./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b 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_d8c8aee4-9d8c-4c07-b49b-0da8787e06ee/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8c8aee4-9d8c-4c07-b49b-0da8787e06ee/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8c8aee4-9d8c-4c07-b49b-0da8787e06ee/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8c8aee4-9d8c-4c07-b49b-0da8787e06ee/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8c8aee4-9d8c-4c07-b49b-0da8787e06ee/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8c8aee4-9d8c-4c07-b49b-0da8787e06ee/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 610058eb9ed98833ba9b7a0798b4759bf36fe1b982d69af76f73ab299f075720 --- 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-8393723 [2022-11-18 19:50:52,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:50:52,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:50:52,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:50:52,218 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:50:52,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:50:52,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:50:52,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:50:52,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:50:52,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:50:52,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:50:52,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:50:52,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:50:52,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:50:52,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:50:52,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:50:52,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:50:52,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:50:52,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:50:52,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:50:52,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:50:52,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:50:52,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:50:52,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:50:52,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:50:52,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:50:52,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:50:52,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:50:52,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:50:52,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:50:52,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:50:52,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:50:52,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:50:52,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:50:52,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:50:52,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:50:52,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:50:52,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:50:52,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:50:52,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:50:52,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:50:52,277 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8c8aee4-9d8c-4c07-b49b-0da8787e06ee/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 19:50:52,325 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:50:52,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:50:52,325 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:50:52,325 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:50:52,326 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:50:52,326 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:50:52,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:50:52,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:50:52,327 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:50:52,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:50:52,328 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:50:52,328 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:50:52,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:50:52,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:50:52,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:50:52,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:50:52,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:50:52,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:50:52,329 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 19:50:52,329 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:50:52,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:50:52,330 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:50:52,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:50:52,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:50:52,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:50:52,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:50:52,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:50:52,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:50:52,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:50:52,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:50:52,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:50:52,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:50:52,332 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:50:52,332 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:50:52,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:50:52,333 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_d8c8aee4-9d8c-4c07-b49b-0da8787e06ee/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8c8aee4-9d8c-4c07-b49b-0da8787e06ee/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 610058eb9ed98833ba9b7a0798b4759bf36fe1b982d69af76f73ab299f075720 [2022-11-18 19:50:52,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:50:52,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:50:52,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:50:52,626 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:50:52,626 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:50:52,628 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8c8aee4-9d8c-4c07-b49b-0da8787e06ee/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c [2022-11-18 19:50:52,700 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8c8aee4-9d8c-4c07-b49b-0da8787e06ee/bin/uautomizer-TMbwUNV5ro/data/c0737ce9a/0bafda485841433395799591f5be4326/FLAG6ea9eafe7 [2022-11-18 19:50:53,200 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:50:53,200 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8c8aee4-9d8c-4c07-b49b-0da8787e06ee/sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c [2022-11-18 19:50:53,210 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8c8aee4-9d8c-4c07-b49b-0da8787e06ee/bin/uautomizer-TMbwUNV5ro/data/c0737ce9a/0bafda485841433395799591f5be4326/FLAG6ea9eafe7 [2022-11-18 19:50:53,538 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8c8aee4-9d8c-4c07-b49b-0da8787e06ee/bin/uautomizer-TMbwUNV5ro/data/c0737ce9a/0bafda485841433395799591f5be4326 [2022-11-18 19:50:53,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:50:53,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:50:53,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:50:53,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:50:53,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:50:53,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:50:53" (1/1) ... [2022-11-18 19:50:53,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ff1988c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:53, skipping insertion in model container [2022-11-18 19:50:53,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:50:53" (1/1) ... [2022-11-18 19:50:53,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:50:53,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:50:53,803 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8c8aee4-9d8c-4c07-b49b-0da8787e06ee/sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c[2438,2451] [2022-11-18 19:50:53,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:50:53,819 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:50:53,842 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8c8aee4-9d8c-4c07-b49b-0da8787e06ee/sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c[2438,2451] [2022-11-18 19:50:53,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:50:53,861 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:50:53,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:53 WrapperNode [2022-11-18 19:50:53,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:50:53,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:50:53,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:50:53,863 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:50:53,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:53" (1/1) ... [2022-11-18 19:50:53,880 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:53" (1/1) ... [2022-11-18 19:50:53,936 INFO L138 Inliner]: procedures = 24, calls = 33, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 233 [2022-11-18 19:50:53,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:50:53,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:50:53,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:50:53,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:50:53,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:53" (1/1) ... [2022-11-18 19:50:53,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:53" (1/1) ... [2022-11-18 19:50:53,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:53" (1/1) ... [2022-11-18 19:50:53,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:53" (1/1) ... [2022-11-18 19:50:53,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:53" (1/1) ... [2022-11-18 19:50:53,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:53" (1/1) ... [2022-11-18 19:50:53,999 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:53" (1/1) ... [2022-11-18 19:50:54,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:53" (1/1) ... [2022-11-18 19:50:54,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:50:54,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:50:54,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:50:54,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:50:54,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:53" (1/1) ... [2022-11-18 19:50:54,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:50:54,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8c8aee4-9d8c-4c07-b49b-0da8787e06ee/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:50:54,042 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8c8aee4-9d8c-4c07-b49b-0da8787e06ee/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:50:54,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8c8aee4-9d8c-4c07-b49b-0da8787e06ee/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:50:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:50:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 19:50:54,084 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 19:50:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 19:50:54,085 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 19:50:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:50:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:50:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:50:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 19:50:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 19:50:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:50:54,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:50:54,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:50:54,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:50:54,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:50:54,088 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:50:54,213 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:50:54,215 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:50:54,772 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:50:55,126 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:50:55,127 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-18 19:50:55,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:50:55 BoogieIcfgContainer [2022-11-18 19:50:55,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:50:55,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:50:55,135 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:50:55,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:50:55,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:50:53" (1/3) ... [2022-11-18 19:50:55,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65014c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:50:55, skipping insertion in model container [2022-11-18 19:50:55,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:53" (2/3) ... [2022-11-18 19:50:55,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65014c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:50:55, skipping insertion in model container [2022-11-18 19:50:55,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:50:55" (3/3) ... [2022-11-18 19:50:55,143 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-simple-queue.wvr.c [2022-11-18 19:50:55,153 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:50:55,164 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:50:55,164 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-11-18 19:50:55,164 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:50:55,296 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 19:50:55,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 192 transitions, 400 flow [2022-11-18 19:50:55,489 INFO L130 PetriNetUnfolder]: 9/190 cut-off events. [2022-11-18 19:50:55,489 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 19:50:55,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 190 events. 9/190 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 186 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 132. Up to 2 conditions per place. [2022-11-18 19:50:55,496 INFO L82 GeneralOperation]: Start removeDead. Operand has 190 places, 192 transitions, 400 flow [2022-11-18 19:50:55,508 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 171 places, 172 transitions, 356 flow [2022-11-18 19:50:55,527 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:50:55,533 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@47e4c604, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:50:55,533 INFO L358 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2022-11-18 19:50:55,540 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2022-11-18 19:50:55,540 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:50:55,540 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:50:55,541 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:55,542 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 19:50:55,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:55,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1247370491, now seen corresponding path program 1 times [2022-11-18 19:50:55,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:55,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655772194] [2022-11-18 19:50:55,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:55,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:55,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:55,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:55,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:55,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655772194] [2022-11-18 19:50:55,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655772194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:55,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:55,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:50:55,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995581010] [2022-11-18 19:50:55,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:55,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:50:55,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:55,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:50:55,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:50:55,900 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 192 [2022-11-18 19:50:55,907 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 172 transitions, 356 flow. Second operand has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 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) [2022-11-18 19:50:55,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:50:55,908 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 192 [2022-11-18 19:50:55,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:50:56,025 INFO L130 PetriNetUnfolder]: 5/149 cut-off events. [2022-11-18 19:50:56,026 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-18 19:50:56,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 149 events. 5/149 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 77 event pairs, 0 based on Foata normal form. 7/142 useless extension candidates. Maximal degree in co-relation 126. Up to 14 conditions per place. [2022-11-18 19:50:56,028 INFO L137 encePairwiseOnDemand]: 165/192 looper letters, 11 selfloop transitions, 2 changer transitions 2/147 dead transitions. [2022-11-18 19:50:56,029 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 147 transitions, 332 flow [2022-11-18 19:50:56,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:50:56,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:50:56,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 491 transitions. [2022-11-18 19:50:56,052 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8524305555555556 [2022-11-18 19:50:56,053 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 491 transitions. [2022-11-18 19:50:56,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 491 transitions. [2022-11-18 19:50:56,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:50:56,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 491 transitions. [2022-11-18 19:50:56,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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) [2022-11-18 19:50:56,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-11-18 19:50:56,080 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-11-18 19:50:56,082 INFO L175 Difference]: Start difference. First operand has 171 places, 172 transitions, 356 flow. Second operand 3 states and 491 transitions. [2022-11-18 19:50:56,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 147 transitions, 332 flow [2022-11-18 19:50:56,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 147 transitions, 324 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 19:50:56,094 INFO L231 Difference]: Finished difference. Result has 149 places, 145 transitions, 298 flow [2022-11-18 19:50:56,096 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=149, PETRI_TRANSITIONS=145} [2022-11-18 19:50:56,100 INFO L288 CegarLoopForPetriNet]: 171 programPoint places, -22 predicate places. [2022-11-18 19:50:56,101 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 145 transitions, 298 flow [2022-11-18 19:50:56,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 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) [2022-11-18 19:50:56,102 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:50:56,102 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:56,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:50:56,103 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 19:50:56,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:56,104 INFO L85 PathProgramCache]: Analyzing trace with hash -257595311, now seen corresponding path program 1 times [2022-11-18 19:50:56,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:56,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315049130] [2022-11-18 19:50:56,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:56,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:56,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:56,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:56,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:56,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315049130] [2022-11-18 19:50:56,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315049130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:56,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:56,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:50:56,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976937166] [2022-11-18 19:50:56,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:56,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:50:56,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:56,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:50:56,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:50:56,188 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 192 [2022-11-18 19:50:56,189 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 145 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 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) [2022-11-18 19:50:56,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:50:56,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 192 [2022-11-18 19:50:56,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:50:56,267 INFO L130 PetriNetUnfolder]: 5/146 cut-off events. [2022-11-18 19:50:56,268 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 19:50:56,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 146 events. 5/146 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 74 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 139. Up to 15 conditions per place. [2022-11-18 19:50:56,270 INFO L137 encePairwiseOnDemand]: 189/192 looper letters, 12 selfloop transitions, 2 changer transitions 0/144 dead transitions. [2022-11-18 19:50:56,270 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 144 transitions, 324 flow [2022-11-18 19:50:56,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:50:56,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:50:56,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 468 transitions. [2022-11-18 19:50:56,273 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8125 [2022-11-18 19:50:56,274 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 468 transitions. [2022-11-18 19:50:56,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 468 transitions. [2022-11-18 19:50:56,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:50:56,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 468 transitions. [2022-11-18 19:50:56,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 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) [2022-11-18 19:50:56,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-11-18 19:50:56,279 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-11-18 19:50:56,279 INFO L175 Difference]: Start difference. First operand has 149 places, 145 transitions, 298 flow. Second operand 3 states and 468 transitions. [2022-11-18 19:50:56,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 144 transitions, 324 flow [2022-11-18 19:50:56,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 144 transitions, 320 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:50:56,287 INFO L231 Difference]: Finished difference. Result has 146 places, 144 transitions, 296 flow [2022-11-18 19:50:56,288 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=146, PETRI_TRANSITIONS=144} [2022-11-18 19:50:56,289 INFO L288 CegarLoopForPetriNet]: 171 programPoint places, -25 predicate places. [2022-11-18 19:50:56,289 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 144 transitions, 296 flow [2022-11-18 19:50:56,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 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) [2022-11-18 19:50:56,291 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:50:56,291 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:56,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:50:56,291 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 19:50:56,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:56,292 INFO L85 PathProgramCache]: Analyzing trace with hash 920851279, now seen corresponding path program 1 times [2022-11-18 19:50:56,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:56,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138445525] [2022-11-18 19:50:56,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:56,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:56,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:56,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:56,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:56,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138445525] [2022-11-18 19:50:56,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138445525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:56,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:56,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:50:56,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404198308] [2022-11-18 19:50:56,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:56,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:50:56,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:56,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:50:56,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:50:56,412 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 192 [2022-11-18 19:50:56,413 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 144 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 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) [2022-11-18 19:50:56,413 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:50:56,413 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 192 [2022-11-18 19:50:56,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:50:56,494 INFO L130 PetriNetUnfolder]: 5/145 cut-off events. [2022-11-18 19:50:56,495 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 19:50:56,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 145 events. 5/145 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 73 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 131. Up to 15 conditions per place. [2022-11-18 19:50:56,496 INFO L137 encePairwiseOnDemand]: 189/192 looper letters, 12 selfloop transitions, 2 changer transitions 0/143 dead transitions. [2022-11-18 19:50:56,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 143 transitions, 322 flow [2022-11-18 19:50:56,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:50:56,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:50:56,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 468 transitions. [2022-11-18 19:50:56,500 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8125 [2022-11-18 19:50:56,501 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 468 transitions. [2022-11-18 19:50:56,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 468 transitions. [2022-11-18 19:50:56,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:50:56,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 468 transitions. [2022-11-18 19:50:56,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 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) [2022-11-18 19:50:56,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-11-18 19:50:56,507 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-11-18 19:50:56,507 INFO L175 Difference]: Start difference. First operand has 146 places, 144 transitions, 296 flow. Second operand 3 states and 468 transitions. [2022-11-18 19:50:56,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 143 transitions, 322 flow [2022-11-18 19:50:56,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 143 transitions, 318 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:50:56,515 INFO L231 Difference]: Finished difference. Result has 145 places, 143 transitions, 294 flow [2022-11-18 19:50:56,515 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=145, PETRI_TRANSITIONS=143} [2022-11-18 19:50:56,518 INFO L288 CegarLoopForPetriNet]: 171 programPoint places, -26 predicate places. [2022-11-18 19:50:56,518 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 143 transitions, 294 flow [2022-11-18 19:50:56,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 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) [2022-11-18 19:50:56,519 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:50:56,519 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:56,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:50:56,520 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 19:50:56,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:56,521 INFO L85 PathProgramCache]: Analyzing trace with hash 516179712, now seen corresponding path program 1 times [2022-11-18 19:50:56,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:56,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309227030] [2022-11-18 19:50:56,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:56,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:56,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:56,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:56,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309227030] [2022-11-18 19:50:56,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309227030] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:56,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:56,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:50:56,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059580951] [2022-11-18 19:50:56,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:56,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:50:56,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:56,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:50:56,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:50:56,615 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 192 [2022-11-18 19:50:56,616 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 143 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 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) [2022-11-18 19:50:56,616 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:50:56,616 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 192 [2022-11-18 19:50:56,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:50:56,670 INFO L130 PetriNetUnfolder]: 7/166 cut-off events. [2022-11-18 19:50:56,670 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-18 19:50:56,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 166 events. 7/166 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 122 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 145. Up to 10 conditions per place. [2022-11-18 19:50:56,671 INFO L137 encePairwiseOnDemand]: 189/192 looper letters, 12 selfloop transitions, 2 changer transitions 0/146 dead transitions. [2022-11-18 19:50:56,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 146 transitions, 330 flow [2022-11-18 19:50:56,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:50:56,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:50:56,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 477 transitions. [2022-11-18 19:50:56,674 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.828125 [2022-11-18 19:50:56,674 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 477 transitions. [2022-11-18 19:50:56,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 477 transitions. [2022-11-18 19:50:56,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:50:56,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 477 transitions. [2022-11-18 19:50:56,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:50:56,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-11-18 19:50:56,678 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-11-18 19:50:56,678 INFO L175 Difference]: Start difference. First operand has 145 places, 143 transitions, 294 flow. Second operand 3 states and 477 transitions. [2022-11-18 19:50:56,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 146 transitions, 330 flow [2022-11-18 19:50:56,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 146 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:50:56,682 INFO L231 Difference]: Finished difference. Result has 145 places, 143 transitions, 298 flow [2022-11-18 19:50:56,683 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=145, PETRI_TRANSITIONS=143} [2022-11-18 19:50:56,684 INFO L288 CegarLoopForPetriNet]: 171 programPoint places, -26 predicate places. [2022-11-18 19:50:56,684 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 143 transitions, 298 flow [2022-11-18 19:50:56,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 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) [2022-11-18 19:50:56,685 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:50:56,685 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:56,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:50:56,685 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 19:50:56,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:56,686 INFO L85 PathProgramCache]: Analyzing trace with hash 110258181, now seen corresponding path program 1 times [2022-11-18 19:50:56,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:56,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149811003] [2022-11-18 19:50:56,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:56,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:56,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:56,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:56,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149811003] [2022-11-18 19:50:56,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149811003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:56,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:56,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:50:56,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020525593] [2022-11-18 19:50:56,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:56,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:50:56,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:56,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:50:56,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:50:56,730 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 192 [2022-11-18 19:50:56,731 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 143 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 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) [2022-11-18 19:50:56,731 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:50:56,731 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 192 [2022-11-18 19:50:56,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:50:56,779 INFO L130 PetriNetUnfolder]: 7/163 cut-off events. [2022-11-18 19:50:56,780 INFO L131 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2022-11-18 19:50:56,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 163 events. 7/163 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 124 event pairs, 1 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 114. Up to 17 conditions per place. [2022-11-18 19:50:56,781 INFO L137 encePairwiseOnDemand]: 189/192 looper letters, 10 selfloop transitions, 2 changer transitions 0/142 dead transitions. [2022-11-18 19:50:56,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 142 transitions, 320 flow [2022-11-18 19:50:56,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:50:56,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:50:56,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 474 transitions. [2022-11-18 19:50:56,783 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8229166666666666 [2022-11-18 19:50:56,783 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 474 transitions. [2022-11-18 19:50:56,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 474 transitions. [2022-11-18 19:50:56,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:50:56,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 474 transitions. [2022-11-18 19:50:56,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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) [2022-11-18 19:50:56,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-11-18 19:50:56,787 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-11-18 19:50:56,788 INFO L175 Difference]: Start difference. First operand has 145 places, 143 transitions, 298 flow. Second operand 3 states and 474 transitions. [2022-11-18 19:50:56,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 142 transitions, 320 flow [2022-11-18 19:50:56,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 142 transitions, 318 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:50:56,791 INFO L231 Difference]: Finished difference. Result has 145 places, 142 transitions, 298 flow [2022-11-18 19:50:56,792 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=145, PETRI_TRANSITIONS=142} [2022-11-18 19:50:56,792 INFO L288 CegarLoopForPetriNet]: 171 programPoint places, -26 predicate places. [2022-11-18 19:50:56,793 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 142 transitions, 298 flow [2022-11-18 19:50:56,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 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) [2022-11-18 19:50:56,793 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:50:56,794 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:56,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:50:56,794 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 19:50:56,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:56,795 INFO L85 PathProgramCache]: Analyzing trace with hash -947975520, now seen corresponding path program 1 times [2022-11-18 19:50:56,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:56,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060631228] [2022-11-18 19:50:56,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:56,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:56,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:56,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:56,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060631228] [2022-11-18 19:50:56,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060631228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:56,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:56,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:50:56,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518472068] [2022-11-18 19:50:56,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:56,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:50:56,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:56,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:50:56,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:50:56,836 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 192 [2022-11-18 19:50:56,837 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 142 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 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) [2022-11-18 19:50:56,837 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:50:56,837 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 192 [2022-11-18 19:50:56,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:50:56,881 INFO L130 PetriNetUnfolder]: 7/162 cut-off events. [2022-11-18 19:50:56,882 INFO L131 PetriNetUnfolder]: For 8/10 co-relation queries the response was YES. [2022-11-18 19:50:56,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 162 events. 7/162 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 124 event pairs, 1 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 138. Up to 15 conditions per place. [2022-11-18 19:50:56,883 INFO L137 encePairwiseOnDemand]: 190/192 looper letters, 10 selfloop transitions, 1 changer transitions 0/141 dead transitions. [2022-11-18 19:50:56,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 141 transitions, 318 flow [2022-11-18 19:50:56,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:50:56,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:50:56,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 473 transitions. [2022-11-18 19:50:56,885 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8211805555555556 [2022-11-18 19:50:56,886 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 473 transitions. [2022-11-18 19:50:56,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 473 transitions. [2022-11-18 19:50:56,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:50:56,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 473 transitions. [2022-11-18 19:50:56,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 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) [2022-11-18 19:50:56,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-11-18 19:50:56,889 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-11-18 19:50:56,890 INFO L175 Difference]: Start difference. First operand has 145 places, 142 transitions, 298 flow. Second operand 3 states and 473 transitions. [2022-11-18 19:50:56,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 141 transitions, 318 flow [2022-11-18 19:50:56,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 141 transitions, 314 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:50:56,893 INFO L231 Difference]: Finished difference. Result has 144 places, 141 transitions, 294 flow [2022-11-18 19:50:56,893 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=144, PETRI_TRANSITIONS=141} [2022-11-18 19:50:56,894 INFO L288 CegarLoopForPetriNet]: 171 programPoint places, -27 predicate places. [2022-11-18 19:50:56,894 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 141 transitions, 294 flow [2022-11-18 19:50:56,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 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) [2022-11-18 19:50:56,895 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:50:56,895 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:56,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:50:56,896 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 19:50:56,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:56,897 INFO L85 PathProgramCache]: Analyzing trace with hash -746343257, now seen corresponding path program 1 times [2022-11-18 19:50:56,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:56,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570159959] [2022-11-18 19:50:56,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:56,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:56,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:56,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:56,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:56,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570159959] [2022-11-18 19:50:56,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570159959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:56,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:56,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:50:56,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794170783] [2022-11-18 19:50:56,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:56,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:50:56,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:56,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:50:56,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:50:56,963 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 192 [2022-11-18 19:50:56,964 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 141 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 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) [2022-11-18 19:50:56,964 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:50:56,964 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 192 [2022-11-18 19:50:56,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:50:57,011 INFO L130 PetriNetUnfolder]: 7/161 cut-off events. [2022-11-18 19:50:57,011 INFO L131 PetriNetUnfolder]: For 8/10 co-relation queries the response was YES. [2022-11-18 19:50:57,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 161 events. 7/161 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 121 event pairs, 1 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 138. Up to 17 conditions per place. [2022-11-18 19:50:57,013 INFO L137 encePairwiseOnDemand]: 189/192 looper letters, 10 selfloop transitions, 2 changer transitions 0/140 dead transitions. [2022-11-18 19:50:57,013 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 140 transitions, 316 flow [2022-11-18 19:50:57,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:50:57,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:50:57,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 474 transitions. [2022-11-18 19:50:57,015 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8229166666666666 [2022-11-18 19:50:57,015 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 474 transitions. [2022-11-18 19:50:57,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 474 transitions. [2022-11-18 19:50:57,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:50:57,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 474 transitions. [2022-11-18 19:50:57,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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) [2022-11-18 19:50:57,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-11-18 19:50:57,019 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-11-18 19:50:57,019 INFO L175 Difference]: Start difference. First operand has 144 places, 141 transitions, 294 flow. Second operand 3 states and 474 transitions. [2022-11-18 19:50:57,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 140 transitions, 316 flow [2022-11-18 19:50:57,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 140 transitions, 315 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:50:57,022 INFO L231 Difference]: Finished difference. Result has 144 places, 140 transitions, 295 flow [2022-11-18 19:50:57,023 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=295, PETRI_PLACES=144, PETRI_TRANSITIONS=140} [2022-11-18 19:50:57,023 INFO L288 CegarLoopForPetriNet]: 171 programPoint places, -27 predicate places. [2022-11-18 19:50:57,024 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 140 transitions, 295 flow [2022-11-18 19:50:57,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 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) [2022-11-18 19:50:57,024 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:50:57,025 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:57,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:50:57,025 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 19:50:57,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:57,026 INFO L85 PathProgramCache]: Analyzing trace with hash -698128605, now seen corresponding path program 1 times [2022-11-18 19:50:57,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:57,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001943414] [2022-11-18 19:50:57,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:57,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:57,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:57,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:57,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001943414] [2022-11-18 19:50:57,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001943414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:57,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:57,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:50:57,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260860424] [2022-11-18 19:50:57,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:57,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:50:57,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:57,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:50:57,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:50:57,538 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 192 [2022-11-18 19:50:57,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 140 transitions, 295 flow. Second operand has 6 states, 6 states have (on average 132.83333333333334) internal successors, (797), 6 states have internal predecessors, (797), 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) [2022-11-18 19:50:57,540 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:50:57,540 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 192 [2022-11-18 19:50:57,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:50:57,697 INFO L130 PetriNetUnfolder]: 43/210 cut-off events. [2022-11-18 19:50:57,698 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-11-18 19:50:57,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 210 events. 43/210 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 262 event pairs, 13 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 285. Up to 85 conditions per place. [2022-11-18 19:50:57,699 INFO L137 encePairwiseOnDemand]: 186/192 looper letters, 30 selfloop transitions, 5 changer transitions 0/139 dead transitions. [2022-11-18 19:50:57,700 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 139 transitions, 363 flow [2022-11-18 19:50:57,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:50:57,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:50:57,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 821 transitions. [2022-11-18 19:50:57,702 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7126736111111112 [2022-11-18 19:50:57,703 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 821 transitions. [2022-11-18 19:50:57,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 821 transitions. [2022-11-18 19:50:57,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:50:57,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 821 transitions. [2022-11-18 19:50:57,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 136.83333333333334) internal successors, (821), 6 states have internal predecessors, (821), 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) [2022-11-18 19:50:57,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 192.0) internal successors, (1344), 7 states have internal predecessors, (1344), 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) [2022-11-18 19:50:57,708 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 192.0) internal successors, (1344), 7 states have internal predecessors, (1344), 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) [2022-11-18 19:50:57,708 INFO L175 Difference]: Start difference. First operand has 144 places, 140 transitions, 295 flow. Second operand 6 states and 821 transitions. [2022-11-18 19:50:57,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 139 transitions, 363 flow [2022-11-18 19:50:57,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 139 transitions, 359 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:50:57,711 INFO L231 Difference]: Finished difference. Result has 146 places, 139 transitions, 299 flow [2022-11-18 19:50:57,712 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=299, PETRI_PLACES=146, PETRI_TRANSITIONS=139} [2022-11-18 19:50:57,713 INFO L288 CegarLoopForPetriNet]: 171 programPoint places, -25 predicate places. [2022-11-18 19:50:57,713 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 139 transitions, 299 flow [2022-11-18 19:50:57,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.83333333333334) internal successors, (797), 6 states have internal predecessors, (797), 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) [2022-11-18 19:50:57,714 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:50:57,714 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:57,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:50:57,714 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 19:50:57,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:57,715 INFO L85 PathProgramCache]: Analyzing trace with hash 457775911, now seen corresponding path program 1 times [2022-11-18 19:50:57,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:57,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582092600] [2022-11-18 19:50:57,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:57,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:58,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:58,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:58,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582092600] [2022-11-18 19:50:58,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582092600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:58,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:58,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:50:58,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652813719] [2022-11-18 19:50:58,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:58,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:50:58,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:58,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:50:58,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:50:58,195 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 192 [2022-11-18 19:50:58,196 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 139 transitions, 299 flow. Second operand has 6 states, 6 states have (on average 137.83333333333334) internal successors, (827), 6 states have internal predecessors, (827), 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) [2022-11-18 19:50:58,196 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:50:58,196 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 192 [2022-11-18 19:50:58,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:50:58,418 INFO L130 PetriNetUnfolder]: 43/203 cut-off events. [2022-11-18 19:50:58,419 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-11-18 19:50:58,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 203 events. 43/203 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 224 event pairs, 1 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 301. Up to 42 conditions per place. [2022-11-18 19:50:58,420 INFO L137 encePairwiseOnDemand]: 187/192 looper letters, 35 selfloop transitions, 4 changer transitions 0/150 dead transitions. [2022-11-18 19:50:58,421 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 150 transitions, 415 flow [2022-11-18 19:50:58,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:50:58,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:50:58,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 851 transitions. [2022-11-18 19:50:58,424 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7387152777777778 [2022-11-18 19:50:58,424 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 851 transitions. [2022-11-18 19:50:58,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 851 transitions. [2022-11-18 19:50:58,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:50:58,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 851 transitions. [2022-11-18 19:50:58,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 141.83333333333334) internal successors, (851), 6 states have internal predecessors, (851), 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) [2022-11-18 19:50:58,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 192.0) internal successors, (1344), 7 states have internal predecessors, (1344), 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) [2022-11-18 19:50:58,431 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 192.0) internal successors, (1344), 7 states have internal predecessors, (1344), 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) [2022-11-18 19:50:58,431 INFO L175 Difference]: Start difference. First operand has 146 places, 139 transitions, 299 flow. Second operand 6 states and 851 transitions. [2022-11-18 19:50:58,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 150 transitions, 415 flow [2022-11-18 19:50:58,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 150 transitions, 405 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:50:58,435 INFO L231 Difference]: Finished difference. Result has 145 places, 138 transitions, 295 flow [2022-11-18 19:50:58,436 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=295, PETRI_PLACES=145, PETRI_TRANSITIONS=138} [2022-11-18 19:50:58,436 INFO L288 CegarLoopForPetriNet]: 171 programPoint places, -26 predicate places. [2022-11-18 19:50:58,436 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 138 transitions, 295 flow [2022-11-18 19:50:58,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.83333333333334) internal successors, (827), 6 states have internal predecessors, (827), 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) [2022-11-18 19:50:58,437 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:50:58,438 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:58,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:50:58,438 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 19:50:58,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:58,439 INFO L85 PathProgramCache]: Analyzing trace with hash -769040501, now seen corresponding path program 1 times [2022-11-18 19:50:58,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:58,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362739230] [2022-11-18 19:50:58,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:58,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:58,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:58,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:58,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362739230] [2022-11-18 19:50:58,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362739230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:58,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:58,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:50:58,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018548180] [2022-11-18 19:50:58,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:58,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:50:58,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:58,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:50:58,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:50:58,918 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 192 [2022-11-18 19:50:58,919 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 138 transitions, 295 flow. Second operand has 6 states, 6 states have (on average 138.83333333333334) internal successors, (833), 6 states have internal predecessors, (833), 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) [2022-11-18 19:50:58,919 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:50:58,919 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 192 [2022-11-18 19:50:58,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:50:59,072 INFO L130 PetriNetUnfolder]: 40/203 cut-off events. [2022-11-18 19:50:59,073 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-11-18 19:50:59,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 203 events. 40/203 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 241 event pairs, 7 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 267. Up to 55 conditions per place. [2022-11-18 19:50:59,074 INFO L137 encePairwiseOnDemand]: 187/192 looper letters, 30 selfloop transitions, 4 changer transitions 0/145 dead transitions. [2022-11-18 19:50:59,075 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 145 transitions, 393 flow [2022-11-18 19:50:59,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:50:59,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:50:59,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 846 transitions. [2022-11-18 19:50:59,078 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.734375 [2022-11-18 19:50:59,078 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 846 transitions. [2022-11-18 19:50:59,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 846 transitions. [2022-11-18 19:50:59,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:50:59,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 846 transitions. [2022-11-18 19:50:59,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 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) [2022-11-18 19:50:59,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 192.0) internal successors, (1344), 7 states have internal predecessors, (1344), 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) [2022-11-18 19:50:59,086 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 192.0) internal successors, (1344), 7 states have internal predecessors, (1344), 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) [2022-11-18 19:50:59,086 INFO L175 Difference]: Start difference. First operand has 145 places, 138 transitions, 295 flow. Second operand 6 states and 846 transitions. [2022-11-18 19:50:59,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 145 transitions, 393 flow [2022-11-18 19:50:59,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 145 transitions, 386 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 19:50:59,091 INFO L231 Difference]: Finished difference. Result has 145 places, 137 transitions, 294 flow [2022-11-18 19:50:59,092 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=294, PETRI_PLACES=145, PETRI_TRANSITIONS=137} [2022-11-18 19:50:59,093 INFO L288 CegarLoopForPetriNet]: 171 programPoint places, -26 predicate places. [2022-11-18 19:50:59,094 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 137 transitions, 294 flow [2022-11-18 19:50:59,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.83333333333334) internal successors, (833), 6 states have internal predecessors, (833), 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) [2022-11-18 19:50:59,094 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:50:59,095 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:59,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:50:59,095 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2022-11-18 19:50:59,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:59,096 INFO L85 PathProgramCache]: Analyzing trace with hash -596218508, now seen corresponding path program 1 times [2022-11-18 19:50:59,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:59,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720682625] [2022-11-18 19:50:59,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:59,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:59,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:59,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:59,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:59,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720682625] [2022-11-18 19:50:59,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720682625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:59,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:59,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:50:59,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155039631] [2022-11-18 19:50:59,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:59,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:50:59,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:59,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:50:59,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:50:59,169 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 192 [2022-11-18 19:50:59,170 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 137 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 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) [2022-11-18 19:50:59,170 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:50:59,170 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 192 [2022-11-18 19:50:59,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:50:59,204 INFO L130 PetriNetUnfolder]: 7/156 cut-off events. [2022-11-18 19:50:59,204 INFO L131 PetriNetUnfolder]: For 8/10 co-relation queries the response was YES. [2022-11-18 19:50:59,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 156 events. 7/156 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 110 event pairs, 1 based on Foata normal form. 2/151 useless extension candidates. Maximal degree in co-relation 167. Up to 16 conditions per place. [2022-11-18 19:50:59,206 INFO L137 encePairwiseOnDemand]: 190/192 looper letters, 0 selfloop transitions, 0 changer transitions 136/136 dead transitions. [2022-11-18 19:50:59,206 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 136 transitions, 312 flow [2022-11-18 19:50:59,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:50:59,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:50:59,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 472 transitions. [2022-11-18 19:50:59,209 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8194444444444444 [2022-11-18 19:50:59,209 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 472 transitions. [2022-11-18 19:50:59,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 472 transitions. [2022-11-18 19:50:59,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:50:59,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 472 transitions. [2022-11-18 19:50:59,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 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) [2022-11-18 19:50:59,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-11-18 19:50:59,213 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-11-18 19:50:59,213 INFO L175 Difference]: Start difference. First operand has 145 places, 137 transitions, 294 flow. Second operand 3 states and 472 transitions. [2022-11-18 19:50:59,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 136 transitions, 312 flow [2022-11-18 19:50:59,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 136 transitions, 305 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 19:50:59,215 INFO L231 Difference]: Finished difference. Result has 142 places, 0 transitions, 0 flow [2022-11-18 19:50:59,216 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=142, PETRI_TRANSITIONS=0} [2022-11-18 19:50:59,217 INFO L288 CegarLoopForPetriNet]: 171 programPoint places, -29 predicate places. [2022-11-18 19:50:59,217 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 0 transitions, 0 flow [2022-11-18 19:50:59,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 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) [2022-11-18 19:50:59,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (50 of 51 remaining) [2022-11-18 19:50:59,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (49 of 51 remaining) [2022-11-18 19:50:59,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (48 of 51 remaining) [2022-11-18 19:50:59,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (47 of 51 remaining) [2022-11-18 19:50:59,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (46 of 51 remaining) [2022-11-18 19:50:59,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (45 of 51 remaining) [2022-11-18 19:50:59,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (44 of 51 remaining) [2022-11-18 19:50:59,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (43 of 51 remaining) [2022-11-18 19:50:59,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (42 of 51 remaining) [2022-11-18 19:50:59,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (41 of 51 remaining) [2022-11-18 19:50:59,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (40 of 51 remaining) [2022-11-18 19:50:59,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (39 of 51 remaining) [2022-11-18 19:50:59,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (38 of 51 remaining) [2022-11-18 19:50:59,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (37 of 51 remaining) [2022-11-18 19:50:59,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (36 of 51 remaining) [2022-11-18 19:50:59,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (35 of 51 remaining) [2022-11-18 19:50:59,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (34 of 51 remaining) [2022-11-18 19:50:59,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (33 of 51 remaining) [2022-11-18 19:50:59,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (32 of 51 remaining) [2022-11-18 19:50:59,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (31 of 51 remaining) [2022-11-18 19:50:59,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (30 of 51 remaining) [2022-11-18 19:50:59,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (29 of 51 remaining) [2022-11-18 19:50:59,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (28 of 51 remaining) [2022-11-18 19:50:59,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (27 of 51 remaining) [2022-11-18 19:50:59,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (26 of 51 remaining) [2022-11-18 19:50:59,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (25 of 51 remaining) [2022-11-18 19:50:59,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (24 of 51 remaining) [2022-11-18 19:50:59,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (23 of 51 remaining) [2022-11-18 19:50:59,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (22 of 51 remaining) [2022-11-18 19:50:59,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (21 of 51 remaining) [2022-11-18 19:50:59,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 51 remaining) [2022-11-18 19:50:59,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 51 remaining) [2022-11-18 19:50:59,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (18 of 51 remaining) [2022-11-18 19:50:59,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (17 of 51 remaining) [2022-11-18 19:50:59,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (16 of 51 remaining) [2022-11-18 19:50:59,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (15 of 51 remaining) [2022-11-18 19:50:59,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (14 of 51 remaining) [2022-11-18 19:50:59,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (13 of 51 remaining) [2022-11-18 19:50:59,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (12 of 51 remaining) [2022-11-18 19:50:59,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (11 of 51 remaining) [2022-11-18 19:50:59,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 51 remaining) [2022-11-18 19:50:59,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 51 remaining) [2022-11-18 19:50:59,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 51 remaining) [2022-11-18 19:50:59,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 51 remaining) [2022-11-18 19:50:59,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (6 of 51 remaining) [2022-11-18 19:50:59,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (5 of 51 remaining) [2022-11-18 19:50:59,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (4 of 51 remaining) [2022-11-18 19:50:59,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (3 of 51 remaining) [2022-11-18 19:50:59,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (2 of 51 remaining) [2022-11-18 19:50:59,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (1 of 51 remaining) [2022-11-18 19:50:59,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (0 of 51 remaining) [2022-11-18 19:50:59,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 19:50:59,238 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:59,244 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 19:50:59,245 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:50:59,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:50:59 BasicIcfg [2022-11-18 19:50:59,253 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:50:59,253 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:50:59,254 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:50:59,254 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:50:59,254 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:50:55" (3/4) ... [2022-11-18 19:50:59,257 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 19:50:59,263 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-18 19:50:59,263 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-18 19:50:59,270 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-18 19:50:59,270 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 19:50:59,271 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 19:50:59,271 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 19:50:59,324 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8c8aee4-9d8c-4c07-b49b-0da8787e06ee/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:50:59,324 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:50:59,325 INFO L158 Benchmark]: Toolchain (without parser) took 5778.94ms. Allocated memory was 140.5MB in the beginning and 237.0MB in the end (delta: 96.5MB). Free memory was 102.1MB in the beginning and 108.5MB in the end (delta: -6.4MB). Peak memory consumption was 90.6MB. Max. memory is 16.1GB. [2022-11-18 19:50:59,326 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 140.5MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:50:59,326 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.88ms. Allocated memory is still 140.5MB. Free memory was 101.9MB in the beginning and 112.3MB in the end (delta: -10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:50:59,326 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.37ms. Allocated memory is still 140.5MB. Free memory was 112.3MB in the beginning and 110.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:50:59,327 INFO L158 Benchmark]: Boogie Preprocessor took 64.37ms. Allocated memory is still 140.5MB. Free memory was 110.2MB in the beginning and 108.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:50:59,327 INFO L158 Benchmark]: RCFGBuilder took 1126.70ms. Allocated memory was 140.5MB in the beginning and 195.0MB in the end (delta: 54.5MB). Free memory was 108.1MB in the beginning and 166.1MB in the end (delta: -58.0MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. [2022-11-18 19:50:59,328 INFO L158 Benchmark]: TraceAbstraction took 4118.38ms. Allocated memory was 195.0MB in the beginning and 237.0MB in the end (delta: 41.9MB). Free memory was 166.1MB in the beginning and 111.6MB in the end (delta: 54.5MB). Peak memory consumption was 95.4MB. Max. memory is 16.1GB. [2022-11-18 19:50:59,328 INFO L158 Benchmark]: Witness Printer took 70.85ms. Allocated memory is still 237.0MB. Free memory was 111.6MB in the beginning and 108.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 19:50:59,334 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 140.5MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.88ms. Allocated memory is still 140.5MB. Free memory was 101.9MB in the beginning and 112.3MB in the end (delta: -10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.37ms. Allocated memory is still 140.5MB. Free memory was 112.3MB in the beginning and 110.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.37ms. Allocated memory is still 140.5MB. Free memory was 110.2MB in the beginning and 108.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1126.70ms. Allocated memory was 140.5MB in the beginning and 195.0MB in the end (delta: 54.5MB). Free memory was 108.1MB in the beginning and 166.1MB in the end (delta: -58.0MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4118.38ms. Allocated memory was 195.0MB in the beginning and 237.0MB in the end (delta: 41.9MB). Free memory was 166.1MB in the beginning and 111.6MB in the end (delta: 54.5MB). Peak memory consumption was 95.4MB. Max. memory is 16.1GB. * Witness Printer took 70.85ms. Allocated memory is still 237.0MB. Free memory was 111.6MB in the beginning and 108.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 219 locations, 51 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 86 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 306 IncrementalHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 86 mSDtfsCounter, 306 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=356occurred in iteration=0, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 692 NumberOfCodeBlocks, 692 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 681 ConstructedInterpolants, 0 QuantifiedInterpolants, 974 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 30 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 19:50:59,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8c8aee4-9d8c-4c07-b49b-0da8787e06ee/bin/uautomizer-TMbwUNV5ro/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 Result: TRUE