./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 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_9bd66708-52b4-49c7-8742-11e2693d9a74/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd66708-52b4-49c7-8742-11e2693d9a74/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd66708-52b4-49c7-8742-11e2693d9a74/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd66708-52b4-49c7-8742-11e2693d9a74/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd66708-52b4-49c7-8742-11e2693d9a74/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd66708-52b4-49c7-8742-11e2693d9a74/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 50de8acec85b0b2508f1f33521d9ab6717fa1b5141d6b9e2d08fcb4af894112b --- 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-4e7fbc6 [2022-11-23 14:58:14,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:58:14,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:58:14,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:58:14,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:58:14,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:58:14,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:58:14,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:58:14,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:58:14,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:58:14,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:58:14,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:58:14,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:58:14,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:58:14,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:58:14,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:58:14,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:58:14,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:58:14,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:58:14,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:58:14,766 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:58:14,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:58:14,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:58:14,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:58:14,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:58:14,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:58:14,774 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:58:14,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:58:14,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:58:14,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:58:14,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:58:14,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:58:14,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:58:14,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:58:14,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:58:14,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:58:14,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:58:14,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:58:14,782 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:58:14,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:58:14,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:58:14,784 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd66708-52b4-49c7-8742-11e2693d9a74/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 14:58:14,815 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:58:14,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:58:14,815 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:58:14,816 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:58:14,816 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:58:14,817 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:58:14,817 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:58:14,817 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:58:14,817 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:58:14,817 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:58:14,818 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:58:14,818 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:58:14,818 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:58:14,818 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:58:14,819 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:58:14,819 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:58:14,819 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:58:14,819 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:58:14,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:58:14,820 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:58:14,820 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:58:14,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:58:14,821 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:58:14,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:58:14,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:58:14,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:58:14,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:58:14,822 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 14:58:14,822 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:58:14,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:58:14,823 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:58:14,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:58:14,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:58:14,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:58:14,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:58:14,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:58:14,824 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:58:14,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:58:14,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:58:14,825 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:58:14,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:58:14,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:58:14,825 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:58:14,826 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_9bd66708-52b4-49c7-8742-11e2693d9a74/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd66708-52b4-49c7-8742-11e2693d9a74/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50de8acec85b0b2508f1f33521d9ab6717fa1b5141d6b9e2d08fcb4af894112b [2022-11-23 14:58:15,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:58:15,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:58:15,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:58:15,161 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:58:15,161 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:58:15,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd66708-52b4-49c7-8742-11e2693d9a74/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i [2022-11-23 14:58:18,144 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:58:18,480 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:58:18,480 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd66708-52b4-49c7-8742-11e2693d9a74/sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i [2022-11-23 14:58:18,499 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd66708-52b4-49c7-8742-11e2693d9a74/bin/utaipan-Q6hlc19bkW/data/ad7cad127/615942afdc754031a5dd4d3bbf6e25a8/FLAG25fd9d185 [2022-11-23 14:58:18,513 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd66708-52b4-49c7-8742-11e2693d9a74/bin/utaipan-Q6hlc19bkW/data/ad7cad127/615942afdc754031a5dd4d3bbf6e25a8 [2022-11-23 14:58:18,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:58:18,517 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:58:18,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:58:18,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:58:18,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:58:18,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:58:18" (1/1) ... [2022-11-23 14:58:18,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1731bf58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:18, skipping insertion in model container [2022-11-23 14:58:18,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:58:18" (1/1) ... [2022-11-23 14:58:18,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:58:18,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:58:18,902 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_9bd66708-52b4-49c7-8742-11e2693d9a74/sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i[30176,30189] [2022-11-23 14:58:18,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:58:18,944 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:58:19,008 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_9bd66708-52b4-49c7-8742-11e2693d9a74/sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i[30176,30189] [2022-11-23 14:58:19,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:58:19,061 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:58:19,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:19 WrapperNode [2022-11-23 14:58:19,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:58:19,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:58:19,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:58:19,063 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:58:19,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:19" (1/1) ... [2022-11-23 14:58:19,096 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:19" (1/1) ... [2022-11-23 14:58:19,126 INFO L138 Inliner]: procedures = 172, calls = 37, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 216 [2022-11-23 14:58:19,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:58:19,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:58:19,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:58:19,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:58:19,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:19" (1/1) ... [2022-11-23 14:58:19,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:19" (1/1) ... [2022-11-23 14:58:19,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:19" (1/1) ... [2022-11-23 14:58:19,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:19" (1/1) ... [2022-11-23 14:58:19,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:19" (1/1) ... [2022-11-23 14:58:19,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:19" (1/1) ... [2022-11-23 14:58:19,188 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:19" (1/1) ... [2022-11-23 14:58:19,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:19" (1/1) ... [2022-11-23 14:58:19,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:58:19,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:58:19,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:58:19,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:58:19,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:19" (1/1) ... [2022-11-23 14:58:19,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:58:19,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd66708-52b4-49c7-8742-11e2693d9a74/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:58:19,238 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd66708-52b4-49c7-8742-11e2693d9a74/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:58:19,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bd66708-52b4-49c7-8742-11e2693d9a74/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:58:19,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:58:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-23 14:58:19,274 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-23 14:58:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:58:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 14:58:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:58:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:58:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-23 14:58:19,274 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-23 14:58:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:58:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:58:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:58:19,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:58:19,277 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 14:58:19,405 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:58:19,407 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:58:19,840 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:58:19,851 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:58:19,852 INFO L300 CfgBuilder]: Removed 24 assume(true) statements. [2022-11-23 14:58:19,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:58:19 BoogieIcfgContainer [2022-11-23 14:58:19,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:58:19,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:58:19,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:58:19,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:58:19,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:58:18" (1/3) ... [2022-11-23 14:58:19,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d14471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:58:19, skipping insertion in model container [2022-11-23 14:58:19,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:58:19" (2/3) ... [2022-11-23 14:58:19,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d14471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:58:19, skipping insertion in model container [2022-11-23 14:58:19,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:58:19" (3/3) ... [2022-11-23 14:58:19,870 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_04-munge_racefree.i [2022-11-23 14:58:19,887 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 14:58:19,899 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:58:19,899 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-23 14:58:19,899 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 14:58:20,089 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-23 14:58:20,151 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:58:20,172 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 213 places, 240 transitions, 502 flow [2022-11-23 14:58:20,178 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 213 places, 240 transitions, 502 flow [2022-11-23 14:58:20,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 240 transitions, 502 flow [2022-11-23 14:58:20,440 INFO L130 PetriNetUnfolder]: 58/431 cut-off events. [2022-11-23 14:58:20,440 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-23 14:58:20,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 451 conditions, 431 events. 58/431 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1904 event pairs, 0 based on Foata normal form. 0/337 useless extension candidates. Maximal degree in co-relation 227. Up to 8 conditions per place. [2022-11-23 14:58:20,472 INFO L119 LiptonReduction]: Number of co-enabled transitions 23936 [2022-11-23 14:58:26,043 INFO L134 LiptonReduction]: Checked pairs total: 41004 [2022-11-23 14:58:26,043 INFO L136 LiptonReduction]: Total number of compositions: 210 [2022-11-23 14:58:26,051 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 94 transitions, 210 flow [2022-11-23 14:58:26,304 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5708 states, 5474 states have (on average 3.863171355498721) internal successors, (21147), 5707 states have internal predecessors, (21147), 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) [2022-11-23 14:58:26,328 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:58:26,336 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=FINITE_AUTOMATA, 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;@7c6a2e03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:58:26,336 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-23 14:58:26,357 INFO L276 IsEmpty]: Start isEmpty. Operand has 5708 states, 5474 states have (on average 3.863171355498721) internal successors, (21147), 5707 states have internal predecessors, (21147), 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) [2022-11-23 14:58:26,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 14:58:26,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:58:26,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 14:58:26,364 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-11-23 14:58:26,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:58:26,371 INFO L85 PathProgramCache]: Analyzing trace with hash 29980828, now seen corresponding path program 1 times [2022-11-23 14:58:26,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:58:26,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600987046] [2022-11-23 14:58:26,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:58:26,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:58:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:58:26,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:58:26,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:58:26,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600987046] [2022-11-23 14:58:26,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600987046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:58:26,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:58:26,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 14:58:26,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782532577] [2022-11-23 14:58:26,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:58:26,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:58:26,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:58:26,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:58:26,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:58:26,759 INFO L87 Difference]: Start difference. First operand has 5708 states, 5474 states have (on average 3.863171355498721) internal successors, (21147), 5707 states have internal predecessors, (21147), 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-23 14:58:27,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:58:27,002 INFO L93 Difference]: Finished difference Result 5538 states and 15537 transitions. [2022-11-23 14:58:27,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:58:27,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2022-11-23 14:58:27,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:58:27,054 INFO L225 Difference]: With dead ends: 5538 [2022-11-23 14:58:27,054 INFO L226 Difference]: Without dead ends: 5454 [2022-11-23 14:58:27,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:58:27,058 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 21 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:58:27,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 20 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:58:27,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5454 states. [2022-11-23 14:58:27,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5454 to 5454. [2022-11-23 14:58:27,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5454 states, 5250 states have (on average 2.9123809523809525) internal successors, (15290), 5453 states have internal predecessors, (15290), 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) [2022-11-23 14:58:27,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 15290 transitions. [2022-11-23 14:58:27,360 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 15290 transitions. Word has length 4 [2022-11-23 14:58:27,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:58:27,360 INFO L495 AbstractCegarLoop]: Abstraction has 5454 states and 15290 transitions. [2022-11-23 14:58:27,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-23 14:58:27,361 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 15290 transitions. [2022-11-23 14:58:27,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 14:58:27,361 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:58:27,362 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-23 14:58:27,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:58:27,362 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-11-23 14:58:27,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:58:27,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1253167168, now seen corresponding path program 1 times [2022-11-23 14:58:27,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:58:27,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239358816] [2022-11-23 14:58:27,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:58:27,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:58:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:58:27,390 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:58:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:58:27,424 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 14:58:27,425 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:58:27,427 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2022-11-23 14:58:27,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2022-11-23 14:58:27,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2022-11-23 14:58:27,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2022-11-23 14:58:27,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2022-11-23 14:58:27,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2022-11-23 14:58:27,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2022-11-23 14:58:27,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2022-11-23 14:58:27,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2022-11-23 14:58:27,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2022-11-23 14:58:27,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2022-11-23 14:58:27,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2022-11-23 14:58:27,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 26 remaining) [2022-11-23 14:58:27,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2022-11-23 14:58:27,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2022-11-23 14:58:27,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2022-11-23 14:58:27,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2022-11-23 14:58:27,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2022-11-23 14:58:27,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2022-11-23 14:58:27,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2022-11-23 14:58:27,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2022-11-23 14:58:27,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2022-11-23 14:58:27,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2022-11-23 14:58:27,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2022-11-23 14:58:27,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2022-11-23 14:58:27,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2022-11-23 14:58:27,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:58:27,441 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 14:58:27,444 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-23 14:58:27,445 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-23 14:58:27,521 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-23 14:58:27,533 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:58:27,533 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 323 places, 374 transitions, 796 flow [2022-11-23 14:58:27,534 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 323 places, 374 transitions, 796 flow [2022-11-23 14:58:27,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 323 places, 374 transitions, 796 flow [2022-11-23 14:58:27,977 INFO L130 PetriNetUnfolder]: 197/1297 cut-off events. [2022-11-23 14:58:27,977 INFO L131 PetriNetUnfolder]: For 72/78 co-relation queries the response was YES. [2022-11-23 14:58:27,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1394 conditions, 1297 events. 197/1297 cut-off events. For 72/78 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 8145 event pairs, 1 based on Foata normal form. 0/1005 useless extension candidates. Maximal degree in co-relation 780. Up to 32 conditions per place. [2022-11-23 14:58:28,074 INFO L119 LiptonReduction]: Number of co-enabled transitions 83200 [2022-11-23 14:58:35,309 INFO L134 LiptonReduction]: Checked pairs total: 182744 [2022-11-23 14:58:35,309 INFO L136 LiptonReduction]: Total number of compositions: 320 [2022-11-23 14:58:35,313 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 120 places, 165 transitions, 378 flow