./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee62c14a-263c-4bad-9d0b-9e1b039abbb6/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee62c14a-263c-4bad-9d0b-9e1b039abbb6/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee62c14a-263c-4bad-9d0b-9e1b039abbb6/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee62c14a-263c-4bad-9d0b-9e1b039abbb6/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee62c14a-263c-4bad-9d0b-9e1b039abbb6/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee62c14a-263c-4bad-9d0b-9e1b039abbb6/bin/uautomizer-uyxdKDjOR8 --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 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f --- 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-2329fc7 [2022-12-13 22:18:47,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:18:47,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:18:47,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:18:47,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:18:47,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:18:47,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:18:47,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:18:47,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:18:47,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:18:47,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:18:47,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:18:47,047 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:18:47,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:18:47,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:18:47,049 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:18:47,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:18:47,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:18:47,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:18:47,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:18:47,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:18:47,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:18:47,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:18:47,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:18:47,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:18:47,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:18:47,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:18:47,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:18:47,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:18:47,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:18:47,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:18:47,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:18:47,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:18:47,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:18:47,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:18:47,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:18:47,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:18:47,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:18:47,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:18:47,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:18:47,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:18:47,066 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee62c14a-263c-4bad-9d0b-9e1b039abbb6/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 22:18:47,080 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:18:47,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:18:47,080 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:18:47,081 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:18:47,081 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:18:47,081 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:18:47,082 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:18:47,082 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:18:47,082 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:18:47,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:18:47,082 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:18:47,083 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 22:18:47,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:18:47,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:18:47,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:18:47,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 22:18:47,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:18:47,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 22:18:47,084 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 22:18:47,084 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:18:47,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:18:47,084 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:18:47,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 22:18:47,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:18:47,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:18:47,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:18:47,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:18:47,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:18:47,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:18:47,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 22:18:47,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:18:47,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 22:18:47,086 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:18:47,086 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 22:18:47,086 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:18:47,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:18:47,087 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:18:47,087 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee62c14a-263c-4bad-9d0b-9e1b039abbb6/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee62c14a-263c-4bad-9d0b-9e1b039abbb6/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f [2022-12-13 22:18:47,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:18:47,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:18:47,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:18:47,271 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:18:47,272 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:18:47,273 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee62c14a-263c-4bad-9d0b-9e1b039abbb6/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2022-12-13 22:18:49,800 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:18:50,007 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:18:50,007 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee62c14a-263c-4bad-9d0b-9e1b039abbb6/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2022-12-13 22:18:50,015 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee62c14a-263c-4bad-9d0b-9e1b039abbb6/bin/uautomizer-uyxdKDjOR8/data/9cdbec564/59d74417f4d14459842fad83506dea76/FLAGf51c095a6 [2022-12-13 22:18:50,367 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee62c14a-263c-4bad-9d0b-9e1b039abbb6/bin/uautomizer-uyxdKDjOR8/data/9cdbec564/59d74417f4d14459842fad83506dea76 [2022-12-13 22:18:50,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:18:50,369 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:18:50,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:18:50,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:18:50,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:18:50,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:18:50" (1/1) ... [2022-12-13 22:18:50,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7587940a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:18:50, skipping insertion in model container [2022-12-13 22:18:50,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:18:50" (1/1) ... [2022-12-13 22:18:50,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:18:50,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:18:50,596 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_ee62c14a-263c-4bad-9d0b-9e1b039abbb6/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i[30176,30189] [2022-12-13 22:18:50,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:18:50,623 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:18:50,645 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_ee62c14a-263c-4bad-9d0b-9e1b039abbb6/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i[30176,30189] [2022-12-13 22:18:50,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:18:50,676 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:18:50,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:18:50 WrapperNode [2022-12-13 22:18:50,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:18:50,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:18:50,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:18:50,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:18:50,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:18:50" (1/1) ... [2022-12-13 22:18:50,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:18:50" (1/1) ... [2022-12-13 22:18:50,709 INFO L138 Inliner]: procedures = 172, calls = 50, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 232 [2022-12-13 22:18:50,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:18:50,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:18:50,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:18:50,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:18:50,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:18:50" (1/1) ... [2022-12-13 22:18:50,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:18:50" (1/1) ... [2022-12-13 22:18:50,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:18:50" (1/1) ... [2022-12-13 22:18:50,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:18:50" (1/1) ... [2022-12-13 22:18:50,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:18:50" (1/1) ... [2022-12-13 22:18:50,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:18:50" (1/1) ... [2022-12-13 22:18:50,729 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:18:50" (1/1) ... [2022-12-13 22:18:50,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:18:50" (1/1) ... [2022-12-13 22:18:50,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:18:50,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:18:50,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:18:50,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:18:50,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:18:50" (1/1) ... [2022-12-13 22:18:50,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:18:50,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee62c14a-263c-4bad-9d0b-9e1b039abbb6/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:18:50,756 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee62c14a-263c-4bad-9d0b-9e1b039abbb6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:18:50,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee62c14a-263c-4bad-9d0b-9e1b039abbb6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:18:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 22:18:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-12-13 22:18:50,783 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-12-13 22:18:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 22:18:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 22:18:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:18:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 22:18:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-12-13 22:18:50,783 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-12-13 22:18:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 22:18:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 22:18:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:18:50,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:18:50,785 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 22:18:50,889 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:18:50,891 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:18:51,179 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:18:51,189 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:18:51,189 INFO L300 CfgBuilder]: Removed 24 assume(true) statements. [2022-12-13 22:18:51,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:18:51 BoogieIcfgContainer [2022-12-13 22:18:51,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:18:51,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:18:51,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:18:51,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:18:51,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:18:50" (1/3) ... [2022-12-13 22:18:51,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a5f9b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:18:51, skipping insertion in model container [2022-12-13 22:18:51,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:18:50" (2/3) ... [2022-12-13 22:18:51,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a5f9b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:18:51, skipping insertion in model container [2022-12-13 22:18:51,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:18:51" (3/3) ... [2022-12-13 22:18:51,206 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_09-ptrmunge_racing.i [2022-12-13 22:18:51,212 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 22:18:51,220 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:18:51,220 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-12-13 22:18:51,220 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 22:18:51,295 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-13 22:18:51,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 255 transitions, 532 flow [2022-12-13 22:18:51,423 INFO L130 PetriNetUnfolder]: 58/453 cut-off events. [2022-12-13 22:18:51,423 INFO L131 PetriNetUnfolder]: For 8/12 co-relation queries the response was YES. [2022-12-13 22:18:51,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 453 events. 58/453 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2019 event pairs, 0 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 241. Up to 8 conditions per place. [2022-12-13 22:18:51,431 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 255 transitions, 532 flow [2022-12-13 22:18:51,437 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 255 transitions, 532 flow [2022-12-13 22:18:51,440 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 22:18:51,448 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 228 places, 255 transitions, 532 flow [2022-12-13 22:18:51,450 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 228 places, 255 transitions, 532 flow [2022-12-13 22:18:51,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 255 transitions, 532 flow [2022-12-13 22:18:51,501 INFO L130 PetriNetUnfolder]: 58/453 cut-off events. [2022-12-13 22:18:51,501 INFO L131 PetriNetUnfolder]: For 8/12 co-relation queries the response was YES. [2022-12-13 22:18:51,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 453 events. 58/453 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2019 event pairs, 0 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 241. Up to 8 conditions per place. [2022-12-13 22:18:51,514 INFO L119 LiptonReduction]: Number of co-enabled transitions 27548 [2022-12-13 22:18:55,106 INFO L134 LiptonReduction]: Checked pairs total: 50628 [2022-12-13 22:18:55,106 INFO L136 LiptonReduction]: Total number of compositions: 213 [2022-12-13 22:18:55,119 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:18:55,124 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;@63e010db, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:18:55,124 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-12-13 22:18:55,127 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-12-13 22:18:55,127 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:18:55,127 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:18:55,128 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 22:18:55,128 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-12-13 22:18:55,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:18:55,132 INFO L85 PathProgramCache]: Analyzing trace with hash 31415079, now seen corresponding path program 1 times [2022-12-13 22:18:55,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:18:55,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380863184] [2022-12-13 22:18:55,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:18:55,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:18:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:18:55,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:18:55,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:18:55,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380863184] [2022-12-13 22:18:55,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380863184] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:18:55,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:18:55,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 22:18:55,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750216679] [2022-12-13 22:18:55,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:18:55,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:18:55,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:18:55,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:18:55,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:18:55,388 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 468 [2022-12-13 22:18:55,391 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 93 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 218.33333333333334) internal successors, (655), 3 states have internal predecessors, (655), 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) [2022-12-13 22:18:55,392 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:18:55,392 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 468 [2022-12-13 22:18:55,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:18:56,337 INFO L130 PetriNetUnfolder]: 8138/12907 cut-off events. [2022-12-13 22:18:56,338 INFO L131 PetriNetUnfolder]: For 176/176 co-relation queries the response was YES. [2022-12-13 22:18:56,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25393 conditions, 12907 events. 8138/12907 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 81370 event pairs, 6197 based on Foata normal form. 854/9328 useless extension candidates. Maximal degree in co-relation 24355. Up to 12309 conditions per place. [2022-12-13 22:18:56,388 INFO L137 encePairwiseOnDemand]: 443/468 looper letters, 81 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2022-12-13 22:18:56,388 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 91 transitions, 370 flow [2022-12-13 22:18:56,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:18:56,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 22:18:56,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 767 transitions. [2022-12-13 22:18:56,400 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5462962962962963 [2022-12-13 22:18:56,400 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 767 transitions. [2022-12-13 22:18:56,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 767 transitions. [2022-12-13 22:18:56,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:18:56,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 767 transitions. [2022-12-13 22:18:56,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.66666666666666) internal successors, (767), 3 states have internal predecessors, (767), 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) [2022-12-13 22:18:56,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 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) [2022-12-13 22:18:56,413 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 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) [2022-12-13 22:18:56,415 INFO L175 Difference]: Start difference. First operand has 72 places, 93 transitions, 208 flow. Second operand 3 states and 767 transitions. [2022-12-13 22:18:56,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 91 transitions, 370 flow [2022-12-13 22:18:56,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 91 transitions, 370 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 22:18:56,420 INFO L231 Difference]: Finished difference. Result has 73 places, 71 transitions, 172 flow [2022-12-13 22:18:56,422 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=73, PETRI_TRANSITIONS=71} [2022-12-13 22:18:56,424 INFO L288 CegarLoopForPetriNet]: 72 programPoint places, 1 predicate places. [2022-12-13 22:18:56,425 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 71 transitions, 172 flow [2022-12-13 22:18:56,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 218.33333333333334) internal successors, (655), 3 states have internal predecessors, (655), 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) [2022-12-13 22:18:56,425 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:18:56,425 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-12-13 22:18:56,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 22:18:56,426 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-12-13 22:18:56,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:18:56,426 INFO L85 PathProgramCache]: Analyzing trace with hash 125183737, now seen corresponding path program 1 times [2022-12-13 22:18:56,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:18:56,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402093276] [2022-12-13 22:18:56,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:18:56,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:18:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:18:56,444 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:18:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:18:56,468 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:18:56,469 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 22:18:56,470 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2022-12-13 22:18:56,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2022-12-13 22:18:56,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2022-12-13 22:18:56,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2022-12-13 22:18:56,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2022-12-13 22:18:56,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2022-12-13 22:18:56,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2022-12-13 22:18:56,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2022-12-13 22:18:56,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2022-12-13 22:18:56,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2022-12-13 22:18:56,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2022-12-13 22:18:56,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2022-12-13 22:18:56,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 26 remaining) [2022-12-13 22:18:56,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2022-12-13 22:18:56,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2022-12-13 22:18:56,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2022-12-13 22:18:56,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2022-12-13 22:18:56,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2022-12-13 22:18:56,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2022-12-13 22:18:56,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2022-12-13 22:18:56,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2022-12-13 22:18:56,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2022-12-13 22:18:56,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2022-12-13 22:18:56,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2022-12-13 22:18:56,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2022-12-13 22:18:56,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2022-12-13 22:18:56,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 22:18:56,474 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 22:18:56,476 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 22:18:56,477 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-13 22:18:56,531 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-12-13 22:18:56,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 352 places, 403 transitions, 854 flow [2022-12-13 22:18:56,764 INFO L130 PetriNetUnfolder]: 197/1354 cut-off events. [2022-12-13 22:18:56,764 INFO L131 PetriNetUnfolder]: For 72/78 co-relation queries the response was YES. [2022-12-13 22:18:56,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1451 conditions, 1354 events. 197/1354 cut-off events. For 72/78 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 8660 event pairs, 1 based on Foata normal form. 0/1062 useless extension candidates. Maximal degree in co-relation 820. Up to 32 conditions per place. [2022-12-13 22:18:56,774 INFO L82 GeneralOperation]: Start removeDead. Operand has 352 places, 403 transitions, 854 flow [2022-12-13 22:18:56,786 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 352 places, 403 transitions, 854 flow [2022-12-13 22:18:56,786 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 22:18:56,786 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 352 places, 403 transitions, 854 flow [2022-12-13 22:18:56,786 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 352 places, 403 transitions, 854 flow [2022-12-13 22:18:56,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 352 places, 403 transitions, 854 flow [2022-12-13 22:18:56,971 INFO L130 PetriNetUnfolder]: 197/1354 cut-off events. [2022-12-13 22:18:56,971 INFO L131 PetriNetUnfolder]: For 72/78 co-relation queries the response was YES. [2022-12-13 22:18:56,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1451 conditions, 1354 events. 197/1354 cut-off events. For 72/78 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 8660 event pairs, 1 based on Foata normal form. 0/1062 useless extension candidates. Maximal degree in co-relation 820. Up to 32 conditions per place. [2022-12-13 22:18:57,045 INFO L119 LiptonReduction]: Number of co-enabled transitions 98264 [2022-12-13 22:19:01,776 INFO L134 LiptonReduction]: Checked pairs total: 208135 [2022-12-13 22:19:01,776 INFO L136 LiptonReduction]: Total number of compositions: 325 [2022-12-13 22:19:01,778 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:19:01,778 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;@63e010db, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:19:01,778 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2022-12-13 22:19:01,780 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2022-12-13 22:19:01,780 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:19:01,780 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:19:01,780 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 22:19:01,780 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-12-13 22:19:01,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:19:01,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1806155056, now seen corresponding path program 1 times [2022-12-13 22:19:01,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:19:01,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998323745] [2022-12-13 22:19:01,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:19:01,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:19:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:19:01,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:19:01,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:19:01,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998323745] [2022-12-13 22:19:01,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998323745] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:19:01,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:19:01,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 22:19:01,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463477141] [2022-12-13 22:19:01,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:19:01,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:19:01,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:19:01,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:19:01,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:19:01,831 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 728 [2022-12-13 22:19:01,833 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 163 transitions, 374 flow. Second operand has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 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) [2022-12-13 22:19:01,833 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:19:01,833 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 728 [2022-12-13 22:19:01,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand