02,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497986686] [2022-11-20 09:31:02,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:02,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:02,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:02,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:02,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497986686] [2022-11-20 09:31:02,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497986686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:02,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:02,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:31:02,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090783032] [2022-11-20 09:31:02,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:02,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:31:02,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:02,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:31:02,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:31:02,882 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 303 [2022-11-20 09:31:02,884 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) [2022-11-20 09:31:02,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:02,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 303 [2022-11-20 09:31:02,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand