./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_02-simple_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42939a3c-0cc0-4e7b-ac0b-f919c69706d3/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42939a3c-0cc0-4e7b-ac0b-f919c69706d3/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42939a3c-0cc0-4e7b-ac0b-f919c69706d3/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42939a3c-0cc0-4e7b-ac0b-f919c69706d3/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_02-simple_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42939a3c-0cc0-4e7b-ac0b-f919c69706d3/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42939a3c-0cc0-4e7b-ac0b-f919c69706d3/bin/uautomizer-tPACEb0tL8 --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 d425dfbbfb78faa29f27010b68bbdf8cfe9cd77f6a5b55b60367dae1036de9f1 --- 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-e04fb08 [2022-11-16 11:07:59,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:07:59,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:07:59,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:07:59,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:07:59,814 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:07:59,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:07:59,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:07:59,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:07:59,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:07:59,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:07:59,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:07:59,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:07:59,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:07:59,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:07:59,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:07:59,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:07:59,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:07:59,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:07:59,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:07:59,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:07:59,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:07:59,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:07:59,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:07:59,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:07:59,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:07:59,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:07:59,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:07:59,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:07:59,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:07:59,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:07:59,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:07:59,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:07:59,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:07:59,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:07:59,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:07:59,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:07:59,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:07:59,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:07:59,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:07:59,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:07:59,889 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42939a3c-0cc0-4e7b-ac0b-f919c69706d3/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:07:59,922 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:07:59,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:07:59,922 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:07:59,923 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:07:59,923 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:07:59,923 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:07:59,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:07:59,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:07:59,925 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:07:59,925 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:07:59,925 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:07:59,925 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:07:59,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:07:59,926 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:07:59,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:07:59,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:07:59,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:07:59,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:07:59,927 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:07:59,927 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:07:59,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:07:59,928 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:07:59,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:07:59,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:07:59,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:07:59,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:07:59,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:07:59,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:07:59,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:07:59,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:07:59,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:07:59,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:07:59,930 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:07:59,930 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:07:59,930 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:07:59,931 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_42939a3c-0cc0-4e7b-ac0b-f919c69706d3/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42939a3c-0cc0-4e7b-ac0b-f919c69706d3/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d425dfbbfb78faa29f27010b68bbdf8cfe9cd77f6a5b55b60367dae1036de9f1 [2022-11-16 11:08:00,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:08:00,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:08:00,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:08:00,225 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:08:00,226 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:08:00,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42939a3c-0cc0-4e7b-ac0b-f919c69706d3/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/04-mutex_02-simple_nr.i [2022-11-16 11:08:00,325 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42939a3c-0cc0-4e7b-ac0b-f919c69706d3/bin/uautomizer-tPACEb0tL8/data/421bf8e7a/bdd719e4eeaa4560a298875f2361acd5/FLAG3333049d5 [2022-11-16 11:08:00,974 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:08:00,974 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42939a3c-0cc0-4e7b-ac0b-f919c69706d3/sv-benchmarks/c/goblint-regression/04-mutex_02-simple_nr.i [2022-11-16 11:08:00,989 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42939a3c-0cc0-4e7b-ac0b-f919c69706d3/bin/uautomizer-tPACEb0tL8/data/421bf8e7a/bdd719e4eeaa4560a298875f2361acd5/FLAG3333049d5 [2022-11-16 11:08:01,213 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42939a3c-0cc0-4e7b-ac0b-f919c69706d3/bin/uautomizer-tPACEb0tL8/data/421bf8e7a/bdd719e4eeaa4560a298875f2361acd5 [2022-11-16 11:08:01,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:08:01,217 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:08:01,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:08:01,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:08:01,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:08:01,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:08:01" (1/1) ... [2022-11-16 11:08:01,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4be0b0a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:01, skipping insertion in model container [2022-11-16 11:08:01,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:08:01" (1/1) ... [2022-11-16 11:08:01,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:08:01,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:08:01,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:08:01,911 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:08:01,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:08:02,018 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:08:02,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:02 WrapperNode [2022-11-16 11:08:02,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:08:02,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:08:02,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:08:02,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:08:02,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:02" (1/1) ... [2022-11-16 11:08:02,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:02" (1/1) ... [2022-11-16 11:08:02,085 INFO L138 Inliner]: procedures = 262, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2022-11-16 11:08:02,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:08:02,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:08:02,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:08:02,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:08:02,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:02" (1/1) ... [2022-11-16 11:08:02,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:02" (1/1) ... [2022-11-16 11:08:02,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:02" (1/1) ... [2022-11-16 11:08:02,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:02" (1/1) ... [2022-11-16 11:08:02,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:02" (1/1) ... [2022-11-16 11:08:02,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:02" (1/1) ... [2022-11-16 11:08:02,119 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:02" (1/1) ... [2022-11-16 11:08:02,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:02" (1/1) ... [2022-11-16 11:08:02,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:08:02,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:08:02,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:08:02,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:08:02,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:02" (1/1) ... [2022-11-16 11:08:02,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:08:02,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42939a3c-0cc0-4e7b-ac0b-f919c69706d3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:02,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42939a3c-0cc0-4e7b-ac0b-f919c69706d3/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:02,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42939a3c-0cc0-4e7b-ac0b-f919c69706d3/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:08:02,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:08:02,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:08:02,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:08:02,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:08:02,225 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:08:02,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:08:02,225 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 11:08:02,225 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 11:08:02,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:08:02,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:08:02,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:08:02,227 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:08:02,453 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:08:02,455 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:08:02,683 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:08:02,690 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:08:02,690 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:08:02,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:08:02 BoogieIcfgContainer [2022-11-16 11:08:02,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:08:02,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:08:02,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:08:02,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:08:02,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:08:01" (1/3) ... [2022-11-16 11:08:02,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5717e5db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:08:02, skipping insertion in model container [2022-11-16 11:08:02,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:02" (2/3) ... [2022-11-16 11:08:02,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5717e5db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:08:02, skipping insertion in model container [2022-11-16 11:08:02,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:08:02" (3/3) ... [2022-11-16 11:08:02,705 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_02-simple_nr.i [2022-11-16 11:08:02,714 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:08:02,725 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:08:02,725 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-11-16 11:08:02,725 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:08:02,818 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 11:08:02,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 75 transitions, 158 flow [2022-11-16 11:08:02,939 INFO L130 PetriNetUnfolder]: 0/74 cut-off events. [2022-11-16 11:08:02,940 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:08:02,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 74 events. 0/74 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-16 11:08:02,943 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 75 transitions, 158 flow [2022-11-16 11:08:02,948 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 66 transitions, 135 flow [2022-11-16 11:08:02,965 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:08:02,973 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;@1b21ae1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:08:02,973 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-16 11:08:03,000 INFO L130 PetriNetUnfolder]: 0/39 cut-off events. [2022-11-16 11:08:03,000 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:08:03,001 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:03,001 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:03,002 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 11:08:03,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:03,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1874110961, now seen corresponding path program 1 times [2022-11-16 11:08:03,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:03,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340850248] [2022-11-16 11:08:03,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:03,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:03,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:03,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:03,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340850248] [2022-11-16 11:08:03,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340850248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:03,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:03,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:08:03,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855798640] [2022-11-16 11:08:03,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:03,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:03,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:03,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:03,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:03,426 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 75 [2022-11-16 11:08:03,430 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 66 transitions, 135 flow. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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) [2022-11-16 11:08:03,430 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:03,430 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 75 [2022-11-16 11:08:03,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:03,576 INFO L130 PetriNetUnfolder]: 37/217 cut-off events. [2022-11-16 11:08:03,576 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:08:03,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 217 events. 37/217 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 854 event pairs, 15 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 277. Up to 54 conditions per place. [2022-11-16 11:08:03,581 INFO L137 encePairwiseOnDemand]: 67/75 looper letters, 17 selfloop transitions, 6 changer transitions 0/76 dead transitions. [2022-11-16 11:08:03,581 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 76 transitions, 201 flow [2022-11-16 11:08:03,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:03,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:08:03,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2022-11-16 11:08:03,605 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9244444444444444 [2022-11-16 11:08:03,606 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 208 transitions. [2022-11-16 11:08:03,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 208 transitions. [2022-11-16 11:08:03,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:03,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 208 transitions. [2022-11-16 11:08:03,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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) [2022-11-16 11:08:03,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2022-11-16 11:08:03,619 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2022-11-16 11:08:03,622 INFO L175 Difference]: Start difference. First operand has 70 places, 66 transitions, 135 flow. Second operand 3 states and 208 transitions. [2022-11-16 11:08:03,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 76 transitions, 201 flow [2022-11-16 11:08:03,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 76 transitions, 200 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:08:03,629 INFO L231 Difference]: Finished difference. Result has 73 places, 72 transitions, 186 flow [2022-11-16 11:08:03,632 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=73, PETRI_TRANSITIONS=72} [2022-11-16 11:08:03,636 INFO L288 CegarLoopForPetriNet]: 70 programPoint places, 3 predicate places. [2022-11-16 11:08:03,636 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 72 transitions, 186 flow [2022-11-16 11:08:03,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 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) [2022-11-16 11:08:03,637 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:03,637 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:03,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:08:03,638 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 11:08:03,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:03,638 INFO L85 PathProgramCache]: Analyzing trace with hash -791434252, now seen corresponding path program 1 times [2022-11-16 11:08:03,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:03,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129957777] [2022-11-16 11:08:03,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:03,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:03,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:03,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:03,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129957777] [2022-11-16 11:08:03,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129957777] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:03,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:03,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:08:03,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728923681] [2022-11-16 11:08:03,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:03,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:03,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:03,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:03,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:03,786 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 75 [2022-11-16 11:08:03,786 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 72 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2022-11-16 11:08:03,786 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:03,786 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 75 [2022-11-16 11:08:03,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:03,931 INFO L130 PetriNetUnfolder]: 55/293 cut-off events. [2022-11-16 11:08:03,931 INFO L131 PetriNetUnfolder]: For 84/86 co-relation queries the response was YES. [2022-11-16 11:08:03,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 293 events. 55/293 cut-off events. For 84/86 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1403 event pairs, 23 based on Foata normal form. 2/265 useless extension candidates. Maximal degree in co-relation 486. Up to 102 conditions per place. [2022-11-16 11:08:03,935 INFO L137 encePairwiseOnDemand]: 69/75 looper letters, 24 selfloop transitions, 7 changer transitions 0/82 dead transitions. [2022-11-16 11:08:03,935 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 82 transitions, 286 flow [2022-11-16 11:08:03,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:03,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:08:03,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2022-11-16 11:08:03,937 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8933333333333333 [2022-11-16 11:08:03,937 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 201 transitions. [2022-11-16 11:08:03,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 201 transitions. [2022-11-16 11:08:03,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:03,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 201 transitions. [2022-11-16 11:08:03,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2022-11-16 11:08:03,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2022-11-16 11:08:03,941 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2022-11-16 11:08:03,941 INFO L175 Difference]: Start difference. First operand has 73 places, 72 transitions, 186 flow. Second operand 3 states and 201 transitions. [2022-11-16 11:08:03,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 82 transitions, 286 flow [2022-11-16 11:08:03,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 82 transitions, 268 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:08:03,945 INFO L231 Difference]: Finished difference. Result has 75 places, 77 transitions, 230 flow [2022-11-16 11:08:03,945 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=75, PETRI_TRANSITIONS=77} [2022-11-16 11:08:03,946 INFO L288 CegarLoopForPetriNet]: 70 programPoint places, 5 predicate places. [2022-11-16 11:08:03,946 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 77 transitions, 230 flow [2022-11-16 11:08:03,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2022-11-16 11:08:03,947 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:03,947 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:03,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:08:03,948 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 11:08:03,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:03,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1503563965, now seen corresponding path program 1 times [2022-11-16 11:08:03,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:03,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533253006] [2022-11-16 11:08:03,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:03,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:03,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:04,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:04,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:04,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533253006] [2022-11-16 11:08:04,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533253006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:04,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:04,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:08:04,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455900856] [2022-11-16 11:08:04,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:04,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:04,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:04,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:04,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:04,012 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 75 [2022-11-16 11:08:04,018 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 77 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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) [2022-11-16 11:08:04,018 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:04,018 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 75 [2022-11-16 11:08:04,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:04,110 INFO L130 PetriNetUnfolder]: 57/273 cut-off events. [2022-11-16 11:08:04,110 INFO L131 PetriNetUnfolder]: For 129/129 co-relation queries the response was YES. [2022-11-16 11:08:04,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 584 conditions, 273 events. 57/273 cut-off events. For 129/129 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1255 event pairs, 17 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 545. Up to 101 conditions per place. [2022-11-16 11:08:04,113 INFO L137 encePairwiseOnDemand]: 69/75 looper letters, 28 selfloop transitions, 9 changer transitions 0/88 dead transitions. [2022-11-16 11:08:04,113 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 88 transitions, 354 flow [2022-11-16 11:08:04,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:04,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:08:04,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 199 transitions. [2022-11-16 11:08:04,115 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8844444444444445 [2022-11-16 11:08:04,115 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 199 transitions. [2022-11-16 11:08:04,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 199 transitions. [2022-11-16 11:08:04,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:04,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 199 transitions. [2022-11-16 11:08:04,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2022-11-16 11:08:04,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2022-11-16 11:08:04,118 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2022-11-16 11:08:04,118 INFO L175 Difference]: Start difference. First operand has 75 places, 77 transitions, 230 flow. Second operand 3 states and 199 transitions. [2022-11-16 11:08:04,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 88 transitions, 354 flow [2022-11-16 11:08:04,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 88 transitions, 334 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:08:04,123 INFO L231 Difference]: Finished difference. Result has 77 places, 82 transitions, 284 flow [2022-11-16 11:08:04,123 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=77, PETRI_TRANSITIONS=82} [2022-11-16 11:08:04,124 INFO L288 CegarLoopForPetriNet]: 70 programPoint places, 7 predicate places. [2022-11-16 11:08:04,124 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 82 transitions, 284 flow [2022-11-16 11:08:04,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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) [2022-11-16 11:08:04,125 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:04,125 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:04,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:08:04,125 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 11:08:04,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:04,126 INFO L85 PathProgramCache]: Analyzing trace with hash -219374715, now seen corresponding path program 1 times [2022-11-16 11:08:04,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:04,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120893766] [2022-11-16 11:08:04,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:04,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:04,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:04,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:04,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120893766] [2022-11-16 11:08:04,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120893766] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:04,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:04,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:08:04,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761792148] [2022-11-16 11:08:04,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:04,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:04,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:04,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:04,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:04,321 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 75 [2022-11-16 11:08:04,321 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 82 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2022-11-16 11:08:04,322 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:04,322 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 75 [2022-11-16 11:08:04,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:04,360 INFO L130 PetriNetUnfolder]: 1/84 cut-off events. [2022-11-16 11:08:04,361 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-16 11:08:04,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 84 events. 1/84 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 1 based on Foata normal form. 2/85 useless extension candidates. Maximal degree in co-relation 98. Up to 12 conditions per place. [2022-11-16 11:08:04,362 INFO L137 encePairwiseOnDemand]: 71/75 looper letters, 7 selfloop transitions, 4 changer transitions 1/62 dead transitions. [2022-11-16 11:08:04,362 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 62 transitions, 184 flow [2022-11-16 11:08:04,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:04,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:08:04,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2022-11-16 11:08:04,365 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8977777777777778 [2022-11-16 11:08:04,365 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 202 transitions. [2022-11-16 11:08:04,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 202 transitions. [2022-11-16 11:08:04,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:04,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 202 transitions. [2022-11-16 11:08:04,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2022-11-16 11:08:04,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2022-11-16 11:08:04,370 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2022-11-16 11:08:04,371 INFO L175 Difference]: Start difference. First operand has 77 places, 82 transitions, 284 flow. Second operand 3 states and 202 transitions. [2022-11-16 11:08:04,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 62 transitions, 184 flow [2022-11-16 11:08:04,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 62 transitions, 148 flow, removed 8 selfloop flow, removed 8 redundant places. [2022-11-16 11:08:04,380 INFO L231 Difference]: Finished difference. Result has 67 places, 61 transitions, 132 flow [2022-11-16 11:08:04,382 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=67, PETRI_TRANSITIONS=61} [2022-11-16 11:08:04,384 INFO L288 CegarLoopForPetriNet]: 70 programPoint places, -3 predicate places. [2022-11-16 11:08:04,385 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 61 transitions, 132 flow [2022-11-16 11:08:04,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2022-11-16 11:08:04,386 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:04,386 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:04,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:08:04,390 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-16 11:08:04,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:04,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1724652263, now seen corresponding path program 1 times [2022-11-16 11:08:04,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:04,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857277064] [2022-11-16 11:08:04,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:04,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:04,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:04,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:04,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857277064] [2022-11-16 11:08:04,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857277064] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:04,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:04,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:08:04,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406610946] [2022-11-16 11:08:04,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:04,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:04,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:04,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:04,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:04,958 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 75 [2022-11-16 11:08:04,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 61 transitions, 132 flow. Second operand has 6 states, 6 states have (on average 62.666666666666664) internal successors, (376), 6 states have internal predecessors, (376), 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) [2022-11-16 11:08:04,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:04,959 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 75 [2022-11-16 11:08:04,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:04,993 INFO L130 PetriNetUnfolder]: 1/82 cut-off events. [2022-11-16 11:08:04,994 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:08:04,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 82 events. 1/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 1 based on Foata normal form. 1/83 useless extension candidates. Maximal degree in co-relation 65. Up to 6 conditions per place. [2022-11-16 11:08:04,994 INFO L137 encePairwiseOnDemand]: 70/75 looper letters, 0 selfloop transitions, 0 changer transitions 60/60 dead transitions. [2022-11-16 11:08:04,994 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 60 transitions, 148 flow [2022-11-16 11:08:04,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:04,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:08:04,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 376 transitions. [2022-11-16 11:08:04,997 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8355555555555556 [2022-11-16 11:08:04,997 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 376 transitions. [2022-11-16 11:08:04,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 376 transitions. [2022-11-16 11:08:04,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:04,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 376 transitions. [2022-11-16 11:08:04,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 62.666666666666664) internal successors, (376), 6 states have internal predecessors, (376), 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) [2022-11-16 11:08:05,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 75.0) internal successors, (525), 7 states have internal predecessors, (525), 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) [2022-11-16 11:08:05,001 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 75.0) internal successors, (525), 7 states have internal predecessors, (525), 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) [2022-11-16 11:08:05,001 INFO L175 Difference]: Start difference. First operand has 67 places, 61 transitions, 132 flow. Second operand 6 states and 376 transitions. [2022-11-16 11:08:05,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 60 transitions, 148 flow [2022-11-16 11:08:05,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 60 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:08:05,002 INFO L231 Difference]: Finished difference. Result has 69 places, 0 transitions, 0 flow [2022-11-16 11:08:05,003 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=69, PETRI_TRANSITIONS=0} [2022-11-16 11:08:05,003 INFO L288 CegarLoopForPetriNet]: 70 programPoint places, -1 predicate places. [2022-11-16 11:08:05,004 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 0 transitions, 0 flow [2022-11-16 11:08:05,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.666666666666664) internal successors, (376), 6 states have internal predecessors, (376), 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) [2022-11-16 11:08:05,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2022-11-16 11:08:05,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2022-11-16 11:08:05,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2022-11-16 11:08:05,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2022-11-16 11:08:05,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2022-11-16 11:08:05,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2022-11-16 11:08:05,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2022-11-16 11:08:05,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2022-11-16 11:08:05,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:08:05,009 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-16 11:08:05,015 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:08:05,015 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:08:05,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:08:05 BasicIcfg [2022-11-16 11:08:05,020 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:08:05,021 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:08:05,021 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:08:05,021 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:08:05,022 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:08:02" (3/4) ... [2022-11-16 11:08:05,025 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:08:05,031 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-16 11:08:05,035 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-16 11:08:05,035 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 11:08:05,035 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 11:08:05,066 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42939a3c-0cc0-4e7b-ac0b-f919c69706d3/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:08:05,066 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:08:05,067 INFO L158 Benchmark]: Toolchain (without parser) took 3850.49ms. Allocated memory was 119.5MB in the beginning and 155.2MB in the end (delta: 35.7MB). Free memory was 83.4MB in the beginning and 70.1MB in the end (delta: 13.3MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2022-11-16 11:08:05,068 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory was 57.4MB in the beginning and 57.4MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:08:05,068 INFO L158 Benchmark]: CACSL2BoogieTranslator took 796.51ms. Allocated memory is still 119.5MB. Free memory was 83.4MB in the beginning and 78.1MB in the end (delta: 5.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:08:05,068 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.22ms. Allocated memory is still 119.5MB. Free memory was 78.1MB in the beginning and 75.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:08:05,069 INFO L158 Benchmark]: Boogie Preprocessor took 48.91ms. Allocated memory is still 119.5MB. Free memory was 75.4MB in the beginning and 74.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:08:05,069 INFO L158 Benchmark]: RCFGBuilder took 556.06ms. Allocated memory is still 119.5MB. Free memory was 74.3MB in the beginning and 60.7MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 11:08:05,069 INFO L158 Benchmark]: TraceAbstraction took 2326.16ms. Allocated memory was 119.5MB in the beginning and 155.2MB in the end (delta: 35.7MB). Free memory was 60.2MB in the beginning and 73.3MB in the end (delta: -13.1MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2022-11-16 11:08:05,070 INFO L158 Benchmark]: Witness Printer took 45.54ms. Allocated memory is still 155.2MB. Free memory was 73.3MB in the beginning and 70.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:08:05,072 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory was 57.4MB in the beginning and 57.4MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 796.51ms. Allocated memory is still 119.5MB. Free memory was 83.4MB in the beginning and 78.1MB in the end (delta: 5.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.22ms. Allocated memory is still 119.5MB. Free memory was 78.1MB in the beginning and 75.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.91ms. Allocated memory is still 119.5MB. Free memory was 75.4MB in the beginning and 74.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 556.06ms. Allocated memory is still 119.5MB. Free memory was 74.3MB in the beginning and 60.7MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2326.16ms. Allocated memory was 119.5MB in the beginning and 155.2MB in the end (delta: 35.7MB). Free memory was 60.2MB in the beginning and 73.3MB in the end (delta: -13.1MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * Witness Printer took 45.54ms. Allocated memory is still 155.2MB. Free memory was 73.3MB in the beginning and 70.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 930]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 930]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 932]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 922]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 922]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 93 locations, 8 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: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 54 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=284occurred in iteration=3, InterpolantAutomatonStates: 18, 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, 1.0s InterpolantComputationTime, 206 NumberOfCodeBlocks, 206 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 201 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 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 - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 11:08:05,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42939a3c-0cc0-4e7b-ac0b-f919c69706d3/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE