./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ee02a-f2e0-4770-a49b-074ab01cf518/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ee02a-f2e0-4770-a49b-074ab01cf518/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ee02a-f2e0-4770-a49b-074ab01cf518/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ee02a-f2e0-4770-a49b-074ab01cf518/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ee02a-f2e0-4770-a49b-074ab01cf518/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ee02a-f2e0-4770-a49b-074ab01cf518/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:59:05,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:59:05,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:59:05,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:59:05,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:59:05,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:59:05,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:59:05,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:59:05,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:59:05,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:59:05,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:59:05,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:59:05,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:59:05,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:59:05,240 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:59:05,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:59:05,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:59:05,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:59:05,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:59:05,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:59:05,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:59:05,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:59:05,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:59:05,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:59:05,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:59:05,277 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:59:05,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:59:05,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:59:05,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:59:05,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:59:05,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:59:05,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:59:05,289 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:59:05,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:59:05,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:59:05,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:59:05,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:59:05,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:59:05,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:59:05,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:59:05,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:59:05,299 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ee02a-f2e0-4770-a49b-074ab01cf518/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:59:05,350 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:59:05,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:59:05,351 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:59:05,352 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:59:05,353 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:59:05,353 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:59:05,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:59:05,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:59:05,355 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:59:05,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:59:05,357 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:59:05,358 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:59:05,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:59:05,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:59:05,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:59:05,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:59:05,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:59:05,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:59:05,381 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:59:05,381 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:59:05,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:59:05,382 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:59:05,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:59:05,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:59:05,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:59:05,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:59:05,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:59:05,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:59:05,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:59:05,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:59:05,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:59:05,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:59:05,385 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:59:05,386 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:59:05,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:59:05,386 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_524ee02a-f2e0-4770-a49b-074ab01cf518/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ee02a-f2e0-4770-a49b-074ab01cf518/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 [2022-11-02 20:59:05,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:59:05,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:59:05,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:59:05,855 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:59:05,856 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:59:05,859 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ee02a-f2e0-4770-a49b-074ab01cf518/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i [2022-11-02 20:59:05,944 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ee02a-f2e0-4770-a49b-074ab01cf518/bin/uautomizer-Dbtcem3rbc/data/2984c68ad/f0da3f93b5b74e46a180c2e1cc79ba40/FLAG63178e302 [2022-11-02 20:59:06,630 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:59:06,631 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ee02a-f2e0-4770-a49b-074ab01cf518/sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i [2022-11-02 20:59:06,662 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ee02a-f2e0-4770-a49b-074ab01cf518/bin/uautomizer-Dbtcem3rbc/data/2984c68ad/f0da3f93b5b74e46a180c2e1cc79ba40/FLAG63178e302 [2022-11-02 20:59:06,814 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ee02a-f2e0-4770-a49b-074ab01cf518/bin/uautomizer-Dbtcem3rbc/data/2984c68ad/f0da3f93b5b74e46a180c2e1cc79ba40 [2022-11-02 20:59:06,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:59:06,819 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:59:06,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:59:06,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:59:06,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:59:06,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:59:06" (1/1) ... [2022-11-02 20:59:06,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@652a10bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:06, skipping insertion in model container [2022-11-02 20:59:06,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:59:06" (1/1) ... [2022-11-02 20:59:06,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:59:06,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:59:07,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:59:07,768 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:59:07,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:59:07,944 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:59:07,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:07 WrapperNode [2022-11-02 20:59:07,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:59:07,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:59:07,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:59:07,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:59:07,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:07" (1/1) ... [2022-11-02 20:59:07,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:07" (1/1) ... [2022-11-02 20:59:08,011 INFO L138 Inliner]: procedures = 365, calls = 30, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 68 [2022-11-02 20:59:08,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:59:08,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:59:08,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:59:08,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:59:08,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:07" (1/1) ... [2022-11-02 20:59:08,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:07" (1/1) ... [2022-11-02 20:59:08,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:07" (1/1) ... [2022-11-02 20:59:08,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:07" (1/1) ... [2022-11-02 20:59:08,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:07" (1/1) ... [2022-11-02 20:59:08,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:07" (1/1) ... [2022-11-02 20:59:08,048 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:07" (1/1) ... [2022-11-02 20:59:08,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:07" (1/1) ... [2022-11-02 20:59:08,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:59:08,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:59:08,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:59:08,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:59:08,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:07" (1/1) ... [2022-11-02 20:59:08,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:59:08,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ee02a-f2e0-4770-a49b-074ab01cf518/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:59:08,113 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ee02a-f2e0-4770-a49b-074ab01cf518/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:59:08,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ee02a-f2e0-4770-a49b-074ab01cf518/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:59:08,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:59:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:59:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:59:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:59:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:59:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:59:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:59:08,160 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 20:59:08,160 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 20:59:08,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:59:08,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:59:08,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:59:08,162 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:59:08,316 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:59:08,322 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:59:08,714 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:59:08,723 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:59:08,734 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:59:08,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:59:08 BoogieIcfgContainer [2022-11-02 20:59:08,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:59:08,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:59:08,740 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:59:08,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:59:08,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:59:06" (1/3) ... [2022-11-02 20:59:08,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f2a554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:59:08, skipping insertion in model container [2022-11-02 20:59:08,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:07" (2/3) ... [2022-11-02 20:59:08,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f2a554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:59:08, skipping insertion in model container [2022-11-02 20:59:08,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:59:08" (3/3) ... [2022-11-02 20:59:08,752 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_26-malloc_struct.i [2022-11-02 20:59:08,765 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:59:08,797 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:59:08,797 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-02 20:59:08,797 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:59:08,931 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:59:09,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 107 transitions, 219 flow [2022-11-02 20:59:09,100 INFO L130 PetriNetUnfolder]: 0/106 cut-off events. [2022-11-02 20:59:09,101 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:59:09,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 106 events. 0/106 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-02 20:59:09,103 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 107 transitions, 219 flow [2022-11-02 20:59:09,113 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 110 places, 106 transitions, 215 flow [2022-11-02 20:59:09,139 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:59:09,149 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;@4d3d60d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:59:09,149 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-02 20:59:09,182 INFO L130 PetriNetUnfolder]: 0/32 cut-off events. [2022-11-02 20:59:09,183 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:59:09,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:59:09,184 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:59:09,185 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-02 20:59:09,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:59:09,193 INFO L85 PathProgramCache]: Analyzing trace with hash 670265562, now seen corresponding path program 1 times [2022-11-02 20:59:09,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:59:09,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443620070] [2022-11-02 20:59:09,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:59:09,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:59:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:09,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:59:09,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:59:09,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443620070] [2022-11-02 20:59:09,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443620070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:59:09,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:59:09,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:59:09,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191078371] [2022-11-02 20:59:09,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:59:09,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:59:09,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:59:09,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:59:09,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:59:09,681 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 107 [2022-11-02 20:59:09,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 106 transitions, 215 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:09,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:59:09,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 107 [2022-11-02 20:59:09,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:59:09,902 INFO L130 PetriNetUnfolder]: 18/282 cut-off events. [2022-11-02 20:59:09,902 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:59:09,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 282 events. 18/282 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1114 event pairs, 18 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 284. Up to 53 conditions per place. [2022-11-02 20:59:09,911 INFO L137 encePairwiseOnDemand]: 104/107 looper letters, 16 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2022-11-02 20:59:09,911 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 105 transitions, 249 flow [2022-11-02 20:59:09,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:59:09,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:59:09,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2022-11-02 20:59:09,931 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.881619937694704 [2022-11-02 20:59:09,932 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 283 transitions. [2022-11-02 20:59:09,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 283 transitions. [2022-11-02 20:59:09,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:59:09,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 283 transitions. [2022-11-02 20:59:09,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:09,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:09,959 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:09,962 INFO L175 Difference]: Start difference. First operand has 110 places, 106 transitions, 215 flow. Second operand 3 states and 283 transitions. [2022-11-02 20:59:09,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 105 transitions, 249 flow [2022-11-02 20:59:09,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 105 transitions, 248 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:59:09,972 INFO L231 Difference]: Finished difference. Result has 110 places, 105 transitions, 216 flow [2022-11-02 20:59:09,974 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=110, PETRI_TRANSITIONS=105} [2022-11-02 20:59:09,978 INFO L287 CegarLoopForPetriNet]: 110 programPoint places, 0 predicate places. [2022-11-02 20:59:09,978 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 105 transitions, 216 flow [2022-11-02 20:59:09,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:09,979 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:59:09,979 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:59:09,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:59:09,980 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-02 20:59:09,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:59:09,981 INFO L85 PathProgramCache]: Analyzing trace with hash 756627061, now seen corresponding path program 1 times [2022-11-02 20:59:09,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:59:09,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539372975] [2022-11-02 20:59:09,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:59:09,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:59:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:10,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:59:10,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:59:10,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539372975] [2022-11-02 20:59:10,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539372975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:59:10,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:59:10,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:59:10,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283905292] [2022-11-02 20:59:10,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:59:10,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:59:10,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:59:10,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:59:10,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:59:10,103 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 107 [2022-11-02 20:59:10,104 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 105 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:10,104 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:59:10,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 107 [2022-11-02 20:59:10,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:59:10,223 INFO L130 PetriNetUnfolder]: 8/222 cut-off events. [2022-11-02 20:59:10,224 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:59:10,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 222 events. 8/222 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 705 event pairs, 8 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 214. Up to 25 conditions per place. [2022-11-02 20:59:10,226 INFO L137 encePairwiseOnDemand]: 102/107 looper letters, 10 selfloop transitions, 1 changer transitions 0/101 dead transitions. [2022-11-02 20:59:10,226 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 101 transitions, 230 flow [2022-11-02 20:59:10,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:59:10,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:59:10,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2022-11-02 20:59:10,229 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.897196261682243 [2022-11-02 20:59:10,229 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 288 transitions. [2022-11-02 20:59:10,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 288 transitions. [2022-11-02 20:59:10,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:59:10,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 288 transitions. [2022-11-02 20:59:10,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:10,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:10,234 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:10,234 INFO L175 Difference]: Start difference. First operand has 110 places, 105 transitions, 216 flow. Second operand 3 states and 288 transitions. [2022-11-02 20:59:10,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 101 transitions, 230 flow [2022-11-02 20:59:10,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 101 transitions, 226 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:59:10,238 INFO L231 Difference]: Finished difference. Result has 106 places, 101 transitions, 206 flow [2022-11-02 20:59:10,238 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=106, PETRI_TRANSITIONS=101} [2022-11-02 20:59:10,239 INFO L287 CegarLoopForPetriNet]: 110 programPoint places, -4 predicate places. [2022-11-02 20:59:10,240 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 101 transitions, 206 flow [2022-11-02 20:59:10,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:10,244 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:59:10,244 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:59:10,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:59:10,245 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-02 20:59:10,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:59:10,247 INFO L85 PathProgramCache]: Analyzing trace with hash 829589289, now seen corresponding path program 1 times [2022-11-02 20:59:10,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:59:10,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702452302] [2022-11-02 20:59:10,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:59:10,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:59:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:11,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:59:11,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:59:11,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702452302] [2022-11-02 20:59:11,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702452302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:59:11,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:59:11,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:59:11,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521397218] [2022-11-02 20:59:11,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:59:11,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:59:11,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:59:11,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:59:11,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:59:11,063 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 107 [2022-11-02 20:59:11,064 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 101 transitions, 206 flow. Second operand has 6 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:11,064 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:59:11,064 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 107 [2022-11-02 20:59:11,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:59:11,630 INFO L130 PetriNetUnfolder]: 302/920 cut-off events. [2022-11-02 20:59:11,630 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:59:11,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1569 conditions, 920 events. 302/920 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 5142 event pairs, 143 based on Foata normal form. 0/821 useless extension candidates. Maximal degree in co-relation 1527. Up to 452 conditions per place. [2022-11-02 20:59:11,637 INFO L137 encePairwiseOnDemand]: 91/107 looper letters, 64 selfloop transitions, 41 changer transitions 0/173 dead transitions. [2022-11-02 20:59:11,637 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 173 transitions, 560 flow [2022-11-02 20:59:11,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:59:11,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:59:11,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 550 transitions. [2022-11-02 20:59:11,641 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8566978193146417 [2022-11-02 20:59:11,641 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 550 transitions. [2022-11-02 20:59:11,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 550 transitions. [2022-11-02 20:59:11,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:59:11,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 550 transitions. [2022-11-02 20:59:11,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.66666666666667) internal successors, (550), 6 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:11,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:11,646 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:11,647 INFO L175 Difference]: Start difference. First operand has 106 places, 101 transitions, 206 flow. Second operand 6 states and 550 transitions. [2022-11-02 20:59:11,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 173 transitions, 560 flow [2022-11-02 20:59:11,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 173 transitions, 559 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:59:11,651 INFO L231 Difference]: Finished difference. Result has 114 places, 143 transitions, 463 flow [2022-11-02 20:59:11,652 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=463, PETRI_PLACES=114, PETRI_TRANSITIONS=143} [2022-11-02 20:59:11,653 INFO L287 CegarLoopForPetriNet]: 110 programPoint places, 4 predicate places. [2022-11-02 20:59:11,653 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 143 transitions, 463 flow [2022-11-02 20:59:11,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:11,654 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:59:11,654 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:59:11,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:59:11,654 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-02 20:59:11,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:59:11,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1778397319, now seen corresponding path program 1 times [2022-11-02 20:59:11,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:59:11,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137721930] [2022-11-02 20:59:11,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:59:11,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:59:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:12,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:59:12,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:59:12,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137721930] [2022-11-02 20:59:12,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137721930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:59:12,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:59:12,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:59:12,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262523520] [2022-11-02 20:59:12,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:59:12,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:59:12,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:59:12,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:59:12,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:59:12,103 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 107 [2022-11-02 20:59:12,104 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 143 transitions, 463 flow. Second operand has 6 states, 6 states have (on average 77.66666666666667) internal successors, (466), 6 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) [2022-11-02 20:59:12,104 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:59:12,104 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 107 [2022-11-02 20:59:12,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:59:12,822 INFO L130 PetriNetUnfolder]: 487/1491 cut-off events. [2022-11-02 20:59:12,822 INFO L131 PetriNetUnfolder]: For 428/442 co-relation queries the response was YES. [2022-11-02 20:59:12,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3456 conditions, 1491 events. 487/1491 cut-off events. For 428/442 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 9993 event pairs, 40 based on Foata normal form. 24/1432 useless extension candidates. Maximal degree in co-relation 3410. Up to 430 conditions per place. [2022-11-02 20:59:12,834 INFO L137 encePairwiseOnDemand]: 96/107 looper letters, 151 selfloop transitions, 32 changer transitions 0/257 dead transitions. [2022-11-02 20:59:12,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 257 transitions, 1232 flow [2022-11-02 20:59:12,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:59:12,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:59:12,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 584 transitions. [2022-11-02 20:59:12,837 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9096573208722741 [2022-11-02 20:59:12,837 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 584 transitions. [2022-11-02 20:59:12,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 584 transitions. [2022-11-02 20:59:12,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:59:12,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 584 transitions. [2022-11-02 20:59:12,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.33333333333333) internal successors, (584), 6 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:12,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:12,842 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:12,842 INFO L175 Difference]: Start difference. First operand has 114 places, 143 transitions, 463 flow. Second operand 6 states and 584 transitions. [2022-11-02 20:59:12,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 257 transitions, 1232 flow [2022-11-02 20:59:12,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 257 transitions, 1232 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:59:12,852 INFO L231 Difference]: Finished difference. Result has 124 places, 173 transitions, 765 flow [2022-11-02 20:59:12,853 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=765, PETRI_PLACES=124, PETRI_TRANSITIONS=173} [2022-11-02 20:59:12,854 INFO L287 CegarLoopForPetriNet]: 110 programPoint places, 14 predicate places. [2022-11-02 20:59:12,854 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 173 transitions, 765 flow [2022-11-02 20:59:12,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.66666666666667) internal successors, (466), 6 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) [2022-11-02 20:59:12,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:59:12,855 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:59:12,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:59:12,855 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-02 20:59:12,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:59:12,856 INFO L85 PathProgramCache]: Analyzing trace with hash 2084591366, now seen corresponding path program 1 times [2022-11-02 20:59:12,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:59:12,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061718409] [2022-11-02 20:59:12,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:59:12,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:59:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:12,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:59:12,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:59:12,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061718409] [2022-11-02 20:59:12,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061718409] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:59:12,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:59:12,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:59:12,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646866596] [2022-11-02 20:59:12,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:59:12,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:59:12,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:59:12,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:59:12,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:59:12,974 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 107 [2022-11-02 20:59:12,974 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 173 transitions, 765 flow. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:12,975 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:59:12,975 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 107 [2022-11-02 20:59:12,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:59:13,036 INFO L130 PetriNetUnfolder]: 39/294 cut-off events. [2022-11-02 20:59:13,037 INFO L131 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2022-11-02 20:59:13,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 294 events. 39/294 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 984 event pairs, 4 based on Foata normal form. 2/282 useless extension candidates. Maximal degree in co-relation 487. Up to 64 conditions per place. [2022-11-02 20:59:13,039 INFO L137 encePairwiseOnDemand]: 103/107 looper letters, 7 selfloop transitions, 4 changer transitions 0/122 dead transitions. [2022-11-02 20:59:13,039 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 122 transitions, 409 flow [2022-11-02 20:59:13,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:59:13,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:59:13,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2022-11-02 20:59:13,041 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9376947040498442 [2022-11-02 20:59:13,041 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 301 transitions. [2022-11-02 20:59:13,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 301 transitions. [2022-11-02 20:59:13,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:59:13,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 301 transitions. [2022-11-02 20:59:13,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:13,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:13,044 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:13,044 INFO L175 Difference]: Start difference. First operand has 124 places, 173 transitions, 765 flow. Second operand 3 states and 301 transitions. [2022-11-02 20:59:13,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 122 transitions, 409 flow [2022-11-02 20:59:13,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 122 transitions, 367 flow, removed 13 selfloop flow, removed 8 redundant places. [2022-11-02 20:59:13,049 INFO L231 Difference]: Finished difference. Result has 117 places, 122 transitions, 353 flow [2022-11-02 20:59:13,050 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=353, PETRI_PLACES=117, PETRI_TRANSITIONS=122} [2022-11-02 20:59:13,051 INFO L287 CegarLoopForPetriNet]: 110 programPoint places, 7 predicate places. [2022-11-02 20:59:13,051 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 122 transitions, 353 flow [2022-11-02 20:59:13,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:13,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:59:13,052 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:59:13,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:59:13,052 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-02 20:59:13,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:59:13,053 INFO L85 PathProgramCache]: Analyzing trace with hash -504654480, now seen corresponding path program 1 times [2022-11-02 20:59:13,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:59:13,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115609147] [2022-11-02 20:59:13,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:59:13,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:59:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:13,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:59:13,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:59:13,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115609147] [2022-11-02 20:59:13,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115609147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:59:13,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:59:13,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:59:13,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707475660] [2022-11-02 20:59:13,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:59:13,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:59:13,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:59:13,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:59:13,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:59:13,416 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 107 [2022-11-02 20:59:13,417 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 122 transitions, 353 flow. Second operand has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:13,417 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:59:13,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 107 [2022-11-02 20:59:13,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:59:13,758 INFO L130 PetriNetUnfolder]: 157/666 cut-off events. [2022-11-02 20:59:13,758 INFO L131 PetriNetUnfolder]: For 144/168 co-relation queries the response was YES. [2022-11-02 20:59:13,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1376 conditions, 666 events. 157/666 cut-off events. For 144/168 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3552 event pairs, 22 based on Foata normal form. 0/632 useless extension candidates. Maximal degree in co-relation 1328. Up to 262 conditions per place. [2022-11-02 20:59:13,762 INFO L137 encePairwiseOnDemand]: 93/107 looper letters, 57 selfloop transitions, 47 changer transitions 4/181 dead transitions. [2022-11-02 20:59:13,763 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 181 transitions, 780 flow [2022-11-02 20:59:13,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:59:13,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:59:13,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 549 transitions. [2022-11-02 20:59:13,765 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8551401869158879 [2022-11-02 20:59:13,765 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 549 transitions. [2022-11-02 20:59:13,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 549 transitions. [2022-11-02 20:59:13,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:59:13,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 549 transitions. [2022-11-02 20:59:13,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.5) internal successors, (549), 6 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:13,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:13,769 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:13,770 INFO L175 Difference]: Start difference. First operand has 117 places, 122 transitions, 353 flow. Second operand 6 states and 549 transitions. [2022-11-02 20:59:13,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 181 transitions, 780 flow [2022-11-02 20:59:13,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 181 transitions, 776 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:59:13,775 INFO L231 Difference]: Finished difference. Result has 126 places, 164 transitions, 730 flow [2022-11-02 20:59:13,776 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=730, PETRI_PLACES=126, PETRI_TRANSITIONS=164} [2022-11-02 20:59:13,777 INFO L287 CegarLoopForPetriNet]: 110 programPoint places, 16 predicate places. [2022-11-02 20:59:13,777 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 164 transitions, 730 flow [2022-11-02 20:59:13,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:13,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:59:13,778 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:59:13,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:59:13,778 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-02 20:59:13,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:59:13,779 INFO L85 PathProgramCache]: Analyzing trace with hash 219767215, now seen corresponding path program 1 times [2022-11-02 20:59:13,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:59:13,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890206942] [2022-11-02 20:59:13,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:59:13,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:59:13,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:14,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:59:14,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:59:14,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890206942] [2022-11-02 20:59:14,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890206942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:59:14,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:59:14,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:59:14,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843572228] [2022-11-02 20:59:14,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:59:14,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:59:14,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:59:14,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:59:14,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:59:14,232 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 107 [2022-11-02 20:59:14,233 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 164 transitions, 730 flow. Second operand has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:14,233 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:59:14,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 107 [2022-11-02 20:59:14,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:59:14,621 INFO L130 PetriNetUnfolder]: 207/813 cut-off events. [2022-11-02 20:59:14,622 INFO L131 PetriNetUnfolder]: For 462/462 co-relation queries the response was YES. [2022-11-02 20:59:14,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2174 conditions, 813 events. 207/813 cut-off events. For 462/462 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4548 event pairs, 34 based on Foata normal form. 0/798 useless extension candidates. Maximal degree in co-relation 2121. Up to 425 conditions per place. [2022-11-02 20:59:14,628 INFO L137 encePairwiseOnDemand]: 96/107 looper letters, 90 selfloop transitions, 26 changer transitions 15/200 dead transitions. [2022-11-02 20:59:14,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 200 transitions, 1198 flow [2022-11-02 20:59:14,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:59:14,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:59:14,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 506 transitions. [2022-11-02 20:59:14,631 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7881619937694704 [2022-11-02 20:59:14,632 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 506 transitions. [2022-11-02 20:59:14,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 506 transitions. [2022-11-02 20:59:14,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:59:14,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 506 transitions. [2022-11-02 20:59:14,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.33333333333333) internal successors, (506), 6 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:14,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:14,638 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:14,638 INFO L175 Difference]: Start difference. First operand has 126 places, 164 transitions, 730 flow. Second operand 6 states and 506 transitions. [2022-11-02 20:59:14,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 200 transitions, 1198 flow [2022-11-02 20:59:14,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 200 transitions, 1180 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-02 20:59:14,651 INFO L231 Difference]: Finished difference. Result has 136 places, 181 transitions, 931 flow [2022-11-02 20:59:14,651 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=712, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=931, PETRI_PLACES=136, PETRI_TRANSITIONS=181} [2022-11-02 20:59:14,652 INFO L287 CegarLoopForPetriNet]: 110 programPoint places, 26 predicate places. [2022-11-02 20:59:14,652 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 181 transitions, 931 flow [2022-11-02 20:59:14,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:14,654 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:59:14,654 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:59:14,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:59:14,655 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-02 20:59:14,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:59:14,655 INFO L85 PathProgramCache]: Analyzing trace with hash -212394230, now seen corresponding path program 1 times [2022-11-02 20:59:14,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:59:14,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722156681] [2022-11-02 20:59:14,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:59:14,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:59:14,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:15,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:59:15,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:59:15,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722156681] [2022-11-02 20:59:15,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722156681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:59:15,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:59:15,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:59:15,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287832052] [2022-11-02 20:59:15,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:59:15,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:59:15,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:59:15,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:59:15,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:59:15,629 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 107 [2022-11-02 20:59:15,630 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 181 transitions, 931 flow. Second operand has 10 states, 10 states have (on average 71.3) internal successors, (713), 10 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:15,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:59:15,631 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 107 [2022-11-02 20:59:15,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:59:16,021 INFO L130 PetriNetUnfolder]: 198/760 cut-off events. [2022-11-02 20:59:16,021 INFO L131 PetriNetUnfolder]: For 599/603 co-relation queries the response was YES. [2022-11-02 20:59:16,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2319 conditions, 760 events. 198/760 cut-off events. For 599/603 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4169 event pairs, 35 based on Foata normal form. 11/766 useless extension candidates. Maximal degree in co-relation 2257. Up to 294 conditions per place. [2022-11-02 20:59:16,028 INFO L137 encePairwiseOnDemand]: 97/107 looper letters, 118 selfloop transitions, 29 changer transitions 8/219 dead transitions. [2022-11-02 20:59:16,028 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 219 transitions, 1509 flow [2022-11-02 20:59:16,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:59:16,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 20:59:16,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 686 transitions. [2022-11-02 20:59:16,031 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7123572170301142 [2022-11-02 20:59:16,031 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 686 transitions. [2022-11-02 20:59:16,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 686 transitions. [2022-11-02 20:59:16,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:59:16,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 686 transitions. [2022-11-02 20:59:16,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 76.22222222222223) internal successors, (686), 9 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:16,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:16,036 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:16,037 INFO L175 Difference]: Start difference. First operand has 136 places, 181 transitions, 931 flow. Second operand 9 states and 686 transitions. [2022-11-02 20:59:16,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 219 transitions, 1509 flow [2022-11-02 20:59:16,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 219 transitions, 1443 flow, removed 25 selfloop flow, removed 2 redundant places. [2022-11-02 20:59:16,051 INFO L231 Difference]: Finished difference. Result has 141 places, 180 transitions, 919 flow [2022-11-02 20:59:16,051 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=861, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=919, PETRI_PLACES=141, PETRI_TRANSITIONS=180} [2022-11-02 20:59:16,052 INFO L287 CegarLoopForPetriNet]: 110 programPoint places, 31 predicate places. [2022-11-02 20:59:16,052 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 180 transitions, 919 flow [2022-11-02 20:59:16,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 71.3) internal successors, (713), 10 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:16,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:59:16,053 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:59:16,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:59:16,053 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-02 20:59:16,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:59:16,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1901123288, now seen corresponding path program 1 times [2022-11-02 20:59:16,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:59:16,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084022015] [2022-11-02 20:59:16,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:59:16,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:59:16,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:16,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:59:16,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:59:16,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084022015] [2022-11-02 20:59:16,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084022015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:59:16,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:59:16,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:59:16,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814987753] [2022-11-02 20:59:16,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:59:16,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:59:16,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:59:16,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:59:16,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:59:16,943 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 107 [2022-11-02 20:59:16,945 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 180 transitions, 919 flow. Second operand has 10 states, 10 states have (on average 73.2) internal successors, (732), 10 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:16,945 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:59:16,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 107 [2022-11-02 20:59:16,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:59:17,674 INFO L130 PetriNetUnfolder]: 221/849 cut-off events. [2022-11-02 20:59:17,674 INFO L131 PetriNetUnfolder]: For 833/837 co-relation queries the response was YES. [2022-11-02 20:59:17,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2641 conditions, 849 events. 221/849 cut-off events. For 833/837 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4930 event pairs, 24 based on Foata normal form. 19/867 useless extension candidates. Maximal degree in co-relation 2577. Up to 161 conditions per place. [2022-11-02 20:59:17,681 INFO L137 encePairwiseOnDemand]: 92/107 looper letters, 127 selfloop transitions, 58 changer transitions 6/258 dead transitions. [2022-11-02 20:59:17,681 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 258 transitions, 1811 flow [2022-11-02 20:59:17,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:59:17,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 20:59:17,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 742 transitions. [2022-11-02 20:59:17,684 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.770508826583593 [2022-11-02 20:59:17,684 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 742 transitions. [2022-11-02 20:59:17,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 742 transitions. [2022-11-02 20:59:17,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:59:17,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 742 transitions. [2022-11-02 20:59:17,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.44444444444444) internal successors, (742), 9 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:17,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:17,691 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 107.0) internal successors, (1070), 10 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:17,692 INFO L175 Difference]: Start difference. First operand has 141 places, 180 transitions, 919 flow. Second operand 9 states and 742 transitions. [2022-11-02 20:59:17,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 258 transitions, 1811 flow [2022-11-02 20:59:17,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 258 transitions, 1713 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-02 20:59:17,706 INFO L231 Difference]: Finished difference. Result has 145 places, 197 transitions, 1203 flow [2022-11-02 20:59:17,707 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=861, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1203, PETRI_PLACES=145, PETRI_TRANSITIONS=197} [2022-11-02 20:59:17,708 INFO L287 CegarLoopForPetriNet]: 110 programPoint places, 35 predicate places. [2022-11-02 20:59:17,708 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 197 transitions, 1203 flow [2022-11-02 20:59:17,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 73.2) internal successors, (732), 10 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:59:17,708 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:59:17,709 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:59:17,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:59:17,709 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-02 20:59:17,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:59:17,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1493032828, now seen corresponding path program 1 times [2022-11-02 20:59:17,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:59:17,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421739125] [2022-11-02 20:59:17,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:59:17,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:59:17,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:59:17,748 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:59:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:59:17,808 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:59:17,809 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:59:17,810 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2022-11-02 20:59:17,813 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-11-02 20:59:17,813 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2022-11-02 20:59:17,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2022-11-02 20:59:17,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-11-02 20:59:17,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2022-11-02 20:59:17,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-11-02 20:59:17,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2022-11-02 20:59:17,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2022-11-02 20:59:17,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2022-11-02 20:59:17,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2022-11-02 20:59:17,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-11-02 20:59:17,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-11-02 20:59:17,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-11-02 20:59:17,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:59:17,818 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:59:17,825 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 20:59:17,825 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:59:17,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:59:17 BasicIcfg [2022-11-02 20:59:17,911 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:59:17,911 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:59:17,912 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:59:17,912 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:59:17,912 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:59:08" (3/4) ... [2022-11-02 20:59:17,915 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:59:17,915 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:59:17,916 INFO L158 Benchmark]: Toolchain (without parser) took 11096.69ms. Allocated memory was 127.9MB in the beginning and 195.0MB in the end (delta: 67.1MB). Free memory was 102.0MB in the beginning and 133.0MB in the end (delta: -31.0MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. [2022-11-02 20:59:17,917 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory was 58.5MB in the beginning and 58.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:59:17,917 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1124.29ms. Allocated memory is still 127.9MB. Free memory was 101.6MB in the beginning and 68.0MB in the end (delta: 33.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-02 20:59:17,918 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.59ms. Allocated memory is still 127.9MB. Free memory was 68.0MB in the beginning and 65.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:59:17,918 INFO L158 Benchmark]: Boogie Preprocessor took 41.36ms. Allocated memory is still 127.9MB. Free memory was 65.4MB in the beginning and 63.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:59:17,918 INFO L158 Benchmark]: RCFGBuilder took 682.78ms. Allocated memory is still 127.9MB. Free memory was 63.9MB in the beginning and 48.1MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-02 20:59:17,921 INFO L158 Benchmark]: TraceAbstraction took 9171.13ms. Allocated memory was 127.9MB in the beginning and 195.0MB in the end (delta: 67.1MB). Free memory was 47.1MB in the beginning and 133.0MB in the end (delta: -86.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:59:17,921 INFO L158 Benchmark]: Witness Printer took 3.98ms. Allocated memory is still 195.0MB. Free memory is still 133.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:59:17,925 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory was 58.5MB in the beginning and 58.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1124.29ms. Allocated memory is still 127.9MB. Free memory was 101.6MB in the beginning and 68.0MB in the end (delta: 33.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.59ms. Allocated memory is still 127.9MB. Free memory was 68.0MB in the beginning and 65.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.36ms. Allocated memory is still 127.9MB. Free memory was 65.4MB in the beginning and 63.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 682.78ms. Allocated memory is still 127.9MB. Free memory was 63.9MB in the beginning and 48.1MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9171.13ms. Allocated memory was 127.9MB in the beginning and 195.0MB in the end (delta: 67.1MB). Free memory was 47.1MB in the beginning and 133.0MB in the end (delta: -86.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.98ms. Allocated memory is still 195.0MB. Free memory is still 133.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1245]: Data race detected Data race detected The following path leads to a data race: [L1227] 0 data *d; VAL [d={0:0}] [L1228] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [d={0:0}, m={3:0}] [L1237] 0 pthread_t id; VAL [d={0:0}, id={9:0}, m={3:0}] [L1238] 0 data *z; VAL [d={0:0}, id={9:0}, m={3:0}] [L1239] 0 d = malloc(sizeof(data)) VAL [d={-2:0}, d = malloc(sizeof(data))=105, id={9:0}, m={3:0}, malloc(sizeof(data))={-2:0}] [L1240] 0 z = d VAL [d={-2:0}, id={9:0}, m={3:0}, z={-2:0}] [L1241] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, d={-2:0}, id={9:0}, m={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, z={-2:0}] [L1243] EXPR 0 d->x VAL [arg={0:0}, d={-2:0}, d->x=104, id={9:0}, m={3:0}, z={-2:0}] [L1243] 0 printf("%d\n",d->x) VAL [arg={0:0}, d={-2:0}, d->x=104, id={9:0}, m={3:0}, z={-2:0}] [L1231] EXPR 1 d->x VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={3:0}] [L1231] 1 d->x = 3 VAL [arg={0:0}, arg={0:0}, d={-2:0}, d->x = 3=101, m={3:0}] [L1245] EXPR 0 z->y VAL [arg={0:0}, arg={0:0}, d={-2:0}, d->x = 3=101, id={9:0}, m={3:0}, z={-2:0}, z->y=102] [L1231] 1 d->x = 3 VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={3:0}] [L1232] EXPR 1 d->y VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={3:0}] [L1232] 1 d->y = 8 VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={3:0}] [L1232] 1 d->y = 8 VAL [arg={0:0}, arg={0:0}, d={-2:0}, d->y = 8=103, m={3:0}] [L1245] 0 printf("%d\n",z->y) VAL [arg={0:0}, arg={0:0}, d={-2:0}, d->y = 8=103, id={9:0}, m={3:0}, z={-2:0}, z->y=102] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: d->x = 3 [1231] * C: d->x = 3 [1231] * C: d = malloc(sizeof(data)) [1239] * C: d->x = 3 [1231] * C: d->x = 3 [1231] * C: d->y = 8 [1232] and C: printf("%d\n",z->y) [1245] - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 140 locations, 14 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: 8.8s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 217 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 217 mSDsluCounter, 159 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 179 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1412 IncrementalHoareTripleChecker+Invalid, 1591 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 179 mSolverCounterUnsat, 138 mSDtfsCounter, 1412 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1203occurred in iteration=9, InterpolantAutomatonStates: 51, 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, 4.1s InterpolantComputationTime, 596 NumberOfCodeBlocks, 596 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 505 ConstructedInterpolants, 0 QuantifiedInterpolants, 1831 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-02 20:59:18,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_524ee02a-f2e0-4770-a49b-074ab01cf518/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE