./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_626b4bb0-8ff9-4dae-a24b-5bd0c136e94f/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626b4bb0-8ff9-4dae-a24b-5bd0c136e94f/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626b4bb0-8ff9-4dae-a24b-5bd0c136e94f/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626b4bb0-8ff9-4dae-a24b-5bd0c136e94f/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626b4bb0-8ff9-4dae-a24b-5bd0c136e94f/bin/utaipan-Xvt2sAort0/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626b4bb0-8ff9-4dae-a24b-5bd0c136e94f/bin/utaipan-Xvt2sAort0 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 --- 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 16:14:01,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:14:01,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:14:01,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:14:01,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:14:01,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:14:01,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:14:01,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:14:01,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:14:01,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:14:01,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:14:01,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:14:01,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:14:01,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:14:01,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:14:01,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:14:01,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:14:01,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:14:01,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:14:01,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:14:01,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:14:01,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:14:01,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:14:01,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:14:01,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:14:01,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:14:01,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:14:01,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:14:01,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:14:01,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:14:01,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:14:01,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:14:01,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:14:01,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:14:01,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:14:01,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:14:01,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:14:01,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:14:01,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:14:01,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:14:01,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:14:01,227 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626b4bb0-8ff9-4dae-a24b-5bd0c136e94f/bin/utaipan-Xvt2sAort0/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-16 16:14:01,278 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:14:01,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:14:01,279 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:14:01,279 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:14:01,280 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:14:01,280 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:14:01,281 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:14:01,281 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:14:01,281 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:14:01,281 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:14:01,282 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:14:01,283 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:14:01,283 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:14:01,283 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:14:01,283 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:14:01,284 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:14:01,284 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:14:01,284 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:14:01,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:14:01,285 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 16:14:01,285 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 16:14:01,285 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:14:01,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 16:14:01,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:14:01,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:14:01,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:14:01,286 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:14:01,287 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 16:14:01,287 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 16:14:01,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:14:01,288 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:14:01,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:14:01,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:14:01,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:14:01,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:14:01,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:14:01,289 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:14:01,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:14:01,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:14:01,290 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:14:01,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:14:01,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:14:01,291 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:14:01,291 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_626b4bb0-8ff9-4dae-a24b-5bd0c136e94f/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626b4bb0-8ff9-4dae-a24b-5bd0c136e94f/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 [2022-11-16 16:14:01,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:14:01,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:14:01,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:14:01,595 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:14:01,596 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:14:01,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626b4bb0-8ff9-4dae-a24b-5bd0c136e94f/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2022-11-16 16:14:01,666 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626b4bb0-8ff9-4dae-a24b-5bd0c136e94f/bin/utaipan-Xvt2sAort0/data/41ee2db72/f65d7284851f47e3a9ed8e3aef956ce4/FLAGe27f39e9f [2022-11-16 16:14:02,397 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:14:02,397 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626b4bb0-8ff9-4dae-a24b-5bd0c136e94f/sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2022-11-16 16:14:02,420 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626b4bb0-8ff9-4dae-a24b-5bd0c136e94f/bin/utaipan-Xvt2sAort0/data/41ee2db72/f65d7284851f47e3a9ed8e3aef956ce4/FLAGe27f39e9f [2022-11-16 16:14:02,559 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626b4bb0-8ff9-4dae-a24b-5bd0c136e94f/bin/utaipan-Xvt2sAort0/data/41ee2db72/f65d7284851f47e3a9ed8e3aef956ce4 [2022-11-16 16:14:02,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:14:02,564 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:14:02,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:14:02,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:14:02,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:14:02,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:14:02" (1/1) ... [2022-11-16 16:14:02,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31a50368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:02, skipping insertion in model container [2022-11-16 16:14:02,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:14:02" (1/1) ... [2022-11-16 16:14:02,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:14:02,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:14:03,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:14:03,926 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:14:03,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:14:04,133 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:14:04,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:04 WrapperNode [2022-11-16 16:14:04,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:14:04,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:14:04,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:14:04,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:14:04,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:04" (1/1) ... [2022-11-16 16:14:04,180 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:04" (1/1) ... [2022-11-16 16:14:04,208 INFO L138 Inliner]: procedures = 524, calls = 61, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 139 [2022-11-16 16:14:04,209 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:14:04,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:14:04,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:14:04,210 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:14:04,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:04" (1/1) ... [2022-11-16 16:14:04,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:04" (1/1) ... [2022-11-16 16:14:04,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:04" (1/1) ... [2022-11-16 16:14:04,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:04" (1/1) ... [2022-11-16 16:14:04,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:04" (1/1) ... [2022-11-16 16:14:04,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:04" (1/1) ... [2022-11-16 16:14:04,254 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:04" (1/1) ... [2022-11-16 16:14:04,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:04" (1/1) ... [2022-11-16 16:14:04,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:14:04,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:14:04,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:14:04,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:14:04,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:04" (1/1) ... [2022-11-16 16:14:04,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:14:04,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626b4bb0-8ff9-4dae-a24b-5bd0c136e94f/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:14:04,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626b4bb0-8ff9-4dae-a24b-5bd0c136e94f/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:14:04,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626b4bb0-8ff9-4dae-a24b-5bd0c136e94f/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:14:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2022-11-16 16:14:04,359 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2022-11-16 16:14:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-16 16:14:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2022-11-16 16:14:04,360 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2022-11-16 16:14:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2022-11-16 16:14:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 16:14:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 16:14:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 16:14:04,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:14:04,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:14:04,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:14:04,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 16:14:04,361 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-11-16 16:14:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-16 16:14:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 16:14:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:14:04,365 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 16:14:04,774 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:14:04,776 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:14:05,230 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:14:05,245 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:14:05,249 INFO L300 CfgBuilder]: Removed 19 assume(true) statements. [2022-11-16 16:14:05,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:14:05 BoogieIcfgContainer [2022-11-16 16:14:05,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:14:05,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:14:05,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:14:05,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:14:05,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:14:02" (1/3) ... [2022-11-16 16:14:05,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad130a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:14:05, skipping insertion in model container [2022-11-16 16:14:05,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:14:04" (2/3) ... [2022-11-16 16:14:05,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad130a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:14:05, skipping insertion in model container [2022-11-16 16:14:05,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:14:05" (3/3) ... [2022-11-16 16:14:05,263 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_35-trylock_rc.i [2022-11-16 16:14:05,272 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 16:14:05,282 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:14:05,283 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-16 16:14:05,283 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 16:14:05,376 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 16:14:05,411 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 16:14:05,426 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 254 places, 278 transitions, 572 flow [2022-11-16 16:14:05,428 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 254 places, 278 transitions, 572 flow [2022-11-16 16:14:05,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 278 transitions, 572 flow [2022-11-16 16:14:05,557 INFO L130 PetriNetUnfolder]: 31/276 cut-off events. [2022-11-16 16:14:05,558 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 16:14:05,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 276 events. 31/276 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 660 event pairs, 0 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 173. Up to 5 conditions per place. [2022-11-16 16:14:05,581 INFO L119 LiptonReduction]: Number of co-enabled transitions 19072 [2022-11-16 16:14:23,350 INFO L134 LiptonReduction]: Checked pairs total: 36829 [2022-11-16 16:14:23,350 INFO L136 LiptonReduction]: Total number of compositions: 299 [2022-11-16 16:14:23,359 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 81 transitions, 178 flow [2022-11-16 16:14:23,499 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2234 states, 2087 states have (on average 3.9813128893148058) internal successors, (8309), 2233 states have internal predecessors, (8309), 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 16:14:23,524 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:14:23,535 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1bd875e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:14:23,536 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-16 16:14:23,546 INFO L276 IsEmpty]: Start isEmpty. Operand has 2234 states, 2087 states have (on average 3.9813128893148058) internal successors, (8309), 2233 states have internal predecessors, (8309), 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 16:14:23,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-16 16:14:23,551 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:23,552 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-16 16:14:23,552 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 16:14:23,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:23,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1144, now seen corresponding path program 1 times [2022-11-16 16:14:23,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:23,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832200831] [2022-11-16 16:14:23,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:23,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:14:23,745 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 16:14:23,745 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:23,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832200831] [2022-11-16 16:14:23,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832200831] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:14:23,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:14:23,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-16 16:14:23,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357420603] [2022-11-16 16:14:23,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:14:23,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 16:14:23,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:23,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 16:14:23,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 16:14:23,796 INFO L87 Difference]: Start difference. First operand has 2234 states, 2087 states have (on average 3.9813128893148058) internal successors, (8309), 2233 states have internal predecessors, (8309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 16:14:23,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:23,917 INFO L93 Difference]: Finished difference Result 1063 states and 3038 transitions. [2022-11-16 16:14:23,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 16:14:23,919 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-16 16:14:23,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:23,942 INFO L225 Difference]: With dead ends: 1063 [2022-11-16 16:14:23,943 INFO L226 Difference]: Without dead ends: 1057 [2022-11-16 16:14:23,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 16:14:23,946 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:23,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:14:23,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-16 16:14:24,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 1057. [2022-11-16 16:14:24,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 1009 states have (on average 2.9980178394449952) internal successors, (3025), 1056 states have internal predecessors, (3025), 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 16:14:24,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 3025 transitions. [2022-11-16 16:14:24,041 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 3025 transitions. Word has length 1 [2022-11-16 16:14:24,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:24,041 INFO L495 AbstractCegarLoop]: Abstraction has 1057 states and 3025 transitions. [2022-11-16 16:14:24,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 16:14:24,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 3025 transitions. [2022-11-16 16:14:24,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 16:14:24,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:24,042 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 16:14:24,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 16:14:24,043 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 16:14:24,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:24,044 INFO L85 PathProgramCache]: Analyzing trace with hash -854656500, now seen corresponding path program 1 times [2022-11-16 16:14:24,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:24,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484163943] [2022-11-16 16:14:24,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:24,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:14:24,529 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 16:14:24,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:24,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484163943] [2022-11-16 16:14:24,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484163943] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:14:24,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:14:24,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:14:24,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267643012] [2022-11-16 16:14:24,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:14:24,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:14:24,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:24,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:14:24,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:24,533 INFO L87 Difference]: Start difference. First operand 1057 states and 3025 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 16:14:24,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:24,692 INFO L93 Difference]: Finished difference Result 865 states and 2421 transitions. [2022-11-16 16:14:24,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:14:24,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-16 16:14:24,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:24,701 INFO L225 Difference]: With dead ends: 865 [2022-11-16 16:14:24,701 INFO L226 Difference]: Without dead ends: 865 [2022-11-16 16:14:24,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:24,704 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 31 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:24,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 36 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:14:24,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2022-11-16 16:14:24,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2022-11-16 16:14:24,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 832 states have (on average 2.909855769230769) internal successors, (2421), 864 states have internal predecessors, (2421), 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 16:14:24,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 2421 transitions. [2022-11-16 16:14:24,740 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 2421 transitions. Word has length 6 [2022-11-16 16:14:24,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:24,742 INFO L495 AbstractCegarLoop]: Abstraction has 865 states and 2421 transitions. [2022-11-16 16:14:24,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 16:14:24,743 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 2421 transitions. [2022-11-16 16:14:24,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 16:14:24,744 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:24,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:14:24,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 16:14:24,745 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting counter_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 16:14:24,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:24,746 INFO L85 PathProgramCache]: Analyzing trace with hash -769339962, now seen corresponding path program 1 times [2022-11-16 16:14:24,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:24,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124651456] [2022-11-16 16:14:24,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:24,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:14:24,866 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 16:14:24,867 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:24,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124651456] [2022-11-16 16:14:24,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124651456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:14:24,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:14:24,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:14:24,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630345670] [2022-11-16 16:14:24,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:14:24,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:14:24,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:24,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:14:24,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:24,871 INFO L87 Difference]: Start difference. First operand 865 states and 2421 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 16:14:25,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:25,052 INFO L93 Difference]: Finished difference Result 1298 states and 3602 transitions. [2022-11-16 16:14:25,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:14:25,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-16 16:14:25,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:25,061 INFO L225 Difference]: With dead ends: 1298 [2022-11-16 16:14:25,061 INFO L226 Difference]: Without dead ends: 1298 [2022-11-16 16:14:25,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:25,066 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 32 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:25,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 12 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:14:25,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2022-11-16 16:14:25,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 926. [2022-11-16 16:14:25,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 898 states have (on average 2.829621380846325) internal successors, (2541), 925 states have internal predecessors, (2541), 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 16:14:25,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 2541 transitions. [2022-11-16 16:14:25,108 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 2541 transitions. Word has length 7 [2022-11-16 16:14:25,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:25,108 INFO L495 AbstractCegarLoop]: Abstraction has 926 states and 2541 transitions. [2022-11-16 16:14:25,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 16:14:25,109 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 2541 transitions. [2022-11-16 16:14:25,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 16:14:25,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:25,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:14:25,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 16:14:25,119 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 16:14:25,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:25,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1968987697, now seen corresponding path program 1 times [2022-11-16 16:14:25,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:25,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486259264] [2022-11-16 16:14:25,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:25,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:14:25,235 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 16:14:25,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:25,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486259264] [2022-11-16 16:14:25,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486259264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:14:25,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:14:25,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:14:25,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42137974] [2022-11-16 16:14:25,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:14:25,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:14:25,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:25,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:14:25,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:25,239 INFO L87 Difference]: Start difference. First operand 926 states and 2541 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 16:14:25,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:25,395 INFO L93 Difference]: Finished difference Result 947 states and 2605 transitions. [2022-11-16 16:14:25,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:14:25,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-16 16:14:25,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:25,402 INFO L225 Difference]: With dead ends: 947 [2022-11-16 16:14:25,403 INFO L226 Difference]: Without dead ends: 920 [2022-11-16 16:14:25,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:25,404 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 20 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:25,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 15 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:14:25,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2022-11-16 16:14:25,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 920. [2022-11-16 16:14:25,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 897 states have (on average 2.8160535117056855) internal successors, (2526), 919 states have internal predecessors, (2526), 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 16:14:25,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 2526 transitions. [2022-11-16 16:14:25,444 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 2526 transitions. Word has length 11 [2022-11-16 16:14:25,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:25,444 INFO L495 AbstractCegarLoop]: Abstraction has 920 states and 2526 transitions. [2022-11-16 16:14:25,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 16:14:25,445 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 2526 transitions. [2022-11-16 16:14:25,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 16:14:25,446 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:25,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:14:25,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 16:14:25,447 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 16:14:25,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:25,448 INFO L85 PathProgramCache]: Analyzing trace with hash 961964717, now seen corresponding path program 1 times [2022-11-16 16:14:25,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:25,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130997940] [2022-11-16 16:14:25,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:25,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:14:25,668 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 16:14:25,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:25,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130997940] [2022-11-16 16:14:25,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130997940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:14:25,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:14:25,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:14:25,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620740821] [2022-11-16 16:14:25,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:14:25,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:14:25,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:25,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:14:25,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:25,677 INFO L87 Difference]: Start difference. First operand 920 states and 2526 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 16:14:25,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:25,784 INFO L93 Difference]: Finished difference Result 902 states and 2489 transitions. [2022-11-16 16:14:25,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:14:25,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-16 16:14:25,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:25,790 INFO L225 Difference]: With dead ends: 902 [2022-11-16 16:14:25,791 INFO L226 Difference]: Without dead ends: 838 [2022-11-16 16:14:25,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:25,793 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 17 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:25,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 31 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:14:25,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-11-16 16:14:25,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2022-11-16 16:14:25,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 820 states have (on average 2.8085365853658537) internal successors, (2303), 837 states have internal predecessors, (2303), 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 16:14:25,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 2303 transitions. [2022-11-16 16:14:25,852 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 2303 transitions. Word has length 12 [2022-11-16 16:14:25,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:25,853 INFO L495 AbstractCegarLoop]: Abstraction has 838 states and 2303 transitions. [2022-11-16 16:14:25,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 16:14:25,854 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 2303 transitions. [2022-11-16 16:14:25,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 16:14:25,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:25,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:14:25,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 16:14:25,857 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting monitor_threadErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 16:14:25,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:25,857 INFO L85 PathProgramCache]: Analyzing trace with hash 2020809940, now seen corresponding path program 1 times [2022-11-16 16:14:25,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:25,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72186753] [2022-11-16 16:14:25,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:25,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:14:25,959 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 16:14:25,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:25,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72186753] [2022-11-16 16:14:25,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72186753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:14:25,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:14:25,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:14:25,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822145049] [2022-11-16 16:14:25,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:14:25,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:14:25,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:25,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:14:25,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:25,962 INFO L87 Difference]: Start difference. First operand 838 states and 2303 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 16:14:26,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:26,084 INFO L93 Difference]: Finished difference Result 849 states and 2335 transitions. [2022-11-16 16:14:26,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:14:26,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-16 16:14:26,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:26,090 INFO L225 Difference]: With dead ends: 849 [2022-11-16 16:14:26,090 INFO L226 Difference]: Without dead ends: 770 [2022-11-16 16:14:26,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:14:26,093 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 17 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:26,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 16 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:14:26,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2022-11-16 16:14:26,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 770. [2022-11-16 16:14:26,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 756 states have (on average 2.798941798941799) internal successors, (2116), 769 states have internal predecessors, (2116), 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 16:14:26,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 2116 transitions. [2022-11-16 16:14:26,118 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 2116 transitions. Word has length 13 [2022-11-16 16:14:26,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:26,119 INFO L495 AbstractCegarLoop]: Abstraction has 770 states and 2116 transitions. [2022-11-16 16:14:26,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 16:14:26,119 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 2116 transitions. [2022-11-16 16:14:26,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 16:14:26,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:26,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:14:26,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 16:14:26,121 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 16:14:26,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:26,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1557911462, now seen corresponding path program 1 times [2022-11-16 16:14:26,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:26,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369386630] [2022-11-16 16:14:26,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:26,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:14:26,367 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 16:14:26,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:14:26,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369386630] [2022-11-16 16:14:26,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369386630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:14:26,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:14:26,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:14:26,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383864919] [2022-11-16 16:14:26,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:14:26,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:14:26,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:14:26,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:14:26,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:14:26,372 INFO L87 Difference]: Start difference. First operand 770 states and 2116 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 16:14:26,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:14:26,567 INFO L93 Difference]: Finished difference Result 1454 states and 4037 transitions. [2022-11-16 16:14:26,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:14:26,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-16 16:14:26,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:14:26,576 INFO L225 Difference]: With dead ends: 1454 [2022-11-16 16:14:26,576 INFO L226 Difference]: Without dead ends: 1454 [2022-11-16 16:14:26,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:14:26,578 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 65 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 16:14:26,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 43 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 16:14:26,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2022-11-16 16:14:26,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 1126. [2022-11-16 16:14:26,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 1112 states have (on average 2.887589928057554) internal successors, (3211), 1125 states have internal predecessors, (3211), 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 16:14:26,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 3211 transitions. [2022-11-16 16:14:26,629 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 3211 transitions. Word has length 17 [2022-11-16 16:14:26,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:14:26,630 INFO L495 AbstractCegarLoop]: Abstraction has 1126 states and 3211 transitions. [2022-11-16 16:14:26,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 16:14:26,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 3211 transitions. [2022-11-16 16:14:26,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 16:14:26,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:14:26,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:14:26,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 16:14:26,633 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting monitor_threadErr4ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-16 16:14:26,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:14:26,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1595775830, now seen corresponding path program 1 times [2022-11-16 16:14:26,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:14:26,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908352461] [2022-11-16 16:14:26,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:14:26,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:14:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 16:14:26,664 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 16:14:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 16:14:26,706 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-16 16:14:26,707 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 16:14:26,708 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (30 of 31 remaining) [2022-11-16 16:14:26,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2022-11-16 16:14:26,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2022-11-16 16:14:26,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2022-11-16 16:14:26,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2022-11-16 16:14:26,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2022-11-16 16:14:26,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2022-11-16 16:14:26,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2022-11-16 16:14:26,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2022-11-16 16:14:26,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2022-11-16 16:14:26,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2022-11-16 16:14:26,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2022-11-16 16:14:26,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2022-11-16 16:14:26,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2022-11-16 16:14:26,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2022-11-16 16:14:26,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2022-11-16 16:14:26,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2022-11-16 16:14:26,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2022-11-16 16:14:26,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2022-11-16 16:14:26,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 31 remaining) [2022-11-16 16:14:26,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 31 remaining) [2022-11-16 16:14:26,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2022-11-16 16:14:26,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2022-11-16 16:14:26,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2022-11-16 16:14:26,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2022-11-16 16:14:26,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2022-11-16 16:14:26,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2022-11-16 16:14:26,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2022-11-16 16:14:26,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2022-11-16 16:14:26,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2022-11-16 16:14:26,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2022-11-16 16:14:26,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 16:14:26,719 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:14:26,725 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 16:14:26,725 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 16:14:26,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:14:26 BasicIcfg [2022-11-16 16:14:26,767 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 16:14:26,768 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 16:14:26,768 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 16:14:26,768 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 16:14:26,770 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:14:05" (3/4) ... [2022-11-16 16:14:26,773 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 16:14:26,773 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 16:14:26,774 INFO L158 Benchmark]: Toolchain (without parser) took 24209.52ms. Allocated memory was 98.6MB in the beginning and 188.7MB in the end (delta: 90.2MB). Free memory was 70.8MB in the beginning and 106.1MB in the end (delta: -35.2MB). Peak memory consumption was 54.2MB. Max. memory is 16.1GB. [2022-11-16 16:14:26,774 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 98.6MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:14:26,774 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1568.96ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 70.8MB in the beginning and 93.2MB in the end (delta: -22.4MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2022-11-16 16:14:26,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.52ms. Allocated memory is still 125.8MB. Free memory was 93.2MB in the beginning and 89.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 16:14:26,775 INFO L158 Benchmark]: Boogie Preprocessor took 52.89ms. Allocated memory is still 125.8MB. Free memory was 89.9MB in the beginning and 86.3MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 16:14:26,775 INFO L158 Benchmark]: RCFGBuilder took 990.29ms. Allocated memory is still 125.8MB. Free memory was 86.3MB in the beginning and 59.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-16 16:14:26,776 INFO L158 Benchmark]: TraceAbstraction took 21510.81ms. Allocated memory was 125.8MB in the beginning and 188.7MB in the end (delta: 62.9MB). Free memory was 58.4MB in the beginning and 107.1MB in the end (delta: -48.7MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2022-11-16 16:14:26,776 INFO L158 Benchmark]: Witness Printer took 5.58ms. Allocated memory is still 188.7MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:14:26,778 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 98.6MB. Free memory is still 66.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1568.96ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 70.8MB in the beginning and 93.2MB in the end (delta: -22.4MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.52ms. Allocated memory is still 125.8MB. Free memory was 93.2MB in the beginning and 89.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.89ms. Allocated memory is still 125.8MB. Free memory was 89.9MB in the beginning and 86.3MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 990.29ms. Allocated memory is still 125.8MB. Free memory was 86.3MB in the beginning and 59.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 21510.81ms. Allocated memory was 125.8MB in the beginning and 188.7MB in the end (delta: 62.9MB). Free memory was 58.4MB in the beginning and 107.1MB in the end (delta: -48.7MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * Witness Printer took 5.58ms. Allocated memory is still 188.7MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.9s, 254 PlacesBefore, 66 PlacesAfterwards, 278 TransitionsBefore, 81 TransitionsAfterwards, 19072 CoEnabledTransitionPairs, 7 FixpointIterations, 80 TrivialSequentialCompositions, 161 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 38 ConcurrentYvCompositions, 9 ChoiceCompositions, 299 TotalNumberOfCompositions, 36829 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 21712, independent: 21348, independent conditional: 0, independent unconditional: 21348, dependent: 364, dependent conditional: 0, dependent unconditional: 364, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14000, independent: 13909, independent conditional: 0, independent unconditional: 13909, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14000, independent: 13716, independent conditional: 0, independent unconditional: 13716, dependent: 284, dependent conditional: 0, dependent unconditional: 284, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 284, independent: 193, independent conditional: 0, independent unconditional: 193, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 358, independent: 182, independent conditional: 0, independent unconditional: 182, dependent: 175, dependent conditional: 0, dependent unconditional: 175, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 21712, independent: 7439, independent conditional: 0, independent unconditional: 7439, dependent: 273, dependent conditional: 0, dependent unconditional: 273, unknown: 14000, unknown conditional: 0, unknown unconditional: 14000] , Statistics on independence cache: Total cache size (in pairs): 828, Positive cache size: 794, Positive conditional cache size: 0, Positive unconditional cache size: 794, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 1830]: Data race detected Data race detected The following path leads to a data race: [L1799] 0 time_t end_time; [L1797] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1798] 0 long counter; [L1836] 0 int status; [L1837] 0 pthread_t counter_thread_id; [L1838] 0 pthread_t monitor_thread_id; [L1839] 0 end_time = time (((void *)0)) + 60 [L1840] EXPR, FCALL, FORK 0 pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) VAL [\old(argc)=1150, arg={0:0}, argc=1150, argv={1151:1152}, argv={1151:1152}, counter=0, counter_thread_id={29:0}, end_time=1, monitor_thread_id={28:0}, mutex={27:0}, pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0))=0] [L1801] 1 int status; [L1802] 1 int spin; VAL [arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={27:0}] [L1803] 1 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={27:0}, time (((void *)0))=0] [L1840] 0 status = pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) [L1841] COND FALSE 0 !(status != 0) [L1843] FCALL, FORK 0 pthread_create (&monitor_thread_id, ((void *)0), monitor_thread, ((void *)0)) VAL [\old(argc)=1150, arg={0:0}, arg={0:0}, arg={0:0}, argc=1150, argv={1151:1152}, argv={1151:1152}, counter=0, counter_thread_id={29:0}, end_time=1, monitor_thread_id={28:0}, mutex={27:0}, pthread_create (&monitor_thread_id, ((void *)0), monitor_thread, ((void *)0))=1, status=0, time (((void *)0))=0] [L1803] 1 time (((void *)0)) < end_time [L1803] COND TRUE 1 time (((void *)0)) < end_time [L1804] 1 status = pthread_mutex_lock (&mutex) [L1805] COND FALSE 1 !(status != 0) [L1807] 1 spin = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={27:0}, spin=0, status=0] [L1807] COND TRUE 1 spin < 10000000 [L1808] 1 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={27:0}, spin=0, status=0] [L1817] 2 int status; [L1818] 2 int misses = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=1, misses=0, mutex={27:0}, spin=0, status=0] [L1819] 2 time (((void *)0)) < end_time [L1819] COND TRUE 2 time (((void *)0)) < end_time [L1821] 2 status = pthread_mutex_trylock (&mutex) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=1, misses=0, mutex={27:0}, pthread_mutex_trylock (&mutex)=16, spin=0, status=16, status=0] [L1822] COND FALSE 2 !(status != 16) [L1830] 2 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=1, misses=0, mutex={27:0}, spin=0, status=16, status=0] [L1808] 1 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=0, counter++=1153, end_time=1, misses=0, mutex={27:0}, spin=0, status=16, status=0] [L1830] 2 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=0, counter++=1153, end_time=1, misses=0, mutex={27:0}, spin=0, status=0, status=16] Now there is a data race on ~counter~0 between C: counter++ [1808] and C: counter++ [1830] - UnprovableResult [Line: 1819]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1824]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1825]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1828]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1803]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1806]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1811]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1839]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1842]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1845]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1846]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1848]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1849]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1851]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1840]: 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: 1843]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 361 locations, 31 error locations. Started 1 CEGAR loops. OverallTime: 21.3s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 18.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 182 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 182 mSDsluCounter, 165 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 570 IncrementalHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 108 mSDtfsCounter, 570 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2234occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 700 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 131 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 proved your program to be incorrect! [2022-11-16 16:14:26,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626b4bb0-8ff9-4dae-a24b-5bd0c136e94f/bin/utaipan-Xvt2sAort0/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