./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/mult-comm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa39074-91a8-476c-870f-98b5a79a69ff/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa39074-91a8-476c-870f-98b5a79a69ff/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa39074-91a8-476c-870f-98b5a79a69ff/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa39074-91a8-476c-870f-98b5a79a69ff/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/mult-comm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa39074-91a8-476c-870f-98b5a79a69ff/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa39074-91a8-476c-870f-98b5a79a69ff/bin/uautomizer-vX5HgA9Q3a --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 a0efdc82161997cbf03fd7c104a0f7adcc3337af1f91e29fd2b7831e9d52958e --- 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-b5237d8 [2022-11-21 13:56:03,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:56:03,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:56:03,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:56:03,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:56:03,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:56:03,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:56:03,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:56:03,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:56:03,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:56:03,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:56:03,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:56:03,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:56:03,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:56:03,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:56:03,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:56:03,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:56:03,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:56:03,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:56:03,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:56:03,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:56:03,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:56:03,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:56:03,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:56:03,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:56:03,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:56:03,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:56:03,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:56:03,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:56:03,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:56:03,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:56:03,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:56:03,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:56:03,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:56:03,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:56:03,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:56:03,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:56:03,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:56:03,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:56:03,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:56:03,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:56:03,412 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa39074-91a8-476c-870f-98b5a79a69ff/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 13:56:03,452 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:56:03,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:56:03,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:56:03,456 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:56:03,457 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:56:03,457 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:56:03,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:56:03,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:56:03,458 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:56:03,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:56:03,459 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:56:03,460 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 13:56:03,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:56:03,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:56:03,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:56:03,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:56:03,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:56:03,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:56:03,461 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 13:56:03,461 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:56:03,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:56:03,462 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:56:03,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:56:03,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:56:03,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:56:03,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:56:03,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:56:03,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:56:03,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:56:03,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:56:03,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:56:03,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:56:03,465 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:56:03,465 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:56:03,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:56:03,466 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_aaa39074-91a8-476c-870f-98b5a79a69ff/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa39074-91a8-476c-870f-98b5a79a69ff/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0efdc82161997cbf03fd7c104a0f7adcc3337af1f91e29fd2b7831e9d52958e [2022-11-21 13:56:03,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:56:03,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:56:03,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:56:03,817 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:56:03,817 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:56:03,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa39074-91a8-476c-870f-98b5a79a69ff/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/weaver/mult-comm.wvr.c [2022-11-21 13:56:06,896 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:56:07,104 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:56:07,105 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa39074-91a8-476c-870f-98b5a79a69ff/sv-benchmarks/c/weaver/mult-comm.wvr.c [2022-11-21 13:56:07,112 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa39074-91a8-476c-870f-98b5a79a69ff/bin/uautomizer-vX5HgA9Q3a/data/0ad2e1805/d045ac8144994141afcb037d3a2228b9/FLAG9564394ec [2022-11-21 13:56:07,127 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa39074-91a8-476c-870f-98b5a79a69ff/bin/uautomizer-vX5HgA9Q3a/data/0ad2e1805/d045ac8144994141afcb037d3a2228b9 [2022-11-21 13:56:07,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:56:07,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:56:07,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:56:07,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:56:07,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:56:07,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:56:07" (1/1) ... [2022-11-21 13:56:07,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@500cbb81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:07, skipping insertion in model container [2022-11-21 13:56:07,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:56:07" (1/1) ... [2022-11-21 13:56:07,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:56:07,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:56:07,381 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa39074-91a8-476c-870f-98b5a79a69ff/sv-benchmarks/c/weaver/mult-comm.wvr.c[1910,1923] [2022-11-21 13:56:07,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:56:07,400 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:56:07,423 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa39074-91a8-476c-870f-98b5a79a69ff/sv-benchmarks/c/weaver/mult-comm.wvr.c[1910,1923] [2022-11-21 13:56:07,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:56:07,439 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:56:07,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:07 WrapperNode [2022-11-21 13:56:07,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:56:07,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:56:07,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:56:07,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:56:07,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:07" (1/1) ... [2022-11-21 13:56:07,458 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:07" (1/1) ... [2022-11-21 13:56:07,481 INFO L138 Inliner]: procedures = 21, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2022-11-21 13:56:07,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:56:07,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:56:07,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:56:07,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:56:07,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:07" (1/1) ... [2022-11-21 13:56:07,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:07" (1/1) ... [2022-11-21 13:56:07,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:07" (1/1) ... [2022-11-21 13:56:07,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:07" (1/1) ... [2022-11-21 13:56:07,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:07" (1/1) ... [2022-11-21 13:56:07,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:07" (1/1) ... [2022-11-21 13:56:07,516 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:07" (1/1) ... [2022-11-21 13:56:07,518 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:07" (1/1) ... [2022-11-21 13:56:07,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:56:07,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:56:07,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:56:07,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:56:07,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:07" (1/1) ... [2022-11-21 13:56:07,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:56:07,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa39074-91a8-476c-870f-98b5a79a69ff/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:56:07,556 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa39074-91a8-476c-870f-98b5a79a69ff/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:56:07,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa39074-91a8-476c-870f-98b5a79a69ff/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:56:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:56:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-21 13:56:07,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-21 13:56:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-21 13:56:07,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-21 13:56:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 13:56:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 13:56:07,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 13:56:07,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:56:07,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:56:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 13:56:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 13:56:07,617 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 13:56:07,716 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:56:07,717 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:56:08,012 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:56:08,021 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:56:08,021 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 13:56:08,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:56:08 BoogieIcfgContainer [2022-11-21 13:56:08,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:56:08,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:56:08,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:56:08,031 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:56:08,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:56:07" (1/3) ... [2022-11-21 13:56:08,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b2df83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:56:08, skipping insertion in model container [2022-11-21 13:56:08,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:56:07" (2/3) ... [2022-11-21 13:56:08,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b2df83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:56:08, skipping insertion in model container [2022-11-21 13:56:08,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:56:08" (3/3) ... [2022-11-21 13:56:08,034 INFO L112 eAbstractionObserver]: Analyzing ICFG mult-comm.wvr.c [2022-11-21 13:56:08,045 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 13:56:08,057 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:56:08,058 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-21 13:56:08,058 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 13:56:08,169 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-21 13:56:08,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 135 transitions, 286 flow [2022-11-21 13:56:08,299 INFO L130 PetriNetUnfolder]: 5/133 cut-off events. [2022-11-21 13:56:08,299 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 13:56:08,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 133 events. 5/133 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 158 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2022-11-21 13:56:08,306 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 135 transitions, 286 flow [2022-11-21 13:56:08,313 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 115 transitions, 242 flow [2022-11-21 13:56:08,324 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:56:08,331 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;@308c2a0f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:56:08,331 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-11-21 13:56:08,340 INFO L130 PetriNetUnfolder]: 0/21 cut-off events. [2022-11-21 13:56:08,341 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:56:08,341 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:56:08,342 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] [2022-11-21 13:56:08,342 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-21 13:56:08,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:56:08,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1948531554, now seen corresponding path program 1 times [2022-11-21 13:56:08,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:56:08,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355036347] [2022-11-21 13:56:08,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:56:08,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:56:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:08,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:56:08,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:56:08,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355036347] [2022-11-21 13:56:08,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355036347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:56:08,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:56:08,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:56:08,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303031879] [2022-11-21 13:56:08,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:56:08,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:56:08,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:56:08,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:56:08,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:56:08,667 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 135 [2022-11-21 13:56:08,677 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 115 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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) [2022-11-21 13:56:08,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:56:08,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 135 [2022-11-21 13:56:08,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:56:08,847 INFO L130 PetriNetUnfolder]: 29/277 cut-off events. [2022-11-21 13:56:08,847 INFO L131 PetriNetUnfolder]: For 35/38 co-relation queries the response was YES. [2022-11-21 13:56:08,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 277 events. 29/277 cut-off events. For 35/38 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1199 event pairs, 15 based on Foata normal form. 7/230 useless extension candidates. Maximal degree in co-relation 241. Up to 55 conditions per place. [2022-11-21 13:56:08,853 INFO L137 encePairwiseOnDemand]: 130/135 looper letters, 13 selfloop transitions, 2 changer transitions 0/112 dead transitions. [2022-11-21 13:56:08,853 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 112 transitions, 266 flow [2022-11-21 13:56:08,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:56:08,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:56:08,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 363 transitions. [2022-11-21 13:56:08,869 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8962962962962963 [2022-11-21 13:56:08,870 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 363 transitions. [2022-11-21 13:56:08,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 363 transitions. [2022-11-21 13:56:08,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:56:08,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 363 transitions. [2022-11-21 13:56:08,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2022-11-21 13:56:08,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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) [2022-11-21 13:56:08,887 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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) [2022-11-21 13:56:08,889 INFO L175 Difference]: Start difference. First operand has 118 places, 115 transitions, 242 flow. Second operand 3 states and 363 transitions. [2022-11-21 13:56:08,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 112 transitions, 266 flow [2022-11-21 13:56:08,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 112 transitions, 258 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 13:56:08,898 INFO L231 Difference]: Finished difference. Result has 115 places, 112 transitions, 232 flow [2022-11-21 13:56:08,900 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=115, PETRI_TRANSITIONS=112} [2022-11-21 13:56:08,906 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -3 predicate places. [2022-11-21 13:56:08,906 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 112 transitions, 232 flow [2022-11-21 13:56:08,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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) [2022-11-21 13:56:08,908 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:56:08,908 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] [2022-11-21 13:56:08,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 13:56:08,909 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-21 13:56:08,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:56:08,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1888483432, now seen corresponding path program 1 times [2022-11-21 13:56:08,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:56:08,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680494277] [2022-11-21 13:56:08,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:56:08,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:56:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:09,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:56:09,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:56:09,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680494277] [2022-11-21 13:56:09,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680494277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:56:09,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:56:09,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:56:09,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633995534] [2022-11-21 13:56:09,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:56:09,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:56:09,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:56:09,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:56:09,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:56:09,051 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 135 [2022-11-21 13:56:09,051 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 112 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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) [2022-11-21 13:56:09,055 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:56:09,055 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 135 [2022-11-21 13:56:09,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:56:09,132 INFO L130 PetriNetUnfolder]: 26/272 cut-off events. [2022-11-21 13:56:09,133 INFO L131 PetriNetUnfolder]: For 6/12 co-relation queries the response was YES. [2022-11-21 13:56:09,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 272 events. 26/272 cut-off events. For 6/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1057 event pairs, 15 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 306. Up to 53 conditions per place. [2022-11-21 13:56:09,136 INFO L137 encePairwiseOnDemand]: 132/135 looper letters, 13 selfloop transitions, 2 changer transitions 0/111 dead transitions. [2022-11-21 13:56:09,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 111 transitions, 260 flow [2022-11-21 13:56:09,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:56:09,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:56:09,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2022-11-21 13:56:09,140 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.891358024691358 [2022-11-21 13:56:09,140 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 361 transitions. [2022-11-21 13:56:09,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 361 transitions. [2022-11-21 13:56:09,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:56:09,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 361 transitions. [2022-11-21 13:56:09,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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) [2022-11-21 13:56:09,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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) [2022-11-21 13:56:09,146 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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) [2022-11-21 13:56:09,147 INFO L175 Difference]: Start difference. First operand has 115 places, 112 transitions, 232 flow. Second operand 3 states and 361 transitions. [2022-11-21 13:56:09,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 111 transitions, 260 flow [2022-11-21 13:56:09,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 111 transitions, 256 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 13:56:09,151 INFO L231 Difference]: Finished difference. Result has 114 places, 111 transitions, 230 flow [2022-11-21 13:56:09,152 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=114, PETRI_TRANSITIONS=111} [2022-11-21 13:56:09,153 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -4 predicate places. [2022-11-21 13:56:09,153 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 111 transitions, 230 flow [2022-11-21 13:56:09,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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) [2022-11-21 13:56:09,154 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:56:09,154 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] [2022-11-21 13:56:09,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 13:56:09,155 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-21 13:56:09,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:56:09,156 INFO L85 PathProgramCache]: Analyzing trace with hash 444633768, now seen corresponding path program 1 times [2022-11-21 13:56:09,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:56:09,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146745817] [2022-11-21 13:56:09,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:56:09,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:56:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:09,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:56:09,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:56:09,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146745817] [2022-11-21 13:56:09,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146745817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:56:09,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:56:09,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:56:09,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556909856] [2022-11-21 13:56:09,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:56:09,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:56:09,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:56:09,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:56:09,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:56:09,251 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 135 [2022-11-21 13:56:09,252 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 111 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2022-11-21 13:56:09,252 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:56:09,253 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 135 [2022-11-21 13:56:09,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:56:09,327 INFO L130 PetriNetUnfolder]: 17/247 cut-off events. [2022-11-21 13:56:09,327 INFO L131 PetriNetUnfolder]: For 6/10 co-relation queries the response was YES. [2022-11-21 13:56:09,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 247 events. 17/247 cut-off events. For 6/10 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 871 event pairs, 4 based on Foata normal form. 1/209 useless extension candidates. Maximal degree in co-relation 254. Up to 31 conditions per place. [2022-11-21 13:56:09,335 INFO L137 encePairwiseOnDemand]: 131/135 looper letters, 11 selfloop transitions, 2 changer transitions 0/112 dead transitions. [2022-11-21 13:56:09,336 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 112 transitions, 259 flow [2022-11-21 13:56:09,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:56:09,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:56:09,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 369 transitions. [2022-11-21 13:56:09,344 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2022-11-21 13:56:09,344 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 369 transitions. [2022-11-21 13:56:09,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 369 transitions. [2022-11-21 13:56:09,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:56:09,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 369 transitions. [2022-11-21 13:56:09,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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) [2022-11-21 13:56:09,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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) [2022-11-21 13:56:09,353 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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) [2022-11-21 13:56:09,354 INFO L175 Difference]: Start difference. First operand has 114 places, 111 transitions, 230 flow. Second operand 3 states and 369 transitions. [2022-11-21 13:56:09,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 112 transitions, 259 flow [2022-11-21 13:56:09,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 112 transitions, 255 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 13:56:09,360 INFO L231 Difference]: Finished difference. Result has 113 places, 111 transitions, 236 flow [2022-11-21 13:56:09,361 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=236, PETRI_PLACES=113, PETRI_TRANSITIONS=111} [2022-11-21 13:56:09,362 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -5 predicate places. [2022-11-21 13:56:09,362 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 111 transitions, 236 flow [2022-11-21 13:56:09,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2022-11-21 13:56:09,363 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:56:09,363 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:56:09,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 13:56:09,363 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-21 13:56:09,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:56:09,364 INFO L85 PathProgramCache]: Analyzing trace with hash 405766401, now seen corresponding path program 1 times [2022-11-21 13:56:09,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:56:09,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129142175] [2022-11-21 13:56:09,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:56:09,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:56:09,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:09,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:56:09,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:56:09,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129142175] [2022-11-21 13:56:09,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129142175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:56:09,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:56:09,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:56:09,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339367175] [2022-11-21 13:56:09,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:56:09,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:56:09,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:56:09,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:56:09,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:56:09,510 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 135 [2022-11-21 13:56:09,512 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 111 transitions, 236 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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) [2022-11-21 13:56:09,512 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:56:09,512 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 135 [2022-11-21 13:56:09,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:56:09,562 INFO L130 PetriNetUnfolder]: 14/172 cut-off events. [2022-11-21 13:56:09,563 INFO L131 PetriNetUnfolder]: For 4/12 co-relation queries the response was YES. [2022-11-21 13:56:09,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 172 events. 14/172 cut-off events. For 4/12 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 485 event pairs, 3 based on Foata normal form. 2/154 useless extension candidates. Maximal degree in co-relation 148. Up to 16 conditions per place. [2022-11-21 13:56:09,565 INFO L137 encePairwiseOnDemand]: 130/135 looper letters, 9 selfloop transitions, 3 changer transitions 0/110 dead transitions. [2022-11-21 13:56:09,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 110 transitions, 259 flow [2022-11-21 13:56:09,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:56:09,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:56:09,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2022-11-21 13:56:09,569 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.908641975308642 [2022-11-21 13:56:09,569 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 368 transitions. [2022-11-21 13:56:09,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 368 transitions. [2022-11-21 13:56:09,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:56:09,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 368 transitions. [2022-11-21 13:56:09,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2022-11-21 13:56:09,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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) [2022-11-21 13:56:09,582 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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) [2022-11-21 13:56:09,583 INFO L175 Difference]: Start difference. First operand has 113 places, 111 transitions, 236 flow. Second operand 3 states and 368 transitions. [2022-11-21 13:56:09,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 110 transitions, 259 flow [2022-11-21 13:56:09,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 110 transitions, 259 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 13:56:09,588 INFO L231 Difference]: Finished difference. Result has 113 places, 109 transitions, 238 flow [2022-11-21 13:56:09,589 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=113, PETRI_TRANSITIONS=109} [2022-11-21 13:56:09,593 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -5 predicate places. [2022-11-21 13:56:09,594 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 109 transitions, 238 flow [2022-11-21 13:56:09,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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) [2022-11-21 13:56:09,601 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:56:09,601 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] [2022-11-21 13:56:09,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 13:56:09,602 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-21 13:56:09,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:56:09,606 INFO L85 PathProgramCache]: Analyzing trace with hash -900501949, now seen corresponding path program 1 times [2022-11-21 13:56:09,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:56:09,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273849200] [2022-11-21 13:56:09,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:56:09,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:56:09,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:09,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:56:09,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:56:09,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273849200] [2022-11-21 13:56:09,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273849200] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:56:09,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:56:09,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:56:09,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437191794] [2022-11-21 13:56:09,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:56:09,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:56:09,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:56:09,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:56:09,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:56:09,683 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 135 [2022-11-21 13:56:09,683 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 109 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2022-11-21 13:56:09,684 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:56:09,684 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 135 [2022-11-21 13:56:09,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:56:09,741 INFO L130 PetriNetUnfolder]: 27/257 cut-off events. [2022-11-21 13:56:09,742 INFO L131 PetriNetUnfolder]: For 9/13 co-relation queries the response was YES. [2022-11-21 13:56:09,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 257 events. 27/257 cut-off events. For 9/13 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 986 event pairs, 2 based on Foata normal form. 1/227 useless extension candidates. Maximal degree in co-relation 257. Up to 40 conditions per place. [2022-11-21 13:56:09,744 INFO L137 encePairwiseOnDemand]: 131/135 looper letters, 12 selfloop transitions, 2 changer transitions 0/111 dead transitions. [2022-11-21 13:56:09,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 111 transitions, 272 flow [2022-11-21 13:56:09,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:56:09,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:56:09,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2022-11-21 13:56:09,747 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9135802469135802 [2022-11-21 13:56:09,747 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 370 transitions. [2022-11-21 13:56:09,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 370 transitions. [2022-11-21 13:56:09,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:56:09,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 370 transitions. [2022-11-21 13:56:09,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 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) [2022-11-21 13:56:09,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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) [2022-11-21 13:56:09,751 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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) [2022-11-21 13:56:09,752 INFO L175 Difference]: Start difference. First operand has 113 places, 109 transitions, 238 flow. Second operand 3 states and 370 transitions. [2022-11-21 13:56:09,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 111 transitions, 272 flow [2022-11-21 13:56:09,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 111 transitions, 266 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 13:56:09,755 INFO L231 Difference]: Finished difference. Result has 112 places, 109 transitions, 242 flow [2022-11-21 13:56:09,755 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=112, PETRI_TRANSITIONS=109} [2022-11-21 13:56:09,756 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -6 predicate places. [2022-11-21 13:56:09,757 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 109 transitions, 242 flow [2022-11-21 13:56:09,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2022-11-21 13:56:09,757 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:56:09,758 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] [2022-11-21 13:56:09,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 13:56:09,758 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-21 13:56:09,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:56:09,759 INFO L85 PathProgramCache]: Analyzing trace with hash 2067395718, now seen corresponding path program 1 times [2022-11-21 13:56:09,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:56:09,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423018986] [2022-11-21 13:56:09,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:56:09,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:56:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:09,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:56:09,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:56:09,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423018986] [2022-11-21 13:56:09,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423018986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:56:09,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:56:09,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:56:09,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647752329] [2022-11-21 13:56:09,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:56:09,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:56:09,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:56:09,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:56:09,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:56:09,865 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 135 [2022-11-21 13:56:09,865 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 109 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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) [2022-11-21 13:56:09,866 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:56:09,866 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 135 [2022-11-21 13:56:09,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:56:09,952 INFO L130 PetriNetUnfolder]: 21/211 cut-off events. [2022-11-21 13:56:09,953 INFO L131 PetriNetUnfolder]: For 5/10 co-relation queries the response was YES. [2022-11-21 13:56:09,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 211 events. 21/211 cut-off events. For 5/10 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 718 event pairs, 6 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 215. Up to 28 conditions per place. [2022-11-21 13:56:09,955 INFO L137 encePairwiseOnDemand]: 132/135 looper letters, 11 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2022-11-21 13:56:09,956 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 109 transitions, 269 flow [2022-11-21 13:56:09,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:56:09,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:56:09,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 362 transitions. [2022-11-21 13:56:09,959 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8938271604938272 [2022-11-21 13:56:09,959 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 362 transitions. [2022-11-21 13:56:09,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 362 transitions. [2022-11-21 13:56:09,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:56:09,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 362 transitions. [2022-11-21 13:56:09,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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) [2022-11-21 13:56:09,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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) [2022-11-21 13:56:09,963 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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) [2022-11-21 13:56:09,964 INFO L175 Difference]: Start difference. First operand has 112 places, 109 transitions, 242 flow. Second operand 3 states and 362 transitions. [2022-11-21 13:56:09,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 109 transitions, 269 flow [2022-11-21 13:56:09,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 109 transitions, 269 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 13:56:09,968 INFO L231 Difference]: Finished difference. Result has 113 places, 108 transitions, 244 flow [2022-11-21 13:56:09,968 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=113, PETRI_TRANSITIONS=108} [2022-11-21 13:56:09,972 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -5 predicate places. [2022-11-21 13:56:09,972 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 108 transitions, 244 flow [2022-11-21 13:56:09,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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) [2022-11-21 13:56:09,972 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:56:09,973 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] [2022-11-21 13:56:09,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 13:56:09,975 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-21 13:56:09,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:56:09,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1683685929, now seen corresponding path program 1 times [2022-11-21 13:56:09,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:56:09,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749528128] [2022-11-21 13:56:09,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:56:09,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:56:10,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:10,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:56:10,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:56:10,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749528128] [2022-11-21 13:56:10,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749528128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:56:10,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:56:10,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:56:10,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602380964] [2022-11-21 13:56:10,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:56:10,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:56:10,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:56:10,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:56:10,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:56:10,049 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 135 [2022-11-21 13:56:10,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 108 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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) [2022-11-21 13:56:10,050 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:56:10,050 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 135 [2022-11-21 13:56:10,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:56:10,105 INFO L130 PetriNetUnfolder]: 23/207 cut-off events. [2022-11-21 13:56:10,105 INFO L131 PetriNetUnfolder]: For 14/17 co-relation queries the response was YES. [2022-11-21 13:56:10,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 207 events. 23/207 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 659 event pairs, 3 based on Foata normal form. 2/191 useless extension candidates. Maximal degree in co-relation 235. Up to 23 conditions per place. [2022-11-21 13:56:10,107 INFO L137 encePairwiseOnDemand]: 130/135 looper letters, 7 selfloop transitions, 2 changer transitions 5/107 dead transitions. [2022-11-21 13:56:10,107 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 107 transitions, 265 flow [2022-11-21 13:56:10,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:56:10,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:56:10,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2022-11-21 13:56:10,109 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9061728395061729 [2022-11-21 13:56:10,109 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2022-11-21 13:56:10,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2022-11-21 13:56:10,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:56:10,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2022-11-21 13:56:10,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2022-11-21 13:56:10,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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) [2022-11-21 13:56:10,113 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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) [2022-11-21 13:56:10,113 INFO L175 Difference]: Start difference. First operand has 113 places, 108 transitions, 244 flow. Second operand 3 states and 367 transitions. [2022-11-21 13:56:10,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 107 transitions, 265 flow [2022-11-21 13:56:10,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 107 transitions, 261 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 13:56:10,116 INFO L231 Difference]: Finished difference. Result has 111 places, 101 transitions, 229 flow [2022-11-21 13:56:10,116 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=229, PETRI_PLACES=111, PETRI_TRANSITIONS=101} [2022-11-21 13:56:10,117 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -7 predicate places. [2022-11-21 13:56:10,117 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 101 transitions, 229 flow [2022-11-21 13:56:10,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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) [2022-11-21 13:56:10,118 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:56:10,118 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:56:10,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 13:56:10,118 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-21 13:56:10,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:56:10,119 INFO L85 PathProgramCache]: Analyzing trace with hash -519261917, now seen corresponding path program 1 times [2022-11-21 13:56:10,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:56:10,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090891537] [2022-11-21 13:56:10,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:56:10,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:56:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:10,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:56:10,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:56:10,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090891537] [2022-11-21 13:56:10,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090891537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:56:10,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:56:10,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:56:10,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141162404] [2022-11-21 13:56:10,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:56:10,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:56:10,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:56:10,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:56:10,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:56:10,610 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 135 [2022-11-21 13:56:10,611 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 101 transitions, 229 flow. Second operand has 6 states, 6 states have (on average 110.83333333333333) internal successors, (665), 6 states have internal predecessors, (665), 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) [2022-11-21 13:56:10,611 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:56:10,611 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 135 [2022-11-21 13:56:10,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:56:10,719 INFO L130 PetriNetUnfolder]: 10/169 cut-off events. [2022-11-21 13:56:10,719 INFO L131 PetriNetUnfolder]: For 1/8 co-relation queries the response was YES. [2022-11-21 13:56:10,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 169 events. 10/169 cut-off events. For 1/8 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 437 event pairs, 0 based on Foata normal form. 4/160 useless extension candidates. Maximal degree in co-relation 156. Up to 16 conditions per place. [2022-11-21 13:56:10,721 INFO L137 encePairwiseOnDemand]: 130/135 looper letters, 14 selfloop transitions, 4 changer transitions 0/100 dead transitions. [2022-11-21 13:56:10,722 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 100 transitions, 263 flow [2022-11-21 13:56:10,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:56:10,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:56:10,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 673 transitions. [2022-11-21 13:56:10,726 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8308641975308642 [2022-11-21 13:56:10,726 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 673 transitions. [2022-11-21 13:56:10,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 673 transitions. [2022-11-21 13:56:10,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:56:10,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 673 transitions. [2022-11-21 13:56:10,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 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) [2022-11-21 13:56:10,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 135.0) internal successors, (945), 7 states have internal predecessors, (945), 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) [2022-11-21 13:56:10,732 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 135.0) internal successors, (945), 7 states have internal predecessors, (945), 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) [2022-11-21 13:56:10,732 INFO L175 Difference]: Start difference. First operand has 111 places, 101 transitions, 229 flow. Second operand 6 states and 673 transitions. [2022-11-21 13:56:10,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 100 transitions, 263 flow [2022-11-21 13:56:10,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 100 transitions, 259 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 13:56:10,735 INFO L231 Difference]: Finished difference. Result has 108 places, 100 transitions, 231 flow [2022-11-21 13:56:10,735 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=231, PETRI_PLACES=108, PETRI_TRANSITIONS=100} [2022-11-21 13:56:10,739 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -10 predicate places. [2022-11-21 13:56:10,740 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 100 transitions, 231 flow [2022-11-21 13:56:10,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.83333333333333) internal successors, (665), 6 states have internal predecessors, (665), 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) [2022-11-21 13:56:10,740 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:56:10,741 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] [2022-11-21 13:56:10,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 13:56:10,741 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-21 13:56:10,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:56:10,742 INFO L85 PathProgramCache]: Analyzing trace with hash 759939246, now seen corresponding path program 1 times [2022-11-21 13:56:10,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:56:10,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995422889] [2022-11-21 13:56:10,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:56:10,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:56:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:10,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:56:10,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:56:10,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995422889] [2022-11-21 13:56:10,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995422889] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:56:10,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:56:10,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:56:10,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756804108] [2022-11-21 13:56:10,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:56:10,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:56:10,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:56:10,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:56:10,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:56:10,804 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 135 [2022-11-21 13:56:10,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 100 transitions, 231 flow. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 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) [2022-11-21 13:56:10,805 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:56:10,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 135 [2022-11-21 13:56:10,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:56:10,862 INFO L130 PetriNetUnfolder]: 22/196 cut-off events. [2022-11-21 13:56:10,862 INFO L131 PetriNetUnfolder]: For 12/13 co-relation queries the response was YES. [2022-11-21 13:56:10,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 196 events. 22/196 cut-off events. For 12/13 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 632 event pairs, 4 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 215. Up to 33 conditions per place. [2022-11-21 13:56:10,864 INFO L137 encePairwiseOnDemand]: 132/135 looper letters, 8 selfloop transitions, 2 changer transitions 0/100 dead transitions. [2022-11-21 13:56:10,864 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 100 transitions, 252 flow [2022-11-21 13:56:10,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:56:10,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:56:10,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 359 transitions. [2022-11-21 13:56:10,867 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8864197530864197 [2022-11-21 13:56:10,867 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 359 transitions. [2022-11-21 13:56:10,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 359 transitions. [2022-11-21 13:56:10,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:56:10,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 359 transitions. [2022-11-21 13:56:10,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2022-11-21 13:56:10,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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) [2022-11-21 13:56:10,871 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 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) [2022-11-21 13:56:10,871 INFO L175 Difference]: Start difference. First operand has 108 places, 100 transitions, 231 flow. Second operand 3 states and 359 transitions. [2022-11-21 13:56:10,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 100 transitions, 252 flow [2022-11-21 13:56:10,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 100 transitions, 245 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 13:56:10,877 INFO L231 Difference]: Finished difference. Result has 105 places, 99 transitions, 226 flow [2022-11-21 13:56:10,877 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=105, PETRI_TRANSITIONS=99} [2022-11-21 13:56:10,878 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -13 predicate places. [2022-11-21 13:56:10,879 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 99 transitions, 226 flow [2022-11-21 13:56:10,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 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) [2022-11-21 13:56:10,879 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:56:10,879 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] [2022-11-21 13:56:10,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 13:56:10,880 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-21 13:56:10,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:56:10,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1270378214, now seen corresponding path program 1 times [2022-11-21 13:56:10,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:56:10,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310730367] [2022-11-21 13:56:10,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:56:10,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:56:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:56:11,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:56:11,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:56:11,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310730367] [2022-11-21 13:56:11,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310730367] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:56:11,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:56:11,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:56:11,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220246595] [2022-11-21 13:56:11,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:56:11,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:56:11,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:56:11,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:56:11,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:56:11,322 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 135 [2022-11-21 13:56:11,323 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 99 transitions, 226 flow. Second operand has 6 states, 6 states have (on average 111.83333333333333) internal successors, (671), 6 states have internal predecessors, (671), 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) [2022-11-21 13:56:11,323 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:56:11,323 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 135 [2022-11-21 13:56:11,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:56:11,382 INFO L130 PetriNetUnfolder]: 10/164 cut-off events. [2022-11-21 13:56:11,383 INFO L131 PetriNetUnfolder]: For 1/8 co-relation queries the response was YES. [2022-11-21 13:56:11,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 164 events. 10/164 cut-off events. For 1/8 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 419 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 171. Up to 15 conditions per place. [2022-11-21 13:56:11,384 INFO L137 encePairwiseOnDemand]: 130/135 looper letters, 0 selfloop transitions, 0 changer transitions 98/98 dead transitions. [2022-11-21 13:56:11,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 98 transitions, 258 flow [2022-11-21 13:56:11,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:56:11,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:56:11,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 672 transitions. [2022-11-21 13:56:11,387 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8296296296296296 [2022-11-21 13:56:11,387 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 672 transitions. [2022-11-21 13:56:11,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 672 transitions. [2022-11-21 13:56:11,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:56:11,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 672 transitions. [2022-11-21 13:56:11,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 112.0) internal successors, (672), 6 states have internal predecessors, (672), 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) [2022-11-21 13:56:11,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 135.0) internal successors, (945), 7 states have internal predecessors, (945), 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) [2022-11-21 13:56:11,392 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 135.0) internal successors, (945), 7 states have internal predecessors, (945), 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) [2022-11-21 13:56:11,393 INFO L175 Difference]: Start difference. First operand has 105 places, 99 transitions, 226 flow. Second operand 6 states and 672 transitions. [2022-11-21 13:56:11,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 98 transitions, 258 flow [2022-11-21 13:56:11,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 98 transitions, 254 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 13:56:11,395 INFO L231 Difference]: Finished difference. Result has 107 places, 0 transitions, 0 flow [2022-11-21 13:56:11,395 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=107, PETRI_TRANSITIONS=0} [2022-11-21 13:56:11,396 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -11 predicate places. [2022-11-21 13:56:11,396 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 0 transitions, 0 flow [2022-11-21 13:56:11,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 111.83333333333333) internal successors, (671), 6 states have internal predecessors, (671), 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) [2022-11-21 13:56:11,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2022-11-21 13:56:11,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2022-11-21 13:56:11,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2022-11-21 13:56:11,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2022-11-21 13:56:11,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2022-11-21 13:56:11,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2022-11-21 13:56:11,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2022-11-21 13:56:11,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2022-11-21 13:56:11,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2022-11-21 13:56:11,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2022-11-21 13:56:11,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2022-11-21 13:56:11,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2022-11-21 13:56:11,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2022-11-21 13:56:11,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2022-11-21 13:56:11,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 24 remaining) [2022-11-21 13:56:11,408 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 24 remaining) [2022-11-21 13:56:11,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2022-11-21 13:56:11,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2022-11-21 13:56:11,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2022-11-21 13:56:11,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2022-11-21 13:56:11,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2022-11-21 13:56:11,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2022-11-21 13:56:11,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2022-11-21 13:56:11,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2022-11-21 13:56:11,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 13:56:11,411 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:56:11,417 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 13:56:11,418 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 13:56:11,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:56:11 BasicIcfg [2022-11-21 13:56:11,425 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 13:56:11,426 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 13:56:11,426 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 13:56:11,426 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 13:56:11,427 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:56:08" (3/4) ... [2022-11-21 13:56:11,429 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 13:56:11,436 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-21 13:56:11,436 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-21 13:56:11,443 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-21 13:56:11,443 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 13:56:11,443 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 13:56:11,444 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 13:56:11,487 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa39074-91a8-476c-870f-98b5a79a69ff/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 13:56:11,488 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 13:56:11,489 INFO L158 Benchmark]: Toolchain (without parser) took 4356.94ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 137.5MB in the beginning and 147.9MB in the end (delta: -10.4MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2022-11-21 13:56:11,489 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory is still 96.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:56:11,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.11ms. Allocated memory is still 167.8MB. Free memory was 137.5MB in the beginning and 137.8MB in the end (delta: -263.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 13:56:11,490 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.90ms. Allocated memory is still 167.8MB. Free memory was 137.8MB in the beginning and 136.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:56:11,490 INFO L158 Benchmark]: Boogie Preprocessor took 37.70ms. Allocated memory is still 167.8MB. Free memory was 136.2MB in the beginning and 134.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:56:11,491 INFO L158 Benchmark]: RCFGBuilder took 503.20ms. Allocated memory is still 167.8MB. Free memory was 133.8MB in the beginning and 119.4MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 13:56:11,491 INFO L158 Benchmark]: TraceAbstraction took 3398.59ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 118.1MB in the beginning and 151.0MB in the end (delta: -32.9MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2022-11-21 13:56:11,492 INFO L158 Benchmark]: Witness Printer took 62.03ms. Allocated memory is still 201.3MB. Free memory was 151.0MB in the beginning and 147.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:56:11,494 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory is still 96.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.11ms. Allocated memory is still 167.8MB. Free memory was 137.5MB in the beginning and 137.8MB in the end (delta: -263.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.90ms. Allocated memory is still 167.8MB. Free memory was 137.8MB in the beginning and 136.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.70ms. Allocated memory is still 167.8MB. Free memory was 136.2MB in the beginning and 134.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 503.20ms. Allocated memory is still 167.8MB. Free memory was 133.8MB in the beginning and 119.4MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3398.59ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 118.1MB in the beginning and 151.0MB in the end (delta: -32.9MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. * Witness Printer took 62.03ms. Allocated memory is still 201.3MB. Free memory was 151.0MB in the beginning and 147.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 179 locations, 24 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.2s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 69 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 162 IncrementalHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 69 mSDtfsCounter, 162 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=6, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 423 NumberOfCodeBlocks, 423 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 413 ConstructedInterpolants, 0 QuantifiedInterpolants, 591 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 13:56:11,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaa39074-91a8-476c-870f-98b5a79a69ff/bin/uautomizer-vX5HgA9Q3a/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