./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d024c4bd-60e3-4fa2-abc5-8e688dbfa7e1/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d024c4bd-60e3-4fa2-abc5-8e688dbfa7e1/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d024c4bd-60e3-4fa2-abc5-8e688dbfa7e1/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d024c4bd-60e3-4fa2-abc5-8e688dbfa7e1/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d024c4bd-60e3-4fa2-abc5-8e688dbfa7e1/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d024c4bd-60e3-4fa2-abc5-8e688dbfa7e1/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 676d96662ae61a9d27f232e6ef1f1837cf504ffa210b7be2fd6286f04a0fe098 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:41:06,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:41:06,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:41:06,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:41:06,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:41:06,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:41:06,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:41:06,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:41:06,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:41:06,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:41:06,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:41:06,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:41:06,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:41:06,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:41:06,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:41:06,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:41:06,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:41:06,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:41:06,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:41:06,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:41:06,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:41:06,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:41:06,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:41:06,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:41:06,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:41:06,981 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:41:06,981 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:41:06,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:41:06,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:41:06,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:41:06,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:41:06,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:41:06,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:41:06,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:41:06,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:41:06,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:41:06,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:41:06,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:41:06,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:41:06,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:41:06,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:41:06,998 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d024c4bd-60e3-4fa2-abc5-8e688dbfa7e1/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:41:07,027 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:41:07,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:41:07,028 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:41:07,028 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:41:07,029 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:41:07,029 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:41:07,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:41:07,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:41:07,030 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:41:07,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:41:07,031 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:41:07,031 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:41:07,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:41:07,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:41:07,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:41:07,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:41:07,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:41:07,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:41:07,033 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:41:07,033 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:41:07,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:41:07,034 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:41:07,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:41:07,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:41:07,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:41:07,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:41:07,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:41:07,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:41:07,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:41:07,036 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:41:07,036 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:41:07,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:41:07,036 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:41:07,037 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:41:07,037 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:41:07,037 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_d024c4bd-60e3-4fa2-abc5-8e688dbfa7e1/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d024c4bd-60e3-4fa2-abc5-8e688dbfa7e1/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 676d96662ae61a9d27f232e6ef1f1837cf504ffa210b7be2fd6286f04a0fe098 [2022-11-16 11:41:07,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:41:07,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:41:07,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:41:07,443 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:41:07,447 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:41:07,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d024c4bd-60e3-4fa2-abc5-8e688dbfa7e1/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i [2022-11-16 11:41:07,543 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d024c4bd-60e3-4fa2-abc5-8e688dbfa7e1/bin/uautomizer-tPACEb0tL8/data/edf65bf8e/c484f31b8d7d4796950ef55076ea7662/FLAG0dd7074d3 [2022-11-16 11:41:08,301 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:41:08,302 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d024c4bd-60e3-4fa2-abc5-8e688dbfa7e1/sv-benchmarks/c/goblint-regression/04-mutex_51-mutex_ptr.i [2022-11-16 11:41:08,317 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d024c4bd-60e3-4fa2-abc5-8e688dbfa7e1/bin/uautomizer-tPACEb0tL8/data/edf65bf8e/c484f31b8d7d4796950ef55076ea7662/FLAG0dd7074d3 [2022-11-16 11:41:08,464 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d024c4bd-60e3-4fa2-abc5-8e688dbfa7e1/bin/uautomizer-tPACEb0tL8/data/edf65bf8e/c484f31b8d7d4796950ef55076ea7662 [2022-11-16 11:41:08,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:41:08,473 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:41:08,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:41:08,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:41:08,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:41:08,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:41:08" (1/1) ... [2022-11-16 11:41:08,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9756354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:08, skipping insertion in model container [2022-11-16 11:41:08,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:41:08" (1/1) ... [2022-11-16 11:41:08,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:41:08,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:41:09,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:41:09,373 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:41:09,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:41:09,511 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:41:09,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:09 WrapperNode [2022-11-16 11:41:09,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:41:09,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:41:09,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:41:09,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:41:09,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:09" (1/1) ... [2022-11-16 11:41:09,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:09" (1/1) ... [2022-11-16 11:41:09,616 INFO L138 Inliner]: procedures = 262, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 74 [2022-11-16 11:41:09,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:41:09,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:41:09,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:41:09,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:41:09,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:09" (1/1) ... [2022-11-16 11:41:09,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:09" (1/1) ... [2022-11-16 11:41:09,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:09" (1/1) ... [2022-11-16 11:41:09,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:09" (1/1) ... [2022-11-16 11:41:09,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:09" (1/1) ... [2022-11-16 11:41:09,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:09" (1/1) ... [2022-11-16 11:41:09,676 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:09" (1/1) ... [2022-11-16 11:41:09,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:09" (1/1) ... [2022-11-16 11:41:09,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:41:09,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:41:09,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:41:09,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:41:09,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:09" (1/1) ... [2022-11-16 11:41:09,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:41:09,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d024c4bd-60e3-4fa2-abc5-8e688dbfa7e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:41:09,747 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d024c4bd-60e3-4fa2-abc5-8e688dbfa7e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:41:09,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d024c4bd-60e3-4fa2-abc5-8e688dbfa7e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:41:09,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:41:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:41:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:41:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:41:09,824 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:41:09,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:41:09,824 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 11:41:09,824 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 11:41:09,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:41:09,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:41:09,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:41:09,827 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:41:10,079 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:41:10,082 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:41:10,535 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:41:10,545 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:41:10,545 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:41:10,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:41:10 BoogieIcfgContainer [2022-11-16 11:41:10,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:41:10,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:41:10,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:41:10,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:41:10,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:41:08" (1/3) ... [2022-11-16 11:41:10,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554a77f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:41:10, skipping insertion in model container [2022-11-16 11:41:10,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:09" (2/3) ... [2022-11-16 11:41:10,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554a77f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:41:10, skipping insertion in model container [2022-11-16 11:41:10,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:41:10" (3/3) ... [2022-11-16 11:41:10,572 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_51-mutex_ptr.i [2022-11-16 11:41:10,584 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:41:10,598 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:41:10,599 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-16 11:41:10,599 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:41:10,735 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 11:41:10,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 117 transitions, 242 flow [2022-11-16 11:41:10,938 INFO L130 PetriNetUnfolder]: 0/116 cut-off events. [2022-11-16 11:41:10,938 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:41:10,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 116 events. 0/116 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-16 11:41:10,944 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 117 transitions, 242 flow [2022-11-16 11:41:10,952 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 108 transitions, 219 flow [2022-11-16 11:41:10,982 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:41:10,996 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;@d79cece, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:41:10,996 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-16 11:41:11,029 INFO L130 PetriNetUnfolder]: 0/33 cut-off events. [2022-11-16 11:41:11,030 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:41:11,030 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:41:11,031 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:41:11,032 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 11:41:11,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:41:11,038 INFO L85 PathProgramCache]: Analyzing trace with hash 2115998070, now seen corresponding path program 1 times [2022-11-16 11:41:11,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:41:11,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479317820] [2022-11-16 11:41:11,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:41:11,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:41:11,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:11,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:41:11,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:41:11,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479317820] [2022-11-16 11:41:11,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479317820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:41:11,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:41:11,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:41:11,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317970390] [2022-11-16 11:41:11,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:41:11,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:41:11,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:41:11,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:41:11,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:41:11,581 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 117 [2022-11-16 11:41:11,595 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 108 transitions, 219 flow. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:11,595 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:41:11,595 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 117 [2022-11-16 11:41:11,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:41:11,773 INFO L130 PetriNetUnfolder]: 36/329 cut-off events. [2022-11-16 11:41:11,774 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:41:11,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 329 events. 36/329 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1293 event pairs, 36 based on Foata normal form. 0/277 useless extension candidates. Maximal degree in co-relation 374. Up to 89 conditions per place. [2022-11-16 11:41:11,781 INFO L137 encePairwiseOnDemand]: 114/117 looper letters, 16 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2022-11-16 11:41:11,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 107 transitions, 253 flow [2022-11-16 11:41:11,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:41:11,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:41:11,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 310 transitions. [2022-11-16 11:41:11,812 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8831908831908832 [2022-11-16 11:41:11,813 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 310 transitions. [2022-11-16 11:41:11,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 310 transitions. [2022-11-16 11:41:11,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:41:11,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 310 transitions. [2022-11-16 11:41:11,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:11,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:11,842 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:11,845 INFO L175 Difference]: Start difference. First operand has 112 places, 108 transitions, 219 flow. Second operand 3 states and 310 transitions. [2022-11-16 11:41:11,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 107 transitions, 253 flow [2022-11-16 11:41:11,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 107 transitions, 252 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:41:11,862 INFO L231 Difference]: Finished difference. Result has 112 places, 107 transitions, 220 flow [2022-11-16 11:41:11,865 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=112, PETRI_TRANSITIONS=107} [2022-11-16 11:41:11,869 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 0 predicate places. [2022-11-16 11:41:11,870 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 107 transitions, 220 flow [2022-11-16 11:41:11,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:11,871 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:41:11,872 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:41:11,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:41:11,874 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 11:41:11,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:41:11,876 INFO L85 PathProgramCache]: Analyzing trace with hash 51156575, now seen corresponding path program 1 times [2022-11-16 11:41:11,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:41:11,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116330923] [2022-11-16 11:41:11,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:41:11,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:41:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:12,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:41:12,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:41:12,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116330923] [2022-11-16 11:41:12,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116330923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:41:12,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:41:12,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:41:12,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165637895] [2022-11-16 11:41:12,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:41:12,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:41:12,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:41:12,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:41:12,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:41:12,060 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 117 [2022-11-16 11:41:12,061 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 107 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:12,061 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:41:12,061 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 117 [2022-11-16 11:41:12,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:41:12,181 INFO L130 PetriNetUnfolder]: 16/231 cut-off events. [2022-11-16 11:41:12,181 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:41:12,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 231 events. 16/231 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 647 event pairs, 12 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 239. Up to 40 conditions per place. [2022-11-16 11:41:12,195 INFO L137 encePairwiseOnDemand]: 111/117 looper letters, 11 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2022-11-16 11:41:12,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 105 transitions, 242 flow [2022-11-16 11:41:12,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:41:12,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:41:12,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 317 transitions. [2022-11-16 11:41:12,201 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9031339031339032 [2022-11-16 11:41:12,201 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 317 transitions. [2022-11-16 11:41:12,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 317 transitions. [2022-11-16 11:41:12,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:41:12,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 317 transitions. [2022-11-16 11:41:12,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:12,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:12,206 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:12,207 INFO L175 Difference]: Start difference. First operand has 112 places, 107 transitions, 220 flow. Second operand 3 states and 317 transitions. [2022-11-16 11:41:12,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 105 transitions, 242 flow [2022-11-16 11:41:12,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 105 transitions, 238 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:41:12,211 INFO L231 Difference]: Finished difference. Result has 109 places, 105 transitions, 222 flow [2022-11-16 11:41:12,212 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=109, PETRI_TRANSITIONS=105} [2022-11-16 11:41:12,213 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, -3 predicate places. [2022-11-16 11:41:12,213 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 105 transitions, 222 flow [2022-11-16 11:41:12,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:12,213 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:41:12,214 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:41:12,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:41:12,214 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 11:41:12,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:41:12,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1899893849, now seen corresponding path program 1 times [2022-11-16 11:41:12,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:41:12,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655004121] [2022-11-16 11:41:12,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:41:12,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:41:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:12,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:41:12,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:41:12,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655004121] [2022-11-16 11:41:12,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655004121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:41:12,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:41:12,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:41:12,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171094613] [2022-11-16 11:41:12,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:41:12,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:41:12,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:41:12,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:41:12,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:41:12,823 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 117 [2022-11-16 11:41:12,824 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 105 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:12,825 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:41:12,825 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 117 [2022-11-16 11:41:12,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:41:13,469 INFO L130 PetriNetUnfolder]: 283/882 cut-off events. [2022-11-16 11:41:13,470 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:41:13,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1512 conditions, 882 events. 283/882 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4760 event pairs, 171 based on Foata normal form. 0/793 useless extension candidates. Maximal degree in co-relation 1465. Up to 475 conditions per place. [2022-11-16 11:41:13,483 INFO L137 encePairwiseOnDemand]: 106/117 looper letters, 72 selfloop transitions, 22 changer transitions 0/163 dead transitions. [2022-11-16 11:41:13,483 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 163 transitions, 526 flow [2022-11-16 11:41:13,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:41:13,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:41:13,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 575 transitions. [2022-11-16 11:41:13,487 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8190883190883191 [2022-11-16 11:41:13,488 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 575 transitions. [2022-11-16 11:41:13,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 575 transitions. [2022-11-16 11:41:13,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:41:13,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 575 transitions. [2022-11-16 11:41:13,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.83333333333333) internal successors, (575), 6 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:13,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:13,498 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:13,499 INFO L175 Difference]: Start difference. First operand has 109 places, 105 transitions, 222 flow. Second operand 6 states and 575 transitions. [2022-11-16 11:41:13,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 163 transitions, 526 flow [2022-11-16 11:41:13,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 163 transitions, 526 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:41:13,509 INFO L231 Difference]: Finished difference. Result has 119 places, 126 transitions, 372 flow [2022-11-16 11:41:13,509 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=372, PETRI_PLACES=119, PETRI_TRANSITIONS=126} [2022-11-16 11:41:13,512 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 7 predicate places. [2022-11-16 11:41:13,513 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 126 transitions, 372 flow [2022-11-16 11:41:13,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:13,513 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:41:13,514 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:41:13,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:41:13,514 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 11:41:13,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:41:13,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1548888337, now seen corresponding path program 1 times [2022-11-16 11:41:13,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:41:13,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312511508] [2022-11-16 11:41:13,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:41:13,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:41:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:14,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:41:14,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:41:14,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312511508] [2022-11-16 11:41:14,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312511508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:41:14,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:41:14,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:41:14,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604726597] [2022-11-16 11:41:14,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:41:14,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:41:14,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:41:14,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:41:14,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:41:14,056 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 117 [2022-11-16 11:41:14,057 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 126 transitions, 372 flow. Second operand has 6 states, 6 states have (on average 83.33333333333333) internal successors, (500), 6 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:14,058 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:41:14,058 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 117 [2022-11-16 11:41:14,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:41:14,578 INFO L130 PetriNetUnfolder]: 346/1050 cut-off events. [2022-11-16 11:41:14,578 INFO L131 PetriNetUnfolder]: For 270/276 co-relation queries the response was YES. [2022-11-16 11:41:14,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2148 conditions, 1050 events. 346/1050 cut-off events. For 270/276 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 6023 event pairs, 126 based on Foata normal form. 0/956 useless extension candidates. Maximal degree in co-relation 2098. Up to 545 conditions per place. [2022-11-16 11:41:14,586 INFO L137 encePairwiseOnDemand]: 106/117 looper letters, 103 selfloop transitions, 26 changer transitions 0/200 dead transitions. [2022-11-16 11:41:14,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 200 transitions, 868 flow [2022-11-16 11:41:14,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:41:14,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:41:14,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 601 transitions. [2022-11-16 11:41:14,590 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8561253561253561 [2022-11-16 11:41:14,590 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 601 transitions. [2022-11-16 11:41:14,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 601 transitions. [2022-11-16 11:41:14,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:41:14,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 601 transitions. [2022-11-16 11:41:14,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 100.16666666666667) internal successors, (601), 6 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:14,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:14,596 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:14,596 INFO L175 Difference]: Start difference. First operand has 119 places, 126 transitions, 372 flow. Second operand 6 states and 601 transitions. [2022-11-16 11:41:14,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 200 transitions, 868 flow [2022-11-16 11:41:14,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 200 transitions, 868 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:41:14,605 INFO L231 Difference]: Finished difference. Result has 129 places, 147 transitions, 556 flow [2022-11-16 11:41:14,606 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=556, PETRI_PLACES=129, PETRI_TRANSITIONS=147} [2022-11-16 11:41:14,607 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 17 predicate places. [2022-11-16 11:41:14,607 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 147 transitions, 556 flow [2022-11-16 11:41:14,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.33333333333333) internal successors, (500), 6 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:14,608 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:41:14,608 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:41:14,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:41:14,609 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 11:41:14,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:41:14,610 INFO L85 PathProgramCache]: Analyzing trace with hash 596546482, now seen corresponding path program 1 times [2022-11-16 11:41:14,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:41:14,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918779098] [2022-11-16 11:41:14,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:41:14,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:41:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:15,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:41:15,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:41:15,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918779098] [2022-11-16 11:41:15,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918779098] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:41:15,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:41:15,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:41:15,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722412356] [2022-11-16 11:41:15,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:41:15,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:41:15,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:41:15,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:41:15,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:41:15,102 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 117 [2022-11-16 11:41:15,103 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 147 transitions, 556 flow. Second operand has 6 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:15,104 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:41:15,104 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 117 [2022-11-16 11:41:15,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:41:15,666 INFO L130 PetriNetUnfolder]: 423/1238 cut-off events. [2022-11-16 11:41:15,667 INFO L131 PetriNetUnfolder]: For 771/783 co-relation queries the response was YES. [2022-11-16 11:41:15,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3056 conditions, 1238 events. 423/1238 cut-off events. For 771/783 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 7489 event pairs, 169 based on Foata normal form. 4/1156 useless extension candidates. Maximal degree in co-relation 2998. Up to 790 conditions per place. [2022-11-16 11:41:15,680 INFO L137 encePairwiseOnDemand]: 102/117 looper letters, 96 selfloop transitions, 53 changer transitions 0/215 dead transitions. [2022-11-16 11:41:15,680 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 215 transitions, 1150 flow [2022-11-16 11:41:15,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:41:15,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:41:15,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 559 transitions. [2022-11-16 11:41:15,683 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7962962962962963 [2022-11-16 11:41:15,683 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 559 transitions. [2022-11-16 11:41:15,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 559 transitions. [2022-11-16 11:41:15,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:41:15,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 559 transitions. [2022-11-16 11:41:15,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.16666666666667) internal successors, (559), 6 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:15,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:15,688 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:15,689 INFO L175 Difference]: Start difference. First operand has 129 places, 147 transitions, 556 flow. Second operand 6 states and 559 transitions. [2022-11-16 11:41:15,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 215 transitions, 1150 flow [2022-11-16 11:41:15,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 215 transitions, 1150 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:41:15,705 INFO L231 Difference]: Finished difference. Result has 139 places, 194 transitions, 1038 flow [2022-11-16 11:41:15,706 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1038, PETRI_PLACES=139, PETRI_TRANSITIONS=194} [2022-11-16 11:41:15,710 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 27 predicate places. [2022-11-16 11:41:15,710 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 194 transitions, 1038 flow [2022-11-16 11:41:15,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:15,711 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:41:15,711 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:41:15,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:41:15,712 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 11:41:15,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:41:15,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1156521547, now seen corresponding path program 1 times [2022-11-16 11:41:15,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:41:15,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647593838] [2022-11-16 11:41:15,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:41:15,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:41:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:16,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:41:16,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:41:16,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647593838] [2022-11-16 11:41:16,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647593838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:41:16,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:41:16,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:41:16,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322572428] [2022-11-16 11:41:16,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:41:16,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:41:16,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:41:16,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:41:16,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:41:16,192 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 117 [2022-11-16 11:41:16,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 194 transitions, 1038 flow. Second operand has 6 states, 6 states have (on average 82.5) internal successors, (495), 6 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:16,193 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:41:16,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 117 [2022-11-16 11:41:16,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:41:16,808 INFO L130 PetriNetUnfolder]: 580/1534 cut-off events. [2022-11-16 11:41:16,809 INFO L131 PetriNetUnfolder]: For 1795/1807 co-relation queries the response was YES. [2022-11-16 11:41:16,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4608 conditions, 1534 events. 580/1534 cut-off events. For 1795/1807 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 9261 event pairs, 179 based on Foata normal form. 0/1460 useless extension candidates. Maximal degree in co-relation 4548. Up to 1019 conditions per place. [2022-11-16 11:41:16,825 INFO L137 encePairwiseOnDemand]: 98/117 looper letters, 132 selfloop transitions, 83 changer transitions 4/289 dead transitions. [2022-11-16 11:41:16,825 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 289 transitions, 1942 flow [2022-11-16 11:41:16,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:41:16,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:41:16,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 594 transitions. [2022-11-16 11:41:16,828 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2022-11-16 11:41:16,828 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 594 transitions. [2022-11-16 11:41:16,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 594 transitions. [2022-11-16 11:41:16,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:41:16,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 594 transitions. [2022-11-16 11:41:16,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:16,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:16,833 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:16,833 INFO L175 Difference]: Start difference. First operand has 139 places, 194 transitions, 1038 flow. Second operand 6 states and 594 transitions. [2022-11-16 11:41:16,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 289 transitions, 1942 flow [2022-11-16 11:41:16,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 289 transitions, 1878 flow, removed 32 selfloop flow, removed 0 redundant places. [2022-11-16 11:41:16,859 INFO L231 Difference]: Finished difference. Result has 149 places, 263 transitions, 1730 flow [2022-11-16 11:41:16,859 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=980, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1730, PETRI_PLACES=149, PETRI_TRANSITIONS=263} [2022-11-16 11:41:16,863 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 37 predicate places. [2022-11-16 11:41:16,863 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 263 transitions, 1730 flow [2022-11-16 11:41:16,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.5) internal successors, (495), 6 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:16,865 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:41:16,865 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:41:16,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:41:16,866 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 11:41:16,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:41:16,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1583784919, now seen corresponding path program 1 times [2022-11-16 11:41:16,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:41:16,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125765236] [2022-11-16 11:41:16,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:41:16,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:41:16,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:17,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:41:17,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:41:17,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125765236] [2022-11-16 11:41:17,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125765236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:41:17,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:41:17,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:41:17,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670541777] [2022-11-16 11:41:17,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:41:17,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:41:17,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:41:17,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:41:17,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:41:17,020 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 117 [2022-11-16 11:41:17,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 263 transitions, 1730 flow. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:17,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:41:17,021 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 117 [2022-11-16 11:41:17,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:41:17,113 INFO L130 PetriNetUnfolder]: 46/325 cut-off events. [2022-11-16 11:41:17,113 INFO L131 PetriNetUnfolder]: For 247/247 co-relation queries the response was YES. [2022-11-16 11:41:17,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 823 conditions, 325 events. 46/325 cut-off events. For 247/247 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1062 event pairs, 8 based on Foata normal form. 2/314 useless extension candidates. Maximal degree in co-relation 756. Up to 62 conditions per place. [2022-11-16 11:41:17,116 INFO L137 encePairwiseOnDemand]: 113/117 looper letters, 7 selfloop transitions, 4 changer transitions 0/125 dead transitions. [2022-11-16 11:41:17,117 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 125 transitions, 518 flow [2022-11-16 11:41:17,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:41:17,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:41:17,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 334 transitions. [2022-11-16 11:41:17,119 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9515669515669516 [2022-11-16 11:41:17,119 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 334 transitions. [2022-11-16 11:41:17,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 334 transitions. [2022-11-16 11:41:17,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:41:17,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 334 transitions. [2022-11-16 11:41:17,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:17,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:17,123 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:17,123 INFO L175 Difference]: Start difference. First operand has 149 places, 263 transitions, 1730 flow. Second operand 3 states and 334 transitions. [2022-11-16 11:41:17,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 125 transitions, 518 flow [2022-11-16 11:41:17,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 125 transitions, 392 flow, removed 33 selfloop flow, removed 30 redundant places. [2022-11-16 11:41:17,131 INFO L231 Difference]: Finished difference. Result has 118 places, 123 transitions, 374 flow [2022-11-16 11:41:17,131 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=118, PETRI_TRANSITIONS=123} [2022-11-16 11:41:17,132 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 6 predicate places. [2022-11-16 11:41:17,133 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 123 transitions, 374 flow [2022-11-16 11:41:17,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:17,133 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:41:17,133 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:41:17,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:41:17,134 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 11:41:17,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:41:17,135 INFO L85 PathProgramCache]: Analyzing trace with hash -49540527, now seen corresponding path program 1 times [2022-11-16 11:41:17,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:41:17,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830877985] [2022-11-16 11:41:17,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:41:17,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:41:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:17,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:41:17,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:41:17,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830877985] [2022-11-16 11:41:17,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830877985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:41:17,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:41:17,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:41:17,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170418715] [2022-11-16 11:41:17,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:41:17,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:41:17,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:41:17,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:41:17,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:41:17,580 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 117 [2022-11-16 11:41:17,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 123 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 82.33333333333333) internal successors, (494), 6 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:17,581 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:41:17,581 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 117 [2022-11-16 11:41:17,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:41:17,892 INFO L130 PetriNetUnfolder]: 120/469 cut-off events. [2022-11-16 11:41:17,892 INFO L131 PetriNetUnfolder]: For 127/128 co-relation queries the response was YES. [2022-11-16 11:41:17,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1121 conditions, 469 events. 120/469 cut-off events. For 127/128 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1786 event pairs, 17 based on Foata normal form. 0/455 useless extension candidates. Maximal degree in co-relation 1067. Up to 197 conditions per place. [2022-11-16 11:41:17,895 INFO L137 encePairwiseOnDemand]: 107/117 looper letters, 71 selfloop transitions, 25 changer transitions 11/178 dead transitions. [2022-11-16 11:41:17,895 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 178 transitions, 794 flow [2022-11-16 11:41:17,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:41:17,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:41:17,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 555 transitions. [2022-11-16 11:41:17,898 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7905982905982906 [2022-11-16 11:41:17,898 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 555 transitions. [2022-11-16 11:41:17,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 555 transitions. [2022-11-16 11:41:17,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:41:17,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 555 transitions. [2022-11-16 11:41:17,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.5) internal successors, (555), 6 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:17,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:17,903 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:17,904 INFO L175 Difference]: Start difference. First operand has 118 places, 123 transitions, 374 flow. Second operand 6 states and 555 transitions. [2022-11-16 11:41:17,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 178 transitions, 794 flow [2022-11-16 11:41:17,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 178 transitions, 790 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:41:17,909 INFO L231 Difference]: Finished difference. Result has 127 places, 143 transitions, 586 flow [2022-11-16 11:41:17,910 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=586, PETRI_PLACES=127, PETRI_TRANSITIONS=143} [2022-11-16 11:41:17,913 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 15 predicate places. [2022-11-16 11:41:17,913 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 143 transitions, 586 flow [2022-11-16 11:41:17,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.33333333333333) internal successors, (494), 6 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:17,914 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:41:17,914 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:41:17,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:41:17,914 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 11:41:17,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:41:17,915 INFO L85 PathProgramCache]: Analyzing trace with hash 340642001, now seen corresponding path program 1 times [2022-11-16 11:41:17,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:41:17,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089973288] [2022-11-16 11:41:17,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:41:17,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:41:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:18,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:41:18,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:41:18,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089973288] [2022-11-16 11:41:18,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089973288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:41:18,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:41:18,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:41:18,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181685921] [2022-11-16 11:41:18,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:41:18,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:41:18,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:41:18,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:41:18,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:41:18,715 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 117 [2022-11-16 11:41:18,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 143 transitions, 586 flow. Second operand has 11 states, 11 states have (on average 72.18181818181819) internal successors, (794), 11 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:18,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:41:18,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 117 [2022-11-16 11:41:18,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:41:19,292 INFO L130 PetriNetUnfolder]: 149/597 cut-off events. [2022-11-16 11:41:19,293 INFO L131 PetriNetUnfolder]: For 488/488 co-relation queries the response was YES. [2022-11-16 11:41:19,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1635 conditions, 597 events. 149/597 cut-off events. For 488/488 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2527 event pairs, 2 based on Foata normal form. 11/608 useless extension candidates. Maximal degree in co-relation 1573. Up to 204 conditions per place. [2022-11-16 11:41:19,298 INFO L137 encePairwiseOnDemand]: 107/117 looper letters, 94 selfloop transitions, 29 changer transitions 16/199 dead transitions. [2022-11-16 11:41:19,298 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 199 transitions, 1148 flow [2022-11-16 11:41:19,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:41:19,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:41:19,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 778 transitions. [2022-11-16 11:41:19,302 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6649572649572649 [2022-11-16 11:41:19,302 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 778 transitions. [2022-11-16 11:41:19,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 778 transitions. [2022-11-16 11:41:19,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:41:19,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 778 transitions. [2022-11-16 11:41:19,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 77.8) internal successors, (778), 10 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:19,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:19,312 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:19,312 INFO L175 Difference]: Start difference. First operand has 127 places, 143 transitions, 586 flow. Second operand 10 states and 778 transitions. [2022-11-16 11:41:19,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 199 transitions, 1148 flow [2022-11-16 11:41:19,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 199 transitions, 1130 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-16 11:41:19,322 INFO L231 Difference]: Finished difference. Result has 135 places, 139 transitions, 602 flow [2022-11-16 11:41:19,323 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=602, PETRI_PLACES=135, PETRI_TRANSITIONS=139} [2022-11-16 11:41:19,325 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 23 predicate places. [2022-11-16 11:41:19,326 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 139 transitions, 602 flow [2022-11-16 11:41:19,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 72.18181818181819) internal successors, (794), 11 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:19,327 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:41:19,327 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:41:19,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:41:19,327 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 11:41:19,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:41:19,328 INFO L85 PathProgramCache]: Analyzing trace with hash -2050275116, now seen corresponding path program 1 times [2022-11-16 11:41:19,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:41:19,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259043157] [2022-11-16 11:41:19,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:41:19,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:41:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:20,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:41:20,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:41:20,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259043157] [2022-11-16 11:41:20,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259043157] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:41:20,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:41:20,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:41:20,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584840416] [2022-11-16 11:41:20,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:41:20,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:41:20,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:41:20,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:41:20,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:41:20,389 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 117 [2022-11-16 11:41:20,391 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 139 transitions, 602 flow. Second operand has 11 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:20,391 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:41:20,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 117 [2022-11-16 11:41:20,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:41:21,099 INFO L130 PetriNetUnfolder]: 109/456 cut-off events. [2022-11-16 11:41:21,099 INFO L131 PetriNetUnfolder]: For 345/346 co-relation queries the response was YES. [2022-11-16 11:41:21,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1353 conditions, 456 events. 109/456 cut-off events. For 345/346 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1658 event pairs, 30 based on Foata normal form. 5/459 useless extension candidates. Maximal degree in co-relation 1287. Up to 211 conditions per place. [2022-11-16 11:41:21,104 INFO L137 encePairwiseOnDemand]: 104/117 looper letters, 81 selfloop transitions, 26 changer transitions 13/183 dead transitions. [2022-11-16 11:41:21,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 183 transitions, 974 flow [2022-11-16 11:41:21,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:41:21,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:41:21,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 812 transitions. [2022-11-16 11:41:21,108 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.694017094017094 [2022-11-16 11:41:21,108 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 812 transitions. [2022-11-16 11:41:21,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 812 transitions. [2022-11-16 11:41:21,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:41:21,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 812 transitions. [2022-11-16 11:41:21,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 81.2) internal successors, (812), 10 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:21,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:21,116 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:21,116 INFO L175 Difference]: Start difference. First operand has 135 places, 139 transitions, 602 flow. Second operand 10 states and 812 transitions. [2022-11-16 11:41:21,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 183 transitions, 974 flow [2022-11-16 11:41:21,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 183 transitions, 861 flow, removed 9 selfloop flow, removed 10 redundant places. [2022-11-16 11:41:21,127 INFO L231 Difference]: Finished difference. Result has 135 places, 139 transitions, 567 flow [2022-11-16 11:41:21,127 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=567, PETRI_PLACES=135, PETRI_TRANSITIONS=139} [2022-11-16 11:41:21,128 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 23 predicate places. [2022-11-16 11:41:21,128 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 139 transitions, 567 flow [2022-11-16 11:41:21,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:21,129 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:41:21,130 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:41:21,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:41:21,130 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 11:41:21,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:41:21,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1247262460, now seen corresponding path program 2 times [2022-11-16 11:41:21,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:41:21,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611191315] [2022-11-16 11:41:21,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:41:21,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:41:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:21,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:41:21,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:41:21,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611191315] [2022-11-16 11:41:21,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611191315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:41:21,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:41:21,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:41:21,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374756056] [2022-11-16 11:41:21,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:41:21,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:41:21,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:41:21,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:41:21,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:41:21,848 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 117 [2022-11-16 11:41:21,850 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 139 transitions, 567 flow. Second operand has 11 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:21,850 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:41:21,850 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 117 [2022-11-16 11:41:21,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:41:22,595 INFO L130 PetriNetUnfolder]: 157/631 cut-off events. [2022-11-16 11:41:22,595 INFO L131 PetriNetUnfolder]: For 523/523 co-relation queries the response was YES. [2022-11-16 11:41:22,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1800 conditions, 631 events. 157/631 cut-off events. For 523/523 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2793 event pairs, 11 based on Foata normal form. 10/640 useless extension candidates. Maximal degree in co-relation 1732. Up to 232 conditions per place. [2022-11-16 11:41:22,600 INFO L137 encePairwiseOnDemand]: 108/117 looper letters, 58 selfloop transitions, 4 changer transitions 114/237 dead transitions. [2022-11-16 11:41:22,601 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 237 transitions, 1393 flow [2022-11-16 11:41:22,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:41:22,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:41:22,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 817 transitions. [2022-11-16 11:41:22,604 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6982905982905983 [2022-11-16 11:41:22,605 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 817 transitions. [2022-11-16 11:41:22,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 817 transitions. [2022-11-16 11:41:22,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:41:22,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 817 transitions. [2022-11-16 11:41:22,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 81.7) internal successors, (817), 10 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:22,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:22,612 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:22,613 INFO L175 Difference]: Start difference. First operand has 135 places, 139 transitions, 567 flow. Second operand 10 states and 817 transitions. [2022-11-16 11:41:22,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 237 transitions, 1393 flow [2022-11-16 11:41:22,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 237 transitions, 1317 flow, removed 1 selfloop flow, removed 9 redundant places. [2022-11-16 11:41:22,625 INFO L231 Difference]: Finished difference. Result has 139 places, 121 transitions, 455 flow [2022-11-16 11:41:22,625 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=455, PETRI_PLACES=139, PETRI_TRANSITIONS=121} [2022-11-16 11:41:22,626 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 27 predicate places. [2022-11-16 11:41:22,626 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 121 transitions, 455 flow [2022-11-16 11:41:22,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:22,627 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:41:22,628 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:41:22,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:41:22,628 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 11:41:22,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:41:22,629 INFO L85 PathProgramCache]: Analyzing trace with hash 17921826, now seen corresponding path program 3 times [2022-11-16 11:41:22,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:41:22,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009350720] [2022-11-16 11:41:22,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:41:22,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:41:22,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:23,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:41:23,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:41:23,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009350720] [2022-11-16 11:41:23,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009350720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:41:23,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:41:23,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:41:23,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606490652] [2022-11-16 11:41:23,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:41:23,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:41:23,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:41:23,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:41:23,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:41:23,476 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 117 [2022-11-16 11:41:23,478 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 121 transitions, 455 flow. Second operand has 11 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:23,478 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:41:23,479 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 117 [2022-11-16 11:41:23,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:41:24,276 INFO L130 PetriNetUnfolder]: 91/385 cut-off events. [2022-11-16 11:41:24,276 INFO L131 PetriNetUnfolder]: For 470/470 co-relation queries the response was YES. [2022-11-16 11:41:24,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1098 conditions, 385 events. 91/385 cut-off events. For 470/470 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1273 event pairs, 24 based on Foata normal form. 10/393 useless extension candidates. Maximal degree in co-relation 1026. Up to 149 conditions per place. [2022-11-16 11:41:24,280 INFO L137 encePairwiseOnDemand]: 107/117 looper letters, 71 selfloop transitions, 11 changer transitions 43/186 dead transitions. [2022-11-16 11:41:24,280 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 186 transitions, 958 flow [2022-11-16 11:41:24,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:41:24,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:41:24,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 882 transitions. [2022-11-16 11:41:24,284 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6853146853146853 [2022-11-16 11:41:24,284 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 882 transitions. [2022-11-16 11:41:24,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 882 transitions. [2022-11-16 11:41:24,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:41:24,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 882 transitions. [2022-11-16 11:41:24,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 80.18181818181819) internal successors, (882), 11 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:24,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 117.0) internal successors, (1404), 12 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:24,292 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 117.0) internal successors, (1404), 12 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:24,293 INFO L175 Difference]: Start difference. First operand has 139 places, 121 transitions, 455 flow. Second operand 11 states and 882 transitions. [2022-11-16 11:41:24,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 186 transitions, 958 flow [2022-11-16 11:41:24,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 186 transitions, 876 flow, removed 32 selfloop flow, removed 10 redundant places. [2022-11-16 11:41:24,302 INFO L231 Difference]: Finished difference. Result has 138 places, 121 transitions, 435 flow [2022-11-16 11:41:24,303 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=435, PETRI_PLACES=138, PETRI_TRANSITIONS=121} [2022-11-16 11:41:24,304 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 26 predicate places. [2022-11-16 11:41:24,304 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 121 transitions, 435 flow [2022-11-16 11:41:24,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:24,305 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:41:24,305 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:41:24,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:41:24,306 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 11:41:24,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:41:24,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1891394330, now seen corresponding path program 4 times [2022-11-16 11:41:24,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:41:24,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488650074] [2022-11-16 11:41:24,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:41:24,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:41:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:25,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:41:25,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:41:25,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488650074] [2022-11-16 11:41:25,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488650074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:41:25,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:41:25,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:41:25,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159393369] [2022-11-16 11:41:25,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:41:25,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:41:25,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:41:25,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:41:25,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:41:25,063 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 117 [2022-11-16 11:41:25,064 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 121 transitions, 435 flow. Second operand has 11 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:25,064 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:41:25,064 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 117 [2022-11-16 11:41:25,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:41:25,662 INFO L130 PetriNetUnfolder]: 108/430 cut-off events. [2022-11-16 11:41:25,663 INFO L131 PetriNetUnfolder]: For 584/584 co-relation queries the response was YES. [2022-11-16 11:41:25,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1249 conditions, 430 events. 108/430 cut-off events. For 584/584 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1495 event pairs, 38 based on Foata normal form. 10/436 useless extension candidates. Maximal degree in co-relation 1180. Up to 109 conditions per place. [2022-11-16 11:41:25,667 INFO L137 encePairwiseOnDemand]: 108/117 looper letters, 49 selfloop transitions, 5 changer transitions 77/192 dead transitions. [2022-11-16 11:41:25,667 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 192 transitions, 1047 flow [2022-11-16 11:41:25,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:41:25,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:41:25,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 798 transitions. [2022-11-16 11:41:25,671 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6820512820512821 [2022-11-16 11:41:25,672 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 798 transitions. [2022-11-16 11:41:25,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 798 transitions. [2022-11-16 11:41:25,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:41:25,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 798 transitions. [2022-11-16 11:41:25,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.8) internal successors, (798), 10 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:25,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:25,681 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:25,681 INFO L175 Difference]: Start difference. First operand has 138 places, 121 transitions, 435 flow. Second operand 10 states and 798 transitions. [2022-11-16 11:41:25,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 192 transitions, 1047 flow [2022-11-16 11:41:25,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 192 transitions, 987 flow, removed 11 selfloop flow, removed 10 redundant places. [2022-11-16 11:41:25,692 INFO L231 Difference]: Finished difference. Result has 139 places, 115 transitions, 402 flow [2022-11-16 11:41:25,692 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=402, PETRI_PLACES=139, PETRI_TRANSITIONS=115} [2022-11-16 11:41:25,694 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 27 predicate places. [2022-11-16 11:41:25,695 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 115 transitions, 402 flow [2022-11-16 11:41:25,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:25,696 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:41:25,696 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:41:25,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:41:25,696 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 11:41:25,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:41:25,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1425882132, now seen corresponding path program 5 times [2022-11-16 11:41:25,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:41:25,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632891059] [2022-11-16 11:41:25,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:41:25,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:41:25,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:41:26,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:41:26,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:41:26,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632891059] [2022-11-16 11:41:26,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632891059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:41:26,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:41:26,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:41:26,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511011113] [2022-11-16 11:41:26,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:41:26,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:41:26,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:41:26,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:41:26,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:41:26,500 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 117 [2022-11-16 11:41:26,501 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 115 transitions, 402 flow. Second operand has 11 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:26,501 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:41:26,501 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 117 [2022-11-16 11:41:26,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:41:26,952 INFO L130 PetriNetUnfolder]: 31/193 cut-off events. [2022-11-16 11:41:26,952 INFO L131 PetriNetUnfolder]: For 280/282 co-relation queries the response was YES. [2022-11-16 11:41:26,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 193 events. 31/193 cut-off events. For 280/282 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 297 event pairs, 0 based on Foata normal form. 12/205 useless extension candidates. Maximal degree in co-relation 503. Up to 35 conditions per place. [2022-11-16 11:41:26,954 INFO L137 encePairwiseOnDemand]: 108/117 looper letters, 0 selfloop transitions, 0 changer transitions 150/150 dead transitions. [2022-11-16 11:41:26,954 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 150 transitions, 720 flow [2022-11-16 11:41:26,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:41:26,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:41:26,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 782 transitions. [2022-11-16 11:41:26,958 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6683760683760683 [2022-11-16 11:41:26,958 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 782 transitions. [2022-11-16 11:41:26,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 782 transitions. [2022-11-16 11:41:26,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:41:26,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 782 transitions. [2022-11-16 11:41:26,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 78.2) internal successors, (782), 10 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:26,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:26,968 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 117.0) internal successors, (1287), 11 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:26,968 INFO L175 Difference]: Start difference. First operand has 139 places, 115 transitions, 402 flow. Second operand 10 states and 782 transitions. [2022-11-16 11:41:26,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 150 transitions, 720 flow [2022-11-16 11:41:26,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 150 transitions, 649 flow, removed 25 selfloop flow, removed 12 redundant places. [2022-11-16 11:41:26,974 INFO L231 Difference]: Finished difference. Result has 132 places, 0 transitions, 0 flow [2022-11-16 11:41:26,975 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=132, PETRI_TRANSITIONS=0} [2022-11-16 11:41:26,976 INFO L288 CegarLoopForPetriNet]: 112 programPoint places, 20 predicate places. [2022-11-16 11:41:26,976 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 0 transitions, 0 flow [2022-11-16 11:41:26,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:41:26,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2022-11-16 11:41:26,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2022-11-16 11:41:26,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2022-11-16 11:41:26,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2022-11-16 11:41:26,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2022-11-16 11:41:26,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2022-11-16 11:41:26,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-16 11:41:26,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2022-11-16 11:41:26,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2022-11-16 11:41:26,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2022-11-16 11:41:26,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2022-11-16 11:41:26,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2022-11-16 11:41:26,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2022-11-16 11:41:26,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2022-11-16 11:41:26,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2022-11-16 11:41:26,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:41:26,985 INFO L444 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:41:26,992 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:41:26,992 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:41:27,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:41:27 BasicIcfg [2022-11-16 11:41:27,002 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:41:27,003 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:41:27,003 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:41:27,003 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:41:27,004 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:41:10" (3/4) ... [2022-11-16 11:41:27,007 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:41:27,015 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-16 11:41:27,024 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-16 11:41:27,024 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 11:41:27,025 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 11:41:27,065 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d024c4bd-60e3-4fa2-abc5-8e688dbfa7e1/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:41:27,065 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:41:27,066 INFO L158 Benchmark]: Toolchain (without parser) took 18593.22ms. Allocated memory was 104.9MB in the beginning and 287.3MB in the end (delta: 182.5MB). Free memory was 61.0MB in the beginning and 193.1MB in the end (delta: -132.1MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2022-11-16 11:41:27,066 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 104.9MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:41:27,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1035.92ms. Allocated memory is still 104.9MB. Free memory was 60.8MB in the beginning and 61.3MB in the end (delta: -443.0kB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2022-11-16 11:41:27,067 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.18ms. Allocated memory is still 104.9MB. Free memory was 61.3MB in the beginning and 58.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:41:27,068 INFO L158 Benchmark]: Boogie Preprocessor took 74.44ms. Allocated memory is still 104.9MB. Free memory was 58.7MB in the beginning and 56.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:41:27,068 INFO L158 Benchmark]: RCFGBuilder took 854.90ms. Allocated memory was 104.9MB in the beginning and 136.3MB in the end (delta: 31.5MB). Free memory was 56.8MB in the beginning and 107.7MB in the end (delta: -50.8MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2022-11-16 11:41:27,069 INFO L158 Benchmark]: TraceAbstraction took 16438.65ms. Allocated memory was 136.3MB in the beginning and 287.3MB in the end (delta: 151.0MB). Free memory was 107.0MB in the beginning and 195.2MB in the end (delta: -88.2MB). Peak memory consumption was 62.0MB. Max. memory is 16.1GB. [2022-11-16 11:41:27,069 INFO L158 Benchmark]: Witness Printer took 62.44ms. Allocated memory is still 287.3MB. Free memory was 195.2MB in the beginning and 193.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:41:27,072 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 104.9MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1035.92ms. Allocated memory is still 104.9MB. Free memory was 60.8MB in the beginning and 61.3MB in the end (delta: -443.0kB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.18ms. Allocated memory is still 104.9MB. Free memory was 61.3MB in the beginning and 58.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.44ms. Allocated memory is still 104.9MB. Free memory was 58.7MB in the beginning and 56.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 854.90ms. Allocated memory was 104.9MB in the beginning and 136.3MB in the end (delta: 31.5MB). Free memory was 56.8MB in the beginning and 107.7MB in the end (delta: -50.8MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * TraceAbstraction took 16438.65ms. Allocated memory was 136.3MB in the beginning and 287.3MB in the end (delta: 151.0MB). Free memory was 107.0MB in the beginning and 195.2MB in the end (delta: -88.2MB). Peak memory consumption was 62.0MB. Max. memory is 16.1GB. * Witness Printer took 62.44ms. Allocated memory is still 287.3MB. Free memory was 195.2MB in the beginning and 193.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 933]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 935]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 937]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 937]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 938]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 939]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 924]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 926]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 926]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 927]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 152 locations, 15 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: 16.2s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 847 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 847 mSDsluCounter, 330 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 90 mSDsCounter, 328 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2965 IncrementalHoareTripleChecker+Invalid, 3293 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 328 mSolverCounterUnsat, 240 mSDtfsCounter, 2965 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1730occurred in iteration=6, InterpolantAutomatonStates: 100, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.4s InterpolantComputationTime, 962 NumberOfCodeBlocks, 962 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 948 ConstructedInterpolants, 0 QuantifiedInterpolants, 4975 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 11:41:27,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d024c4bd-60e3-4fa2-abc5-8e688dbfa7e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE