./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a 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_6f68f551-aa82-477a-9be4-85cc4906279b/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f68f551-aa82-477a-9be4-85cc4906279b/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f68f551-aa82-477a-9be4-85cc4906279b/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f68f551-aa82-477a-9be4-85cc4906279b/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f68f551-aa82-477a-9be4-85cc4906279b/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f68f551-aa82-477a-9be4-85cc4906279b/bin/uautomizer-Dbtcem3rbc --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 6ac894f5c6207d1329786eb676509b79ca36f8c33f880cc59ffa30652ab92765 --- 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-5e519f3 [2022-11-02 20:09:02,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:09:02,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:09:02,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:09:02,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:09:02,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:09:02,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:09:02,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:09:02,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:09:02,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:09:02,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:09:02,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:09:02,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:09:02,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:09:02,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:09:02,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:09:02,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:09:02,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:09:02,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:09:02,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:09:02,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:09:02,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:09:02,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:09:02,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:09:02,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:09:02,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:09:02,293 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:09:02,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:09:02,295 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:09:02,296 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:09:02,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:09:02,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:09:02,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:09:02,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:09:02,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:09:02,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:09:02,303 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:09:02,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:09:02,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:09:02,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:09:02,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:09:02,308 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f68f551-aa82-477a-9be4-85cc4906279b/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-02 20:09:02,338 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:09:02,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:09:02,339 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:09:02,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:09:02,340 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:09:02,340 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:09:02,341 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:09:02,342 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:09:02,342 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:09:02,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:09:02,343 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:09:02,343 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:09:02,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:09:02,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:09:02,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:09:02,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:09:02,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:09:02,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:09:02,345 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-02 20:09:02,345 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:09:02,346 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:09:02,346 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:09:02,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:09:02,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:09:02,347 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:09:02,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:09:02,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:09:02,348 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:09:02,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:09:02,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:09:02,349 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:09:02,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:09:02,349 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:09:02,350 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_6f68f551-aa82-477a-9be4-85cc4906279b/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f68f551-aa82-477a-9be4-85cc4906279b/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ac894f5c6207d1329786eb676509b79ca36f8c33f880cc59ffa30652ab92765 [2022-11-02 20:09:02,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:09:02,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:09:02,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:09:02,753 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:09:02,754 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:09:02,756 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f68f551-aa82-477a-9be4-85cc4906279b/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i [2022-11-02 20:09:02,838 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f68f551-aa82-477a-9be4-85cc4906279b/bin/uautomizer-Dbtcem3rbc/data/7a0d7d2ae/d997354ebfe2459bb3023d5485a50cf7/FLAGd75b17a08 [2022-11-02 20:09:03,516 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:09:03,516 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f68f551-aa82-477a-9be4-85cc4906279b/sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i [2022-11-02 20:09:03,534 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f68f551-aa82-477a-9be4-85cc4906279b/bin/uautomizer-Dbtcem3rbc/data/7a0d7d2ae/d997354ebfe2459bb3023d5485a50cf7/FLAGd75b17a08 [2022-11-02 20:09:03,743 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f68f551-aa82-477a-9be4-85cc4906279b/bin/uautomizer-Dbtcem3rbc/data/7a0d7d2ae/d997354ebfe2459bb3023d5485a50cf7 [2022-11-02 20:09:03,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:09:03,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:09:03,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:09:03,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:09:03,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:09:03,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:09:03" (1/1) ... [2022-11-02 20:09:03,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7573755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:03, skipping insertion in model container [2022-11-02 20:09:03,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:09:03" (1/1) ... [2022-11-02 20:09:03,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:09:03,823 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:09:04,446 WARN L230 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_6f68f551-aa82-477a-9be4-85cc4906279b/sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i[47038,47051] [2022-11-02 20:09:04,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:09:04,496 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:09:04,534 WARN L230 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_6f68f551-aa82-477a-9be4-85cc4906279b/sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i[47038,47051] [2022-11-02 20:09:04,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:09:04,640 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:09:04,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:04 WrapperNode [2022-11-02 20:09:04,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:09:04,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:09:04,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:09:04,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:09:04,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:04" (1/1) ... [2022-11-02 20:09:04,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:04" (1/1) ... [2022-11-02 20:09:04,756 INFO L138 Inliner]: procedures = 278, calls = 61, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 218 [2022-11-02 20:09:04,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:09:04,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:09:04,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:09:04,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:09:04,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:04" (1/1) ... [2022-11-02 20:09:04,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:04" (1/1) ... [2022-11-02 20:09:04,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:04" (1/1) ... [2022-11-02 20:09:04,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:04" (1/1) ... [2022-11-02 20:09:04,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:04" (1/1) ... [2022-11-02 20:09:04,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:04" (1/1) ... [2022-11-02 20:09:04,828 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:04" (1/1) ... [2022-11-02 20:09:04,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:04" (1/1) ... [2022-11-02 20:09:04,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:09:04,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:09:04,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:09:04,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:09:04,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:04" (1/1) ... [2022-11-02 20:09:04,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:09:04,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f68f551-aa82-477a-9be4-85cc4906279b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:04,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f68f551-aa82-477a-9be4-85cc4906279b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:04,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f68f551-aa82-477a-9be4-85cc4906279b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:09:04,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:09:04,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:09:04,951 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-02 20:09:04,951 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-02 20:09:04,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:09:04,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:09:04,952 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-02 20:09:04,952 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-02 20:09:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:09:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:09:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:09:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:09:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:09:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:09:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:09:04,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:09:04,957 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:09:05,248 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:09:05,251 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:09:05,803 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:09:05,825 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:09:05,825 INFO L300 CfgBuilder]: Removed 15 assume(true) statements. [2022-11-02 20:09:05,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:09:05 BoogieIcfgContainer [2022-11-02 20:09:05,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:09:05,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:09:05,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:09:05,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:09:05,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:09:03" (1/3) ... [2022-11-02 20:09:05,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10981f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:09:05, skipping insertion in model container [2022-11-02 20:09:05,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:04" (2/3) ... [2022-11-02 20:09:05,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10981f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:09:05, skipping insertion in model container [2022-11-02 20:09:05,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:09:05" (3/3) ... [2022-11-02 20:09:05,851 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_82-list_racefree.i [2022-11-02 20:09:05,863 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:09:05,877 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:09:05,877 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-02 20:09:05,877 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:09:06,083 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-02 20:09:06,157 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 20:09:06,179 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 226 places, 244 transitions, 510 flow [2022-11-02 20:09:06,185 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 226 places, 244 transitions, 510 flow [2022-11-02 20:09:06,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 226 places, 244 transitions, 510 flow [2022-11-02 20:09:06,455 INFO L130 PetriNetUnfolder]: 52/468 cut-off events. [2022-11-02 20:09:06,455 INFO L131 PetriNetUnfolder]: For 8/15 co-relation queries the response was YES. [2022-11-02 20:09:06,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 468 events. 52/468 cut-off events. For 8/15 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1923 event pairs, 0 based on Foata normal form. 0/383 useless extension candidates. Maximal degree in co-relation 233. Up to 8 conditions per place. [2022-11-02 20:09:06,492 INFO L118 LiptonReduction]: Number of co-enabled transitions 19160 [2022-11-02 20:09:24,976 INFO L133 LiptonReduction]: Checked pairs total: 34042 [2022-11-02 20:09:24,976 INFO L135 LiptonReduction]: Total number of compositions: 216 [2022-11-02 20:09:24,986 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 65 places, 77 transitions, 176 flow [2022-11-02 20:09:25,227 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3415 states, 3333 states have (on average 3.1653165316531653) internal successors, (10550), 3414 states have internal predecessors, (10550), 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) [2022-11-02 20:09:25,254 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:09:25,267 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;@74a5486a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:09:25,267 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-02 20:09:25,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 3415 states, 3333 states have (on average 3.1653165316531653) internal successors, (10550), 3414 states have internal predecessors, (10550), 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) [2022-11-02 20:09:25,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-02 20:09:25,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:09:25,291 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-02 20:09:25,292 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-02 20:09:25,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:25,298 INFO L85 PathProgramCache]: Analyzing trace with hash 29366861, now seen corresponding path program 1 times [2022-11-02 20:09:25,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:25,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067058536] [2022-11-02 20:09:25,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:25,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:25,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:09:25,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:09:25,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067058536] [2022-11-02 20:09:25,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067058536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:09:25,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:09:25,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 20:09:25,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423052282] [2022-11-02 20:09:25,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:09:25,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:09:25,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:09:25,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:09:25,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:09:25,779 INFO L87 Difference]: Start difference. First operand has 3415 states, 3333 states have (on average 3.1653165316531653) internal successors, (10550), 3414 states have internal predecessors, (10550), 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) [2022-11-02 20:09:26,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:09:26,057 INFO L93 Difference]: Finished difference Result 3245 states and 8798 transitions. [2022-11-02 20:09:26,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:09:26,060 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 [2022-11-02 20:09:26,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:09:26,109 INFO L225 Difference]: With dead ends: 3245 [2022-11-02 20:09:26,110 INFO L226 Difference]: Without dead ends: 3063 [2022-11-02 20:09:26,111 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 [2022-11-02 20:09:26,117 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 8 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:09:26,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 16 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:09:26,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3063 states. [2022-11-02 20:09:26,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3063 to 3063. [2022-11-02 20:09:26,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3063 states, 3003 states have (on average 2.760905760905761) internal successors, (8291), 3062 states have internal predecessors, (8291), 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) [2022-11-02 20:09:26,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3063 states to 3063 states and 8291 transitions. [2022-11-02 20:09:26,337 INFO L78 Accepts]: Start accepts. Automaton has 3063 states and 8291 transitions. Word has length 4 [2022-11-02 20:09:26,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:09:26,337 INFO L495 AbstractCegarLoop]: Abstraction has 3063 states and 8291 transitions. [2022-11-02 20:09:26,338 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) [2022-11-02 20:09:26,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3063 states and 8291 transitions. [2022-11-02 20:09:26,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 20:09:26,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:09:26,339 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-02 20:09:26,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:09:26,340 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-02 20:09:26,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:26,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1843191001, now seen corresponding path program 1 times [2022-11-02 20:09:26,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:26,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701800693] [2022-11-02 20:09:26,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:26,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:26,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:26,381 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:26,427 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:26,428 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:09:26,430 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2022-11-02 20:09:26,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-11-02 20:09:26,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-11-02 20:09:26,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-11-02 20:09:26,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-11-02 20:09:26,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-11-02 20:09:26,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-11-02 20:09:26,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-11-02 20:09:26,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-11-02 20:09:26,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-11-02 20:09:26,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-11-02 20:09:26,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-11-02 20:09:26,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-11-02 20:09:26,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 18 remaining) [2022-11-02 20:09:26,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-11-02 20:09:26,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-11-02 20:09:26,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-11-02 20:09:26,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-11-02 20:09:26,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:09:26,441 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-02 20:09:26,443 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-02 20:09:26,444 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-02 20:09:26,523 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-02 20:09:26,529 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-02 20:09:26,530 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 341 places, 374 transitions, 796 flow [2022-11-02 20:09:26,530 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 341 places, 374 transitions, 796 flow [2022-11-02 20:09:26,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 341 places, 374 transitions, 796 flow [2022-11-02 20:09:27,078 INFO L130 PetriNetUnfolder]: 191/1429 cut-off events. [2022-11-02 20:09:27,079 INFO L131 PetriNetUnfolder]: For 72/95 co-relation queries the response was YES. [2022-11-02 20:09:27,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1526 conditions, 1429 events. 191/1429 cut-off events. For 72/95 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 9302 event pairs, 2 based on Foata normal form. 0/1148 useless extension candidates. Maximal degree in co-relation 883. Up to 32 conditions per place. [2022-11-02 20:09:27,209 INFO L118 LiptonReduction]: Number of co-enabled transitions 71412 [2022-11-02 20:11:18,923 INFO L133 LiptonReduction]: Checked pairs total: 138714 [2022-11-02 20:11:18,923 INFO L135 LiptonReduction]: Total number of compositions: 325 [2022-11-02 20:11:18,925 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 103 places, 128 transitions, 304 flow