./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_08-glob_fld_2_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races 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_c14978fd-d591-458e-a97d-7d34d0d05fb0/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14978fd-d591-458e-a97d-7d34d0d05fb0/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_c14978fd-d591-458e-a97d-7d34d0d05fb0/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14978fd-d591-458e-a97d-7d34d0d05fb0/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_08-glob_fld_2_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14978fd-d591-458e-a97d-7d34d0d05fb0/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14978fd-d591-458e-a97d-7d34d0d05fb0/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9df11a052e2c7230e1edfb210274e89333c68b57c4137552a35d25fe623d9561 --- 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 21:06:54,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:06:54,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:06:54,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:06:54,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:06:54,878 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:06:54,879 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:06:54,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:06:54,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:06:54,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:06:54,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:06:54,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:06:54,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:06:54,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:06:54,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:06:54,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:06:54,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:06:54,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:06:54,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:06:54,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:06:54,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:06:54,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:06:54,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:06:54,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:06:54,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:06:54,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:06:54,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:06:54,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:06:54,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:06:54,921 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:06:54,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:06:54,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:06:54,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:06:54,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:06:54,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:06:54,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:06:54,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:06:54,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:06:54,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:06:54,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:06:54,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:06:54,933 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14978fd-d591-458e-a97d-7d34d0d05fb0/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 21:06:54,968 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:06:54,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:06:54,968 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:06:54,968 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:06:54,969 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:06:54,969 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:06:54,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:06:54,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:06:54,970 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:06:54,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:06:54,971 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:06:54,971 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:06:54,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:06:54,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:06:54,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:06:54,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:06:54,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:06:54,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:06:54,972 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 21:06:54,973 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:06:54,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:06:54,973 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:06:54,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:06:54,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:06:54,974 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:06:54,974 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:06:54,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:06:54,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:06:54,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:06:54,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:06:54,975 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:06:54,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:06:54,975 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:06:54,975 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:06:54,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:06:54,976 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_c14978fd-d591-458e-a97d-7d34d0d05fb0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14978fd-d591-458e-a97d-7d34d0d05fb0/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9df11a052e2c7230e1edfb210274e89333c68b57c4137552a35d25fe623d9561 [2022-11-02 21:06:55,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:06:55,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:06:55,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:06:55,286 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:06:55,288 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:06:55,290 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14978fd-d591-458e-a97d-7d34d0d05fb0/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/05-lval_ls_08-glob_fld_2_rc.i [2022-11-02 21:06:55,374 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14978fd-d591-458e-a97d-7d34d0d05fb0/bin/uautomizer-Dbtcem3rbc/data/b8a4ec6be/6290405e82cb46069a3a3c8cd643bbbb/FLAGce9203476 [2022-11-02 21:06:55,852 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:06:55,853 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14978fd-d591-458e-a97d-7d34d0d05fb0/sv-benchmarks/c/goblint-regression/05-lval_ls_08-glob_fld_2_rc.i [2022-11-02 21:06:55,870 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14978fd-d591-458e-a97d-7d34d0d05fb0/bin/uautomizer-Dbtcem3rbc/data/b8a4ec6be/6290405e82cb46069a3a3c8cd643bbbb/FLAGce9203476 [2022-11-02 21:06:56,185 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14978fd-d591-458e-a97d-7d34d0d05fb0/bin/uautomizer-Dbtcem3rbc/data/b8a4ec6be/6290405e82cb46069a3a3c8cd643bbbb [2022-11-02 21:06:56,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:06:56,189 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:06:56,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:06:56,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:06:56,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:06:56,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:06:56" (1/1) ... [2022-11-02 21:06:56,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31d0fd5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:56, skipping insertion in model container [2022-11-02 21:06:56,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:06:56" (1/1) ... [2022-11-02 21:06:56,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:06:56,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:06:56,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:06:56,720 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:06:56,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:06:56,814 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:06:56,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:56 WrapperNode [2022-11-02 21:06:56,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:06:56,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:06:56,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:06:56,816 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:06:56,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:56" (1/1) ... [2022-11-02 21:06:56,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:56" (1/1) ... [2022-11-02 21:06:56,862 INFO L138 Inliner]: procedures = 161, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 50 [2022-11-02 21:06:56,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:06:56,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:06:56,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:06:56,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:06:56,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:56" (1/1) ... [2022-11-02 21:06:56,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:56" (1/1) ... [2022-11-02 21:06:56,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:56" (1/1) ... [2022-11-02 21:06:56,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:56" (1/1) ... [2022-11-02 21:06:56,887 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:56" (1/1) ... [2022-11-02 21:06:56,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:56" (1/1) ... [2022-11-02 21:06:56,890 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:56" (1/1) ... [2022-11-02 21:06:56,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:56" (1/1) ... [2022-11-02 21:06:56,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:06:56,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:06:56,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:06:56,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:06:56,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:56" (1/1) ... [2022-11-02 21:06:56,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:06:56,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14978fd-d591-458e-a97d-7d34d0d05fb0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:56,926 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14978fd-d591-458e-a97d-7d34d0d05fb0/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:06:56,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14978fd-d591-458e-a97d-7d34d0d05fb0/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:06:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:06:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:06:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:06:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:06:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 21:06:56,970 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 21:06:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:06:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:06:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:06:56,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:06:56,972 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 21:06:57,094 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:06:57,099 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:06:57,280 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:06:57,288 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:06:57,288 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 21:06:57,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:06:57 BoogieIcfgContainer [2022-11-02 21:06:57,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:06:57,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:06:57,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:06:57,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:06:57,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:06:56" (1/3) ... [2022-11-02 21:06:57,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b1f51c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:06:57, skipping insertion in model container [2022-11-02 21:06:57,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:06:56" (2/3) ... [2022-11-02 21:06:57,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b1f51c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:06:57, skipping insertion in model container [2022-11-02 21:06:57,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:06:57" (3/3) ... [2022-11-02 21:06:57,300 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_08-glob_fld_2_rc.i [2022-11-02 21:06:57,309 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:06:57,319 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:06:57,319 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-02 21:06:57,320 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:06:57,404 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 21:06:57,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 99 transitions, 208 flow [2022-11-02 21:06:57,622 INFO L130 PetriNetUnfolder]: 0/97 cut-off events. [2022-11-02 21:06:57,623 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:06:57,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 97 events. 0/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 138 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-02 21:06:57,635 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 99 transitions, 208 flow [2022-11-02 21:06:57,639 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 97 transitions, 200 flow [2022-11-02 21:06:57,650 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:06:57,657 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;@7bd85f10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:06:57,657 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-02 21:06:57,668 INFO L130 PetriNetUnfolder]: 0/30 cut-off events. [2022-11-02 21:06:57,668 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:06:57,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:06:57,669 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:57,670 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 7 more)] === [2022-11-02 21:06:57,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:57,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1717480794, now seen corresponding path program 1 times [2022-11-02 21:06:57,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:57,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860117206] [2022-11-02 21:06:57,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:57,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:58,544 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 21:06:58,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:58,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860117206] [2022-11-02 21:06:58,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860117206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:58,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:58,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:06:58,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994318657] [2022-11-02 21:06:58,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:58,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:06:58,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:58,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:06:58,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:06:58,616 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 99 [2022-11-02 21:06:58,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 97 transitions, 200 flow. Second operand has 6 states, 6 states have (on average 53.666666666666664) internal successors, (322), 6 states have internal predecessors, (322), 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 21:06:58,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:06:58,624 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 99 [2022-11-02 21:06:58,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:02,258 INFO L130 PetriNetUnfolder]: 10312/20345 cut-off events. [2022-11-02 21:07:02,259 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-02 21:07:02,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36438 conditions, 20345 events. 10312/20345 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 612. Compared 177677 event pairs, 2955 based on Foata normal form. 0/18026 useless extension candidates. Maximal degree in co-relation 36410. Up to 6352 conditions per place. [2022-11-02 21:07:02,418 INFO L137 encePairwiseOnDemand]: 77/99 looper letters, 175 selfloop transitions, 42 changer transitions 0/267 dead transitions. [2022-11-02 21:07:02,418 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 267 transitions, 986 flow [2022-11-02 21:07:02,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:07:02,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:07:02,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 531 transitions. [2022-11-02 21:07:02,441 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8939393939393939 [2022-11-02 21:07:02,442 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 531 transitions. [2022-11-02 21:07:02,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 531 transitions. [2022-11-02 21:07:02,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:02,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 531 transitions. [2022-11-02 21:07:02,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.5) internal successors, (531), 6 states have internal predecessors, (531), 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 21:07:02,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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 21:07:02,462 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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 21:07:02,464 INFO L175 Difference]: Start difference. First operand has 104 places, 97 transitions, 200 flow. Second operand 6 states and 531 transitions. [2022-11-02 21:07:02,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 267 transitions, 986 flow [2022-11-02 21:07:02,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 267 transitions, 980 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:07:02,476 INFO L231 Difference]: Finished difference. Result has 112 places, 143 transitions, 514 flow [2022-11-02 21:07:02,478 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=514, PETRI_PLACES=112, PETRI_TRANSITIONS=143} [2022-11-02 21:07:02,482 INFO L287 CegarLoopForPetriNet]: 104 programPoint places, 8 predicate places. [2022-11-02 21:07:02,482 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 143 transitions, 514 flow [2022-11-02 21:07:02,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.666666666666664) internal successors, (322), 6 states have internal predecessors, (322), 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 21:07:02,483 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:02,484 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:02,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:07:02,484 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 7 more)] === [2022-11-02 21:07:02,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:02,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1637372685, now seen corresponding path program 1 times [2022-11-02 21:07:02,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:02,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70260285] [2022-11-02 21:07:02,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:02,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:02,916 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 21:07:02,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:02,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70260285] [2022-11-02 21:07:02,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70260285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:02,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:02,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:07:02,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52139402] [2022-11-02 21:07:02,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:02,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:07:02,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:02,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:07:02,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:07:02,921 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 99 [2022-11-02 21:07:02,922 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 143 transitions, 514 flow. Second operand has 6 states, 6 states have (on average 53.833333333333336) internal successors, (323), 6 states have internal predecessors, (323), 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 21:07:02,922 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:02,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 99 [2022-11-02 21:07:02,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:06,022 INFO L130 PetriNetUnfolder]: 9600/19690 cut-off events. [2022-11-02 21:07:06,022 INFO L131 PetriNetUnfolder]: For 12085/12085 co-relation queries the response was YES. [2022-11-02 21:07:06,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46076 conditions, 19690 events. 9600/19690 cut-off events. For 12085/12085 co-relation queries the response was YES. Maximal size of possible extension queue 508. Compared 176514 event pairs, 4048 based on Foata normal form. 0/19300 useless extension candidates. Maximal degree in co-relation 46045. Up to 8402 conditions per place. [2022-11-02 21:07:06,164 INFO L137 encePairwiseOnDemand]: 93/99 looper letters, 383 selfloop transitions, 5 changer transitions 0/438 dead transitions. [2022-11-02 21:07:06,165 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 438 transitions, 2776 flow [2022-11-02 21:07:06,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:07:06,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:07:06,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 471 transitions. [2022-11-02 21:07:06,168 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7929292929292929 [2022-11-02 21:07:06,168 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 471 transitions. [2022-11-02 21:07:06,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 471 transitions. [2022-11-02 21:07:06,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:06,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 471 transitions. [2022-11-02 21:07:06,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 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 21:07:06,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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 21:07:06,174 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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 21:07:06,174 INFO L175 Difference]: Start difference. First operand has 112 places, 143 transitions, 514 flow. Second operand 6 states and 471 transitions. [2022-11-02 21:07:06,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 438 transitions, 2776 flow [2022-11-02 21:07:06,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 438 transitions, 2776 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:07:06,201 INFO L231 Difference]: Finished difference. Result has 116 places, 142 transitions, 522 flow [2022-11-02 21:07:06,201 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=522, PETRI_PLACES=116, PETRI_TRANSITIONS=142} [2022-11-02 21:07:06,202 INFO L287 CegarLoopForPetriNet]: 104 programPoint places, 12 predicate places. [2022-11-02 21:07:06,202 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 142 transitions, 522 flow [2022-11-02 21:07:06,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.833333333333336) internal successors, (323), 6 states have internal predecessors, (323), 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 21:07:06,203 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:06,203 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:06,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:07:06,204 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 7 more)] === [2022-11-02 21:07:06,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:06,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1794345567, now seen corresponding path program 1 times [2022-11-02 21:07:06,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:06,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274186164] [2022-11-02 21:07:06,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:06,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:06,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:06,560 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 21:07:06,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:06,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274186164] [2022-11-02 21:07:06,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274186164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:06,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:06,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:07:06,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445772778] [2022-11-02 21:07:06,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:06,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:07:06,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:06,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:07:06,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:07:06,567 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 99 [2022-11-02 21:07:06,568 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 142 transitions, 522 flow. Second operand has 6 states, 6 states have (on average 52.833333333333336) internal successors, (317), 6 states have internal predecessors, (317), 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 21:07:06,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:06,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 99 [2022-11-02 21:07:06,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:10,570 INFO L130 PetriNetUnfolder]: 14399/27990 cut-off events. [2022-11-02 21:07:10,570 INFO L131 PetriNetUnfolder]: For 13932/13950 co-relation queries the response was YES. [2022-11-02 21:07:10,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68809 conditions, 27990 events. 14399/27990 cut-off events. For 13932/13950 co-relation queries the response was YES. Maximal size of possible extension queue 778. Compared 253181 event pairs, 7038 based on Foata normal form. 341/27728 useless extension candidates. Maximal degree in co-relation 68777. Up to 14920 conditions per place. [2022-11-02 21:07:10,772 INFO L137 encePairwiseOnDemand]: 82/99 looper letters, 188 selfloop transitions, 53 changer transitions 0/289 dead transitions. [2022-11-02 21:07:10,772 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 289 transitions, 1540 flow [2022-11-02 21:07:10,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:07:10,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:07:10,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 481 transitions. [2022-11-02 21:07:10,775 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8097643097643098 [2022-11-02 21:07:10,775 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 481 transitions. [2022-11-02 21:07:10,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 481 transitions. [2022-11-02 21:07:10,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:10,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 481 transitions. [2022-11-02 21:07:10,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 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 21:07:10,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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 21:07:10,779 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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 21:07:10,780 INFO L175 Difference]: Start difference. First operand has 116 places, 142 transitions, 522 flow. Second operand 6 states and 481 transitions. [2022-11-02 21:07:10,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 289 transitions, 1540 flow [2022-11-02 21:07:10,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 289 transitions, 1490 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:07:10,798 INFO L231 Difference]: Finished difference. Result has 121 places, 195 transitions, 1028 flow [2022-11-02 21:07:10,799 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1028, PETRI_PLACES=121, PETRI_TRANSITIONS=195} [2022-11-02 21:07:10,801 INFO L287 CegarLoopForPetriNet]: 104 programPoint places, 17 predicate places. [2022-11-02 21:07:10,801 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 195 transitions, 1028 flow [2022-11-02 21:07:10,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.833333333333336) internal successors, (317), 6 states have internal predecessors, (317), 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 21:07:10,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:10,802 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:10,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:07:10,803 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 7 more)] === [2022-11-02 21:07:10,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:10,805 INFO L85 PathProgramCache]: Analyzing trace with hash 517297037, now seen corresponding path program 1 times [2022-11-02 21:07:10,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:10,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997849693] [2022-11-02 21:07:10,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:10,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:11,182 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 21:07:11,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:11,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997849693] [2022-11-02 21:07:11,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997849693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:11,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:11,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:07:11,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279533352] [2022-11-02 21:07:11,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:11,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:07:11,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:11,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:07:11,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:07:11,192 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 99 [2022-11-02 21:07:11,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 195 transitions, 1028 flow. Second operand has 6 states, 6 states have (on average 53.0) internal successors, (318), 6 states have internal predecessors, (318), 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 21:07:11,193 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:11,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 99 [2022-11-02 21:07:11,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:16,526 INFO L130 PetriNetUnfolder]: 17969/33772 cut-off events. [2022-11-02 21:07:16,526 INFO L131 PetriNetUnfolder]: For 33397/33418 co-relation queries the response was YES. [2022-11-02 21:07:16,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95682 conditions, 33772 events. 17969/33772 cut-off events. For 33397/33418 co-relation queries the response was YES. Maximal size of possible extension queue 992. Compared 305053 event pairs, 8803 based on Foata normal form. 392/33337 useless extension candidates. Maximal degree in co-relation 95646. Up to 19243 conditions per place. [2022-11-02 21:07:16,830 INFO L137 encePairwiseOnDemand]: 82/99 looper letters, 229 selfloop transitions, 68 changer transitions 0/349 dead transitions. [2022-11-02 21:07:16,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 349 transitions, 2294 flow [2022-11-02 21:07:16,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:07:16,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:07:16,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 477 transitions. [2022-11-02 21:07:16,837 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.803030303030303 [2022-11-02 21:07:16,837 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 477 transitions. [2022-11-02 21:07:16,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 477 transitions. [2022-11-02 21:07:16,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:16,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 477 transitions. [2022-11-02 21:07:16,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 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 21:07:16,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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 21:07:16,844 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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 21:07:16,844 INFO L175 Difference]: Start difference. First operand has 121 places, 195 transitions, 1028 flow. Second operand 6 states and 477 transitions. [2022-11-02 21:07:16,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 349 transitions, 2294 flow [2022-11-02 21:07:17,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 349 transitions, 2286 flow, removed 4 selfloop flow, removed 0 redundant places. [2022-11-02 21:07:17,050 INFO L231 Difference]: Finished difference. Result has 131 places, 256 transitions, 1740 flow [2022-11-02 21:07:17,051 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=1020, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1740, PETRI_PLACES=131, PETRI_TRANSITIONS=256} [2022-11-02 21:07:17,053 INFO L287 CegarLoopForPetriNet]: 104 programPoint places, 27 predicate places. [2022-11-02 21:07:17,053 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 256 transitions, 1740 flow [2022-11-02 21:07:17,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.0) internal successors, (318), 6 states have internal predecessors, (318), 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 21:07:17,055 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:17,055 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:17,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:07:17,064 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 7 more)] === [2022-11-02 21:07:17,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:17,065 INFO L85 PathProgramCache]: Analyzing trace with hash -372314589, now seen corresponding path program 1 times [2022-11-02 21:07:17,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:17,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875013671] [2022-11-02 21:07:17,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:17,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:07:17,397 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 21:07:17,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:07:17,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875013671] [2022-11-02 21:07:17,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875013671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:07:17,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:07:17,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:07:17,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011972075] [2022-11-02 21:07:17,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:07:17,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:07:17,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:07:17,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:07:17,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:07:17,401 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 99 [2022-11-02 21:07:17,402 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 256 transitions, 1740 flow. Second operand has 6 states, 6 states have (on average 52.166666666666664) internal successors, (313), 6 states have internal predecessors, (313), 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 21:07:17,402 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:07:17,402 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 99 [2022-11-02 21:07:17,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:07:23,078 INFO L130 PetriNetUnfolder]: 17259/32329 cut-off events. [2022-11-02 21:07:23,079 INFO L131 PetriNetUnfolder]: For 75519/75592 co-relation queries the response was YES. [2022-11-02 21:07:23,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108163 conditions, 32329 events. 17259/32329 cut-off events. For 75519/75592 co-relation queries the response was YES. Maximal size of possible extension queue 912. Compared 292432 event pairs, 7397 based on Foata normal form. 0/32290 useless extension candidates. Maximal degree in co-relation 108121. Up to 17480 conditions per place. [2022-11-02 21:07:23,331 INFO L137 encePairwiseOnDemand]: 93/99 looper letters, 745 selfloop transitions, 5 changer transitions 172/975 dead transitions. [2022-11-02 21:07:23,331 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 975 transitions, 9770 flow [2022-11-02 21:07:23,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:07:23,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:07:23,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 455 transitions. [2022-11-02 21:07:23,338 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.765993265993266 [2022-11-02 21:07:23,338 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 455 transitions. [2022-11-02 21:07:23,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 455 transitions. [2022-11-02 21:07:23,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:07:23,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 455 transitions. [2022-11-02 21:07:23,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 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 21:07:23,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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 21:07:23,348 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 99.0) internal successors, (693), 7 states have internal predecessors, (693), 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 21:07:23,348 INFO L175 Difference]: Start difference. First operand has 131 places, 256 transitions, 1740 flow. Second operand 6 states and 455 transitions. [2022-11-02 21:07:23,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 975 transitions, 9770 flow [2022-11-02 21:07:23,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 975 transitions, 9690 flow, removed 40 selfloop flow, removed 0 redundant places. [2022-11-02 21:07:23,775 INFO L231 Difference]: Finished difference. Result has 135 places, 219 transitions, 1436 flow [2022-11-02 21:07:23,776 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=1722, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1436, PETRI_PLACES=135, PETRI_TRANSITIONS=219} [2022-11-02 21:07:23,776 INFO L287 CegarLoopForPetriNet]: 104 programPoint places, 31 predicate places. [2022-11-02 21:07:23,777 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 219 transitions, 1436 flow [2022-11-02 21:07:23,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.166666666666664) internal successors, (313), 6 states have internal predecessors, (313), 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 21:07:23,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:07:23,777 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:23,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:07:23,778 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 7 more)] === [2022-11-02 21:07:23,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:23,778 INFO L85 PathProgramCache]: Analyzing trace with hash 118850398, now seen corresponding path program 1 times [2022-11-02 21:07:23,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:23,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926068713] [2022-11-02 21:07:23,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:23,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:07:23,798 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:07:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:07:23,830 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:07:23,831 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 21:07:23,832 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 10 remaining) [2022-11-02 21:07:23,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2022-11-02 21:07:23,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2022-11-02 21:07:23,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 10 remaining) [2022-11-02 21:07:23,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-11-02 21:07:23,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2022-11-02 21:07:23,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2022-11-02 21:07:23,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2022-11-02 21:07:23,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2022-11-02 21:07:23,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2022-11-02 21:07:23,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:07:23,836 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-02 21:07:23,843 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 21:07:23,843 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 21:07:23,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:07:23 BasicIcfg [2022-11-02 21:07:23,904 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 21:07:23,904 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:07:23,904 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:07:23,905 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:07:23,905 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:06:57" (3/4) ... [2022-11-02 21:07:23,908 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 21:07:23,908 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:07:23,910 INFO L158 Benchmark]: Toolchain (without parser) took 27719.52ms. Allocated memory was 96.5MB in the beginning and 6.9GB in the end (delta: 6.8GB). Free memory was 55.0MB in the beginning and 5.8GB in the end (delta: -5.7GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2022-11-02 21:07:23,911 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory was 72.9MB in the beginning and 72.8MB in the end (delta: 99.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:07:23,913 INFO L158 Benchmark]: CACSL2BoogieTranslator took 624.94ms. Allocated memory is still 96.5MB. Free memory was 54.8MB in the beginning and 64.7MB in the end (delta: -9.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 21:07:23,914 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.13ms. Allocated memory is still 96.5MB. Free memory was 64.7MB in the beginning and 62.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:07:23,919 INFO L158 Benchmark]: Boogie Preprocessor took 30.65ms. Allocated memory is still 96.5MB. Free memory was 62.5MB in the beginning and 60.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:07:23,922 INFO L158 Benchmark]: RCFGBuilder took 395.72ms. Allocated memory is still 96.5MB. Free memory was 60.9MB in the beginning and 47.3MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-02 21:07:23,923 INFO L158 Benchmark]: TraceAbstraction took 26610.98ms. Allocated memory was 96.5MB in the beginning and 6.9GB in the end (delta: 6.8GB). Free memory was 46.6MB in the beginning and 5.8GB in the end (delta: -5.7GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2022-11-02 21:07:23,923 INFO L158 Benchmark]: Witness Printer took 3.61ms. Allocated memory is still 6.9GB. Free memory is still 5.8GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:07:23,925 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory was 72.9MB in the beginning and 72.8MB in the end (delta: 99.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 624.94ms. Allocated memory is still 96.5MB. Free memory was 54.8MB in the beginning and 64.7MB in the end (delta: -9.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.13ms. Allocated memory is still 96.5MB. Free memory was 64.7MB in the beginning and 62.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.65ms. Allocated memory is still 96.5MB. Free memory was 62.5MB in the beginning and 60.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 395.72ms. Allocated memory is still 96.5MB. Free memory was 60.9MB in the beginning and 47.3MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 26610.98ms. Allocated memory was 96.5MB in the beginning and 6.9GB in the end (delta: 6.8GB). Free memory was 46.6MB in the beginning and 5.8GB in the end (delta: -5.7GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 3.61ms. Allocated memory is still 6.9GB. Free memory is still 5.8GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 684]: Data race detected Data race detected The following path leads to a data race: [L679-L682] 0 struct { int x; int y; } data; VAL [data={1:0}] [L688] 0 pthread_t id, id2; VAL [data={1:0}, id={6:0}, id={5:0}] [L689] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, id={5:0}, id={6:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L690] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, id={5:0}, id={6:0}, pthread_create(&id2, ((void *)0), t_fun, ((void *)0))=0] [L684] 2 data.x VAL [arg={0:0}, arg={0:0}, data={1:0}, data.x=0] [L684] EXPR 1 data.x VAL [arg={0:0}, arg={0:0}, data={1:0}, data.x=0] [L684] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data.x=0, data.x++=0data.x++=9] Now there is a data race (on the heap) between C: data.x++ [684] and C: data.x++ [684] - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 684]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 125 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 26.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 23.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 263 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 263 mSDsluCounter, 195 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 344 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1574 IncrementalHoareTripleChecker+Invalid, 1918 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 344 mSolverCounterUnsat, 195 mSDtfsCounter, 1574 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1740occurred in iteration=4, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 211 NumberOfCodeBlocks, 211 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 585 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-02 21:07:23,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c14978fd-d591-458e-a97d-7d34d0d05fb0/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE