./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/fib_unsafe-12-racy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a 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_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/fib_unsafe-12-racy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R --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 c4525591fa85ffc9750f318a48c09fdd29dc0d26cd65c6303a681f57303fc1a4 --- 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-38b53e6 [2022-11-25 15:34:29,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:34:29,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:34:29,044 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:34:29,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:34:29,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:34:29,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:34:29,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:34:29,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:34:29,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:34:29,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:34:29,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:34:29,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:34:29,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:34:29,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:34:29,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:34:29,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:34:29,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:34:29,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:34:29,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:34:29,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:34:29,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:34:29,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:34:29,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:34:29,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:34:29,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:34:29,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:34:29,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:34:29,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:34:29,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:34:29,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:34:29,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:34:29,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:34:29,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:34:29,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:34:29,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:34:29,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:34:29,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:34:29,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:34:29,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:34:29,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:34:29,095 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 15:34:29,131 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:34:29,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:34:29,132 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:34:29,132 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:34:29,133 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:34:29,133 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:34:29,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:34:29,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:34:29,138 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:34:29,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:34:29,140 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:34:29,140 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:34:29,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:34:29,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:34:29,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:34:29,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:34:29,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:34:29,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:34:29,142 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 15:34:29,142 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:34:29,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:34:29,143 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:34:29,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:34:29,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:34:29,144 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:34:29,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:34:29,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:34:29,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:34:29,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:34:29,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:34:29,145 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:34:29,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:34:29,146 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:34:29,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:34:29,147 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:34:29,147 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:34:29,148 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4525591fa85ffc9750f318a48c09fdd29dc0d26cd65c6303a681f57303fc1a4 [2022-11-25 15:34:29,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:34:29,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:34:29,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:34:29,461 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:34:29,462 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:34:29,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread/fib_unsafe-12-racy.i [2022-11-25 15:34:32,479 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:34:32,790 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:34:32,790 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/sv-benchmarks/c/pthread/fib_unsafe-12-racy.i [2022-11-25 15:34:32,802 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/data/33d577703/0954563188974f11ae36642dce3657d8/FLAG0fa2cb2df [2022-11-25 15:34:32,816 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/data/33d577703/0954563188974f11ae36642dce3657d8 [2022-11-25 15:34:32,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:34:32,820 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:34:32,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:34:32,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:34:32,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:34:32,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:34:32" (1/1) ... [2022-11-25 15:34:32,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c214160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:32, skipping insertion in model container [2022-11-25 15:34:32,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:34:32" (1/1) ... [2022-11-25 15:34:32,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:34:32,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:34:33,209 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:34:33,210 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:34:33,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:34:33,217 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:34:33,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:34:33,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:34:33,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:34:33,224 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:34:33,229 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_bc04d251-26b3-4c3a-a2db-e458400f122a/sv-benchmarks/c/pthread/fib_unsafe-12-racy.i[30813,30826] [2022-11-25 15:34:33,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:34:33,240 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:34:33,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:34:33,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:34:33,280 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:34:33,281 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:34:33,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:34:33,286 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:34:33,286 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:34:33,287 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:34:33,289 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_bc04d251-26b3-4c3a-a2db-e458400f122a/sv-benchmarks/c/pthread/fib_unsafe-12-racy.i[30813,30826] [2022-11-25 15:34:33,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:34:33,329 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:34:33,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33 WrapperNode [2022-11-25 15:34:33,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:34:33,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:34:33,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:34:33,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:34:33,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:33,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:33,382 INFO L138 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 122 [2022-11-25 15:34:33,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:34:33,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:34:33,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:34:33,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:34:33,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:33,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:33,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:33,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:33,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:33,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:33,413 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:33,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:33,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:34:33,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:34:33,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:34:33,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:34:33,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:33,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:34:33,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:34:33,466 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:34:33,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:34:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-25 15:34:33,505 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-25 15:34:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-25 15:34:33,505 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-25 15:34:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:34:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 15:34:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:34:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:34:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:34:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:34:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 15:34:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:34:33,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:34:33,509 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 15:34:33,656 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:34:33,659 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:34:34,072 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:34:34,134 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:34:34,134 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-25 15:34:34,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:34:34 BoogieIcfgContainer [2022-11-25 15:34:34,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:34:34,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:34:34,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:34:34,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:34:34,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:34:32" (1/3) ... [2022-11-25 15:34:34,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d0f863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:34:34, skipping insertion in model container [2022-11-25 15:34:34,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (2/3) ... [2022-11-25 15:34:34,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d0f863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:34:34, skipping insertion in model container [2022-11-25 15:34:34,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:34:34" (3/3) ... [2022-11-25 15:34:34,149 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_unsafe-12-racy.i [2022-11-25 15:34:34,162 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 15:34:34,173 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:34:34,173 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-11-25 15:34:34,173 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 15:34:34,267 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 15:34:34,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 193 transitions, 396 flow [2022-11-25 15:34:34,482 INFO L130 PetriNetUnfolder]: 8/191 cut-off events. [2022-11-25 15:34:34,483 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:34:34,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 191 events. 8/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 366 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 159. Up to 2 conditions per place. [2022-11-25 15:34:34,497 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 193 transitions, 396 flow [2022-11-25 15:34:34,504 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 191 transitions, 388 flow [2022-11-25 15:34:34,509 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 15:34:34,525 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 190 places, 191 transitions, 388 flow [2022-11-25 15:34:34,528 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 190 places, 191 transitions, 388 flow [2022-11-25 15:34:34,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 191 transitions, 388 flow [2022-11-25 15:34:34,584 INFO L130 PetriNetUnfolder]: 8/191 cut-off events. [2022-11-25 15:34:34,585 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:34:34,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 191 events. 8/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 365 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 159. Up to 2 conditions per place. [2022-11-25 15:34:34,595 INFO L119 LiptonReduction]: Number of co-enabled transitions 13080 [2022-11-25 15:34:39,690 INFO L134 LiptonReduction]: Checked pairs total: 13965 [2022-11-25 15:34:39,690 INFO L136 LiptonReduction]: Total number of compositions: 214 [2022-11-25 15:34:39,708 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:34:39,715 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;@74beaa64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:34:39,715 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2022-11-25 15:34:39,717 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 15:34:39,717 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:34:39,717 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:34:39,718 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 15:34:39,719 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-25 15:34:39,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:34:39,724 INFO L85 PathProgramCache]: Analyzing trace with hash 776, now seen corresponding path program 1 times [2022-11-25 15:34:39,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:34:39,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323090984] [2022-11-25 15:34:39,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:39,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:34:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:39,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:34:39,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:34:39,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323090984] [2022-11-25 15:34:39,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323090984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:34:39,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:34:39,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 15:34:39,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319860501] [2022-11-25 15:34:39,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:34:39,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 15:34:39,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:34:39,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 15:34:39,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 15:34:39,919 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 407 [2022-11-25 15:34:39,925 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 102 flow. Second operand has 2 states, 2 states have (on average 174.5) internal successors, (349), 2 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) [2022-11-25 15:34:39,926 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:34:39,926 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 407 [2022-11-25 15:34:39,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:34:40,022 INFO L130 PetriNetUnfolder]: 97/173 cut-off events. [2022-11-25 15:34:40,023 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 15:34:40,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 173 events. 97/173 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 490 event pairs, 56 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 324. Up to 150 conditions per place. [2022-11-25 15:34:40,029 INFO L137 encePairwiseOnDemand]: 378/407 looper letters, 14 selfloop transitions, 0 changer transitions 1/19 dead transitions. [2022-11-25 15:34:40,030 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 74 flow [2022-11-25 15:34:40,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 15:34:40,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 15:34:40,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 392 transitions. [2022-11-25 15:34:40,052 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48157248157248156 [2022-11-25 15:34:40,053 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 392 transitions. [2022-11-25 15:34:40,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 392 transitions. [2022-11-25 15:34:40,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:34:40,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 392 transitions. [2022-11-25 15:34:40,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 196.0) internal successors, (392), 2 states have internal predecessors, (392), 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) [2022-11-25 15:34:40,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 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) [2022-11-25 15:34:40,084 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 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) [2022-11-25 15:34:40,086 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 102 flow. Second operand 2 states and 392 transitions. [2022-11-25 15:34:40,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 74 flow [2022-11-25 15:34:40,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 19 transitions, 72 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 15:34:40,091 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 40 flow [2022-11-25 15:34:40,094 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=22, PETRI_TRANSITIONS=18} [2022-11-25 15:34:40,099 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -29 predicate places. [2022-11-25 15:34:40,100 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 40 flow [2022-11-25 15:34:40,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 174.5) internal successors, (349), 2 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) [2022-11-25 15:34:40,106 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:34:40,106 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:34:40,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:34:40,107 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-25 15:34:40,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:34:40,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1383983550, now seen corresponding path program 1 times [2022-11-25 15:34:40,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:34:40,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600344977] [2022-11-25 15:34:40,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:40,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:34:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:40,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:34:40,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:34:40,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600344977] [2022-11-25 15:34:40,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600344977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:34:40,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:34:40,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:34:40,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326665667] [2022-11-25 15:34:40,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:34:40,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:34:40,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:34:40,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:34:40,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:34:40,379 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 407 [2022-11-25 15:34:40,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 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) [2022-11-25 15:34:40,381 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:34:40,381 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 407 [2022-11-25 15:34:40,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:34:40,458 INFO L130 PetriNetUnfolder]: 97/185 cut-off events. [2022-11-25 15:34:40,458 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:34:40,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 185 events. 97/185 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 565 event pairs, 20 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 342. Up to 91 conditions per place. [2022-11-25 15:34:40,460 INFO L137 encePairwiseOnDemand]: 404/407 looper letters, 19 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2022-11-25 15:34:40,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 25 transitions, 96 flow [2022-11-25 15:34:40,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:34:40,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:34:40,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 532 transitions. [2022-11-25 15:34:40,463 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4357084357084357 [2022-11-25 15:34:40,463 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 532 transitions. [2022-11-25 15:34:40,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 532 transitions. [2022-11-25 15:34:40,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:34:40,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 532 transitions. [2022-11-25 15:34:40,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 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) [2022-11-25 15:34:40,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 407.0) internal successors, (1628), 4 states have internal predecessors, (1628), 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) [2022-11-25 15:34:40,472 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 407.0) internal successors, (1628), 4 states have internal predecessors, (1628), 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) [2022-11-25 15:34:40,472 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 40 flow. Second operand 3 states and 532 transitions. [2022-11-25 15:34:40,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 25 transitions, 96 flow [2022-11-25 15:34:40,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 25 transitions, 96 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 15:34:40,474 INFO L231 Difference]: Finished difference. Result has 24 places, 19 transitions, 52 flow [2022-11-25 15:34:40,474 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=24, PETRI_TRANSITIONS=19} [2022-11-25 15:34:40,475 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -27 predicate places. [2022-11-25 15:34:40,475 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 19 transitions, 52 flow [2022-11-25 15:34:40,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 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) [2022-11-25 15:34:40,476 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:34:40,477 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:34:40,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:34:40,477 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-25 15:34:40,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:34:40,480 INFO L85 PathProgramCache]: Analyzing trace with hash -46153869, now seen corresponding path program 1 times [2022-11-25 15:34:40,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:34:40,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588555097] [2022-11-25 15:34:40,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:40,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:34:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:40,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:34:40,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:34:40,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588555097] [2022-11-25 15:34:40,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588555097] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:34:40,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517001148] [2022-11-25 15:34:40,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:40,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:34:40,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:34:40,625 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:34:40,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 15:34:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:40,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:34:40,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:34:40,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 15:34:40,779 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:34:40,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517001148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:34:40,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:34:40,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 15:34:40,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264802765] [2022-11-25 15:34:40,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:34:40,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:34:40,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:34:40,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:34:40,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:34:40,800 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 407 [2022-11-25 15:34:40,801 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 19 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 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) [2022-11-25 15:34:40,801 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:34:40,801 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 407 [2022-11-25 15:34:40,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:34:40,913 INFO L130 PetriNetUnfolder]: 203/328 cut-off events. [2022-11-25 15:34:40,913 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-11-25 15:34:40,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 712 conditions, 328 events. 203/328 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1013 event pairs, 51 based on Foata normal form. 0/221 useless extension candidates. Maximal degree in co-relation 707. Up to 156 conditions per place. [2022-11-25 15:34:40,915 INFO L137 encePairwiseOnDemand]: 402/407 looper letters, 25 selfloop transitions, 4 changer transitions 0/31 dead transitions. [2022-11-25 15:34:40,915 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 31 transitions, 141 flow [2022-11-25 15:34:40,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:34:40,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:34:40,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 541 transitions. [2022-11-25 15:34:40,933 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4430794430794431 [2022-11-25 15:34:40,933 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 541 transitions. [2022-11-25 15:34:40,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 541 transitions. [2022-11-25 15:34:40,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:34:40,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 541 transitions. [2022-11-25 15:34:40,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 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) [2022-11-25 15:34:40,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 407.0) internal successors, (1628), 4 states have internal predecessors, (1628), 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) [2022-11-25 15:34:40,938 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 407.0) internal successors, (1628), 4 states have internal predecessors, (1628), 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) [2022-11-25 15:34:40,939 INFO L175 Difference]: Start difference. First operand has 24 places, 19 transitions, 52 flow. Second operand 3 states and 541 transitions. [2022-11-25 15:34:40,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 31 transitions, 141 flow [2022-11-25 15:34:40,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 31 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:34:40,956 INFO L231 Difference]: Finished difference. Result has 27 places, 23 transitions, 86 flow [2022-11-25 15:34:40,956 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=27, PETRI_TRANSITIONS=23} [2022-11-25 15:34:40,957 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -24 predicate places. [2022-11-25 15:34:40,957 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 23 transitions, 86 flow [2022-11-25 15:34:40,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 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) [2022-11-25 15:34:40,958 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:34:40,958 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:34:40,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 15:34:41,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:34:41,164 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-25 15:34:41,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:34:41,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1871494443, now seen corresponding path program 1 times [2022-11-25 15:34:41,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:34:41,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798915763] [2022-11-25 15:34:41,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:41,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:34:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:41,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:34:41,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:34:41,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798915763] [2022-11-25 15:34:41,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798915763] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:34:41,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917500236] [2022-11-25 15:34:41,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:41,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:34:41,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:34:41,255 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:34:41,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 15:34:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:41,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:34:41,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:34:41,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:34:41,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:34:41,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:34:41,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917500236] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:34:41,496 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:34:41,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-25 15:34:41,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153813840] [2022-11-25 15:34:41,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:34:41,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:34:41,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:34:41,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:34:41,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:34:41,524 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 407 [2022-11-25 15:34:41,525 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 23 transitions, 86 flow. Second operand has 7 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 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) [2022-11-25 15:34:41,526 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:34:41,526 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 407 [2022-11-25 15:34:41,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:34:41,664 INFO L130 PetriNetUnfolder]: 271/450 cut-off events. [2022-11-25 15:34:41,665 INFO L131 PetriNetUnfolder]: For 202/205 co-relation queries the response was YES. [2022-11-25 15:34:41,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1161 conditions, 450 events. 271/450 cut-off events. For 202/205 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1438 event pairs, 42 based on Foata normal form. 45/479 useless extension candidates. Maximal degree in co-relation 1155. Up to 182 conditions per place. [2022-11-25 15:34:41,668 INFO L137 encePairwiseOnDemand]: 404/407 looper letters, 48 selfloop transitions, 5 changer transitions 0/58 dead transitions. [2022-11-25 15:34:41,669 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 58 transitions, 316 flow [2022-11-25 15:34:41,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 15:34:41,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 15:34:41,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1059 transitions. [2022-11-25 15:34:41,672 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43366093366093367 [2022-11-25 15:34:41,673 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1059 transitions. [2022-11-25 15:34:41,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1059 transitions. [2022-11-25 15:34:41,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:34:41,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1059 transitions. [2022-11-25 15:34:41,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 176.5) internal successors, (1059), 6 states have internal predecessors, (1059), 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) [2022-11-25 15:34:41,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 407.0) internal successors, (2849), 7 states have internal predecessors, (2849), 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) [2022-11-25 15:34:41,683 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 407.0) internal successors, (2849), 7 states have internal predecessors, (2849), 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) [2022-11-25 15:34:41,683 INFO L175 Difference]: Start difference. First operand has 27 places, 23 transitions, 86 flow. Second operand 6 states and 1059 transitions. [2022-11-25 15:34:41,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 58 transitions, 316 flow [2022-11-25 15:34:41,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 58 transitions, 292 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 15:34:41,688 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 120 flow [2022-11-25 15:34:41,688 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=120, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2022-11-25 15:34:41,690 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -18 predicate places. [2022-11-25 15:34:41,690 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 120 flow [2022-11-25 15:34:41,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 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) [2022-11-25 15:34:41,691 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:34:41,692 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:34:41,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 15:34:41,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:34:41,897 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-25 15:34:41,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:34:41,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1299719790, now seen corresponding path program 2 times [2022-11-25 15:34:41,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:34:41,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103057465] [2022-11-25 15:34:41,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:41,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:34:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:42,090 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:34:42,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:34:42,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103057465] [2022-11-25 15:34:42,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103057465] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:34:42,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771442989] [2022-11-25 15:34:42,091 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:34:42,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:34:42,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:34:42,092 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:34:42,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 15:34:42,199 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 15:34:42,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:34:42,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 15:34:42,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:34:42,230 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:34:42,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:34:42,313 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:34:42,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771442989] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:34:42,313 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:34:42,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-11-25 15:34:42,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946093480] [2022-11-25 15:34:42,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:34:42,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 15:34:42,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:34:42,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 15:34:42,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:34:42,346 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 407 [2022-11-25 15:34:42,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 120 flow. Second operand has 13 states, 13 states have (on average 170.53846153846155) internal successors, (2217), 13 states have internal predecessors, (2217), 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) [2022-11-25 15:34:42,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:34:42,350 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 407 [2022-11-25 15:34:42,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:34:42,625 INFO L130 PetriNetUnfolder]: 451/720 cut-off events. [2022-11-25 15:34:42,625 INFO L131 PetriNetUnfolder]: For 810/813 co-relation queries the response was YES. [2022-11-25 15:34:42,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2055 conditions, 720 events. 451/720 cut-off events. For 810/813 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2233 event pairs, 42 based on Foata normal form. 90/791 useless extension candidates. Maximal degree in co-relation 2046. Up to 182 conditions per place. [2022-11-25 15:34:42,631 INFO L137 encePairwiseOnDemand]: 404/407 looper letters, 96 selfloop transitions, 11 changer transitions 0/112 dead transitions. [2022-11-25 15:34:42,631 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 112 transitions, 610 flow [2022-11-25 15:34:42,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 15:34:42,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 15:34:42,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2118 transitions. [2022-11-25 15:34:42,638 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43366093366093367 [2022-11-25 15:34:42,639 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2118 transitions. [2022-11-25 15:34:42,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2118 transitions. [2022-11-25 15:34:42,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:34:42,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2118 transitions. [2022-11-25 15:34:42,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 176.5) internal successors, (2118), 12 states have internal predecessors, (2118), 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) [2022-11-25 15:34:42,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 407.0) internal successors, (5291), 13 states have internal predecessors, (5291), 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) [2022-11-25 15:34:42,655 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 407.0) internal successors, (5291), 13 states have internal predecessors, (5291), 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) [2022-11-25 15:34:42,655 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 120 flow. Second operand 12 states and 2118 transitions. [2022-11-25 15:34:42,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 112 transitions, 610 flow [2022-11-25 15:34:42,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 112 transitions, 596 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-11-25 15:34:42,660 INFO L231 Difference]: Finished difference. Result has 49 places, 32 transitions, 202 flow [2022-11-25 15:34:42,660 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=202, PETRI_PLACES=49, PETRI_TRANSITIONS=32} [2022-11-25 15:34:42,661 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -2 predicate places. [2022-11-25 15:34:42,661 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 32 transitions, 202 flow [2022-11-25 15:34:42,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 170.53846153846155) internal successors, (2217), 13 states have internal predecessors, (2217), 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) [2022-11-25 15:34:42,663 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:34:42,663 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:34:42,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 15:34:42,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:34:42,869 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-25 15:34:42,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:34:42,870 INFO L85 PathProgramCache]: Analyzing trace with hash 465616206, now seen corresponding path program 3 times [2022-11-25 15:34:42,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:34:42,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42877119] [2022-11-25 15:34:42,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:42,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:34:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:43,091 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:34:43,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:34:43,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42877119] [2022-11-25 15:34:43,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42877119] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:34:43,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604686470] [2022-11-25 15:34:43,092 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 15:34:43,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:34:43,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:34:43,093 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:34:43,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 15:34:43,233 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-25 15:34:43,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:34:43,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 15:34:43,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:34:43,289 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:34:43,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:34:43,550 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:34:43,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604686470] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:34:43,550 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:34:43,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-11-25 15:34:43,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572834927] [2022-11-25 15:34:43,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:34:43,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-25 15:34:43,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:34:43,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-25 15:34:43,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-11-25 15:34:43,616 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 407 [2022-11-25 15:34:43,620 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 32 transitions, 202 flow. Second operand has 25 states, 25 states have (on average 170.28) internal successors, (4257), 25 states have internal predecessors, (4257), 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) [2022-11-25 15:34:43,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:34:43,621 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 407 [2022-11-25 15:34:43,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:34:44,117 INFO L130 PetriNetUnfolder]: 811/1260 cut-off events. [2022-11-25 15:34:44,117 INFO L131 PetriNetUnfolder]: For 9042/9045 co-relation queries the response was YES. [2022-11-25 15:34:44,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4069 conditions, 1260 events. 811/1260 cut-off events. For 9042/9045 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3822 event pairs, 42 based on Foata normal form. 180/1421 useless extension candidates. Maximal degree in co-relation 4053. Up to 316 conditions per place. [2022-11-25 15:34:44,128 INFO L137 encePairwiseOnDemand]: 404/407 looper letters, 192 selfloop transitions, 23 changer transitions 0/220 dead transitions. [2022-11-25 15:34:44,128 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 220 transitions, 1256 flow [2022-11-25 15:34:44,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 15:34:44,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-25 15:34:44,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4236 transitions. [2022-11-25 15:34:44,140 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43366093366093367 [2022-11-25 15:34:44,140 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4236 transitions. [2022-11-25 15:34:44,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4236 transitions. [2022-11-25 15:34:44,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:34:44,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4236 transitions. [2022-11-25 15:34:44,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 176.5) internal successors, (4236), 24 states have internal predecessors, (4236), 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) [2022-11-25 15:34:44,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 407.0) internal successors, (10175), 25 states have internal predecessors, (10175), 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) [2022-11-25 15:34:44,171 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 407.0) internal successors, (10175), 25 states have internal predecessors, (10175), 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) [2022-11-25 15:34:44,172 INFO L175 Difference]: Start difference. First operand has 49 places, 32 transitions, 202 flow. Second operand 24 states and 4236 transitions. [2022-11-25 15:34:44,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 220 transitions, 1256 flow [2022-11-25 15:34:44,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 220 transitions, 1184 flow, removed 31 selfloop flow, removed 5 redundant places. [2022-11-25 15:34:44,186 INFO L231 Difference]: Finished difference. Result has 79 places, 44 transitions, 346 flow [2022-11-25 15:34:44,186 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=346, PETRI_PLACES=79, PETRI_TRANSITIONS=44} [2022-11-25 15:34:44,188 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, 28 predicate places. [2022-11-25 15:34:44,189 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 44 transitions, 346 flow [2022-11-25 15:34:44,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 170.28) internal successors, (4257), 25 states have internal predecessors, (4257), 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) [2022-11-25 15:34:44,192 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:34:44,192 INFO L209 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:34:44,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 15:34:44,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-25 15:34:44,399 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-25 15:34:44,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:34:44,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1592914702, now seen corresponding path program 4 times [2022-11-25 15:34:44,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:34:44,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539941819] [2022-11-25 15:34:44,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:44,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:34:44,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:45,019 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:34:45,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:34:45,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539941819] [2022-11-25 15:34:45,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539941819] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:34:45,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221273489] [2022-11-25 15:34:45,020 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 15:34:45,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:34:45,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:34:45,025 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:34:45,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 15:34:45,179 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 15:34:45,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:34:45,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-25 15:34:45,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:34:45,242 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:34:45,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:34:45,645 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:34:45,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221273489] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:34:45,646 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 15:34:45,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 29 [2022-11-25 15:34:45,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110250706] [2022-11-25 15:34:45,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 15:34:45,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-25 15:34:45,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:34:45,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-25 15:34:45,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2022-11-25 15:34:45,713 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 407 [2022-11-25 15:34:45,719 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 44 transitions, 346 flow. Second operand has 29 states, 29 states have (on average 170.27586206896552) internal successors, (4938), 29 states have internal predecessors, (4938), 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) [2022-11-25 15:34:45,719 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:34:45,719 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 407 [2022-11-25 15:34:45,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:34:46,254 INFO L130 PetriNetUnfolder]: 931/1440 cut-off events. [2022-11-25 15:34:46,255 INFO L131 PetriNetUnfolder]: For 17456/17459 co-relation queries the response was YES. [2022-11-25 15:34:46,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4845 conditions, 1440 events. 931/1440 cut-off events. For 17456/17459 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4348 event pairs, 42 based on Foata normal form. 60/1481 useless extension candidates. Maximal degree in co-relation 4817. Up to 313 conditions per place. [2022-11-25 15:34:46,268 INFO L137 encePairwiseOnDemand]: 404/407 looper letters, 224 selfloop transitions, 27 changer transitions 0/256 dead transitions. [2022-11-25 15:34:46,268 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 256 transitions, 1504 flow [2022-11-25 15:34:46,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-25 15:34:46,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-25 15:34:46,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4932 transitions. [2022-11-25 15:34:46,280 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4327834327834328 [2022-11-25 15:34:46,280 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4932 transitions. [2022-11-25 15:34:46,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4932 transitions. [2022-11-25 15:34:46,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:34:46,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4932 transitions. [2022-11-25 15:34:46,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 176.14285714285714) internal successors, (4932), 28 states have internal predecessors, (4932), 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) [2022-11-25 15:34:46,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 407.0) internal successors, (11803), 29 states have internal predecessors, (11803), 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) [2022-11-25 15:34:46,317 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 407.0) internal successors, (11803), 29 states have internal predecessors, (11803), 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) [2022-11-25 15:34:46,317 INFO L175 Difference]: Start difference. First operand has 79 places, 44 transitions, 346 flow. Second operand 28 states and 4932 transitions. [2022-11-25 15:34:46,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 256 transitions, 1504 flow [2022-11-25 15:34:46,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 256 transitions, 1400 flow, removed 41 selfloop flow, removed 11 redundant places. [2022-11-25 15:34:46,338 INFO L231 Difference]: Finished difference. Result has 99 places, 48 transitions, 354 flow [2022-11-25 15:34:46,338 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=354, PETRI_PLACES=99, PETRI_TRANSITIONS=48} [2022-11-25 15:34:46,339 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, 48 predicate places. [2022-11-25 15:34:46,339 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 48 transitions, 354 flow [2022-11-25 15:34:46,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 170.27586206896552) internal successors, (4938), 29 states have internal predecessors, (4938), 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) [2022-11-25 15:34:46,342 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:34:46,342 INFO L209 CegarLoopForPetriNet]: trace histogram [26, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:34:46,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-25 15:34:46,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:34:46,549 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-25 15:34:46,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:34:46,549 INFO L85 PathProgramCache]: Analyzing trace with hash 232200782, now seen corresponding path program 5 times [2022-11-25 15:34:46,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:34:46,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139756576] [2022-11-25 15:34:46,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:46,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:34:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:34:46,629 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:34:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:34:46,736 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:34:46,737 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 15:34:46,738 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2022-11-25 15:34:46,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2022-11-25 15:34:46,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2022-11-25 15:34:46,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2022-11-25 15:34:46,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2022-11-25 15:34:46,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2022-11-25 15:34:46,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2022-11-25 15:34:46,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2022-11-25 15:34:46,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2022-11-25 15:34:46,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2022-11-25 15:34:46,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2022-11-25 15:34:46,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2022-11-25 15:34:46,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2022-11-25 15:34:46,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2022-11-25 15:34:46,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2022-11-25 15:34:46,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2022-11-25 15:34:46,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 46 remaining) [2022-11-25 15:34:46,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 46 remaining) [2022-11-25 15:34:46,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2022-11-25 15:34:46,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2022-11-25 15:34:46,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2022-11-25 15:34:46,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2022-11-25 15:34:46,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2022-11-25 15:34:46,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2022-11-25 15:34:46,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2022-11-25 15:34:46,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2022-11-25 15:34:46,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2022-11-25 15:34:46,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2022-11-25 15:34:46,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2022-11-25 15:34:46,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2022-11-25 15:34:46,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2022-11-25 15:34:46,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2022-11-25 15:34:46,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2022-11-25 15:34:46,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2022-11-25 15:34:46,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2022-11-25 15:34:46,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2022-11-25 15:34:46,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2022-11-25 15:34:46,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2022-11-25 15:34:46,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2022-11-25 15:34:46,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2022-11-25 15:34:46,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2022-11-25 15:34:46,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2022-11-25 15:34:46,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2022-11-25 15:34:46,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2022-11-25 15:34:46,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2022-11-25 15:34:46,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2022-11-25 15:34:46,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 15:34:46,752 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1] [2022-11-25 15:34:46,759 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 15:34:46,760 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:34:46,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:34:46 BasicIcfg [2022-11-25 15:34:46,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:34:46,875 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:34:46,875 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:34:46,876 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:34:46,876 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:34:34" (3/4) ... [2022-11-25 15:34:46,879 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 15:34:46,879 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:34:46,880 INFO L158 Benchmark]: Toolchain (without parser) took 14059.53ms. Allocated memory was 142.6MB in the beginning and 251.7MB in the end (delta: 109.1MB). Free memory was 108.7MB in the beginning and 180.4MB in the end (delta: -71.7MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2022-11-25 15:34:46,880 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory was 65.1MB in the beginning and 64.8MB in the end (delta: 321.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:34:46,881 INFO L158 Benchmark]: CACSL2BoogieTranslator took 508.26ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 88.0MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 15:34:46,881 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.04ms. Allocated memory is still 142.6MB. Free memory was 88.0MB in the beginning and 85.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:34:46,882 INFO L158 Benchmark]: Boogie Preprocessor took 34.25ms. Allocated memory is still 142.6MB. Free memory was 85.9MB in the beginning and 83.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:34:46,882 INFO L158 Benchmark]: RCFGBuilder took 719.13ms. Allocated memory is still 142.6MB. Free memory was 83.8MB in the beginning and 62.3MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 15:34:46,882 INFO L158 Benchmark]: TraceAbstraction took 12734.60ms. Allocated memory was 142.6MB in the beginning and 251.7MB in the end (delta: 109.1MB). Free memory was 61.5MB in the beginning and 180.4MB in the end (delta: -118.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:34:46,883 INFO L158 Benchmark]: Witness Printer took 4.08ms. Allocated memory is still 251.7MB. Free memory is still 180.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:34:46,885 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory was 65.1MB in the beginning and 64.8MB in the end (delta: 321.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 508.26ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 88.0MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.04ms. Allocated memory is still 142.6MB. Free memory was 88.0MB in the beginning and 85.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.25ms. Allocated memory is still 142.6MB. Free memory was 85.9MB in the beginning and 83.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 719.13ms. Allocated memory is still 142.6MB. Free memory was 83.8MB in the beginning and 62.3MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 12734.60ms. Allocated memory was 142.6MB in the beginning and 251.7MB in the end (delta: 109.1MB). Free memory was 61.5MB in the beginning and 180.4MB in the end (delta: -118.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.08ms. Allocated memory is still 251.7MB. Free memory is still 180.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.2s, 190 PlacesBefore, 51 PlacesAfterwards, 191 TransitionsBefore, 48 TransitionsAfterwards, 13080 CoEnabledTransitionPairs, 8 FixpointIterations, 35 TrivialSequentialCompositions, 163 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 4 ChoiceCompositions, 214 TotalNumberOfCompositions, 13965 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12121, independent: 12009, independent conditional: 0, independent unconditional: 12009, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8089, independent: 8034, independent conditional: 0, independent unconditional: 8034, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8089, independent: 7936, independent conditional: 0, independent unconditional: 7936, dependent: 153, dependent conditional: 0, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 153, independent: 98, independent conditional: 0, independent unconditional: 98, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 227, independent: 103, independent conditional: 0, independent unconditional: 103, dependent: 124, dependent conditional: 0, dependent unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12121, independent: 3975, independent conditional: 0, independent unconditional: 3975, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 8089, unknown conditional: 0, unknown unconditional: 8089] , Statistics on independence cache: Total cache size (in pairs): 185, Positive cache size: 175, Positive conditional cache size: 0, Positive unconditional cache size: 175, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 725]: Data race detected Data race detected The following path leads to a data race: [L683] 0 int i, j; [L686] 0 int p, q; [L703] 0 int cur = 1, prev = 0, next = 0; [L704] 0 int x; [L714] 0 pthread_t id1, id2; [L716] 0 i = 1 [L719] 0 j = 1 [L721] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(argc)=196419, arg={0:0}, argc=196419, argv={196420:196421}, argv={196420:196421}, cur=1, i=1, id1={3:0}, id2={5:0}, j=1, next=0, p=0, prev=0, pthread_create(&id1, ((void *)0), t1, ((void *)0))=-1, q=0, x=0] [L688] 1 p = 0 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L722] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(argc)=196419, arg={0:0}, arg={0:0}, arg={0:0}, argc=196419, argv={196420:196421}, argv={196420:196421}, cur=1, i=1, id1={3:0}, id2={5:0}, j=1, next=0, p=0, prev=0, pthread_create(&id2, ((void *)0), t2, ((void *)0))=0, q=0, x=0] [L723] CALL, EXPR 0 fib() [L706] 0 x = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=377, p=0, prev=233, q=0, x=13] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=610, p=0, prev=377, q=0, x=14] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=987, p=0, prev=610, q=0, x=15] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=2584, i=1, j=1, next=2584, p=0, prev=1597, q=0, x=17] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=4181, i=1, j=1, next=4181, p=0, prev=2584, q=0, x=18] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=6765, i=1, j=1, next=6765, p=0, prev=4181, q=0, x=19] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=10946, i=1, j=1, next=10946, p=0, prev=6765, q=0, x=20] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=17711, i=1, j=1, next=17711, p=0, prev=10946, q=0, x=21] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=28657, i=1, j=1, next=28657, p=0, prev=17711, q=0, x=22] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=46368, i=1, j=1, next=46368, p=0, prev=28657, q=0, x=23] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=75025, i=1, j=1, next=75025, p=0, prev=46368, q=0, x=24] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=121393, i=1, j=1, next=121393, p=0, prev=75025, q=0, x=25] [L706] 0 x < 26 [L706] COND TRUE 0 x < 26 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=1, j=1, next=196418, p=0, prev=121393, q=0, x=26] [L706] 0 x < 26 [L706] COND FALSE 0 !(x < 26) [L711] 0 return prev; [L723] RET, EXPR 0 fib() [L723] 0 int correct = fib(); [L725] 0 i < correct VAL [\old(argc)=196419, arg={0:0}, arg={0:0}, arg={0:0}, argc=196419, argv={196420:196421}, argv={196420:196421}, correct=121393, cur=196418, i=1, id1={3:0}, id2={5:0}, j=1, next=196418, p=0, prev=121393, q=0, x=26] [L688] 1 p < 12 [L688] COND TRUE 1 p < 12 [L690] EXPR 1 i + j [L690] 1 i = i + j [L688] 1 p++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=196418, i=2, j=1, next=196418, p=1, prev=121393, q=0, x=26] [L725] 0 i < correct VAL [\old(argc)=196419, arg={0:0}, arg={0:0}, arg={0:0}, argc=196419, argv={196420:196421}, argv={196420:196421}, correct=121393, cur=196418, i=2, id1={3:0}, id2={5:0}, j=1, next=196418, p=1, prev=121393, q=0, x=26] Now there is a data race on ~i~0 between C: i = i + j [690] and C: i < correct [725] - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 246 locations, 46 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: 12.4s, OverallIterations: 8, TraceHistogramMax: 26, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1148 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1123 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 809 IncrementalHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 4 mSDtfsCounter, 809 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 201 GetRequests, 111 SyntacticMatches, 20 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=354occurred in iteration=7, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 205 NumberOfCodeBlocks, 205 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 227 ConstructedInterpolants, 0 QuantifiedInterpolants, 481 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1085 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 16 InterpolantComputations, 3 PerfectInterpolantSequences, 1/959 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 15:34:46,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc04d251-26b3-4c3a-a2db-e458400f122a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE