./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/fib_safe-5-racy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/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_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/fib_safe-5-racy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/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_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/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 40fcfd4444bd180f6e5508f0972ed92e70894b01f23e03dc2e761819c6d5a859 --- 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 17:54:24,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:54:24,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:54:24,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:54:24,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:54:24,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:54:24,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:54:24,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:54:24,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:54:24,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:54:24,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:54:24,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:54:24,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:54:24,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:54:24,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:54:24,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:54:24,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:54:24,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:54:24,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:54:24,659 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:54:24,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:54:24,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:54:24,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:54:24,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:54:24,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:54:24,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:54:24,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:54:24,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:54:24,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:54:24,676 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:54:24,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:54:24,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:54:24,679 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:54:24,680 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:54:24,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:54:24,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:54:24,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:54:24,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:54:24,684 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:54:24,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:54:24,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:54:24,688 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 17:54:24,718 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:54:24,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:54:24,719 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:54:24,719 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:54:24,720 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:54:24,720 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:54:24,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:54:24,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:54:24,722 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:54:24,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:54:24,723 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:54:24,723 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:54:24,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:54:24,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:54:24,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:54:24,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:54:24,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:54:24,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:54:24,725 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 17:54:24,726 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:54:24,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:54:24,726 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:54:24,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:54:24,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:54:24,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:54:24,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:54:24,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:54:24,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:54:24,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:54:24,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:54:24,729 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:54:24,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:54:24,730 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:54:24,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:54:24,731 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:54:24,731 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:54:24,731 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_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40fcfd4444bd180f6e5508f0972ed92e70894b01f23e03dc2e761819c6d5a859 [2022-11-25 17:54:25,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:54:25,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:54:25,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:54:25,120 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:54:25,120 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:54:25,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread/fib_safe-5-racy.i [2022-11-25 17:54:28,523 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:54:28,852 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:54:28,852 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/sv-benchmarks/c/pthread/fib_safe-5-racy.i [2022-11-25 17:54:28,869 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/data/54d07e16b/3d6a7f7a7d6f4075bf1e23f077d546da/FLAG4b985483c [2022-11-25 17:54:28,897 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/data/54d07e16b/3d6a7f7a7d6f4075bf1e23f077d546da [2022-11-25 17:54:28,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:54:28,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:54:28,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:54:28,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:54:28,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:54:28,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:54:28" (1/1) ... [2022-11-25 17:54:28,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@455ee976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:28, skipping insertion in model container [2022-11-25 17:54:28,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:54:28" (1/1) ... [2022-11-25 17:54:28,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:54:28,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:54:29,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:54:29,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:54:29,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:54:29,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:54:29,484 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:54:29,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:54:29,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:54:29,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:54:29,492 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_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/sv-benchmarks/c/pthread/fib_safe-5-racy.i[30813,30826] [2022-11-25 17:54:29,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:54:29,507 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:54:29,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:54:29,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:54:29,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:54:29,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:54:29,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:54:29,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:54:29,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:54:29,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:54:29,591 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_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/sv-benchmarks/c/pthread/fib_safe-5-racy.i[30813,30826] [2022-11-25 17:54:29,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:54:29,628 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:54:29,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:29 WrapperNode [2022-11-25 17:54:29,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:54:29,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:54:29,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:54:29,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:54:29,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:29" (1/1) ... [2022-11-25 17:54:29,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:29" (1/1) ... [2022-11-25 17:54:29,678 INFO L138 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 122 [2022-11-25 17:54:29,679 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:54:29,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:54:29,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:54:29,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:54:29,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:29" (1/1) ... [2022-11-25 17:54:29,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:29" (1/1) ... [2022-11-25 17:54:29,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:29" (1/1) ... [2022-11-25 17:54:29,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:29" (1/1) ... [2022-11-25 17:54:29,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:29" (1/1) ... [2022-11-25 17:54:29,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:29" (1/1) ... [2022-11-25 17:54:29,724 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:29" (1/1) ... [2022-11-25 17:54:29,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:29" (1/1) ... [2022-11-25 17:54:29,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:54:29,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:54:29,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:54:29,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:54:29,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:29" (1/1) ... [2022-11-25 17:54:29,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:54:29,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:54:29,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:54:29,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:54:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-25 17:54:29,815 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-25 17:54:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-25 17:54:29,815 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-25 17:54:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:54:29,816 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 17:54:29,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:54:29,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:54:29,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:54:29,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:54:29,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 17:54:29,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:54:29,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:54:29,819 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 17:54:29,985 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:54:29,988 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:54:30,419 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:54:30,543 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:54:30,543 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-25 17:54:30,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:54:30 BoogieIcfgContainer [2022-11-25 17:54:30,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:54:30,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:54:30,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:54:30,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:54:30,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:54:28" (1/3) ... [2022-11-25 17:54:30,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@777189f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:54:30, skipping insertion in model container [2022-11-25 17:54:30,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:29" (2/3) ... [2022-11-25 17:54:30,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@777189f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:54:30, skipping insertion in model container [2022-11-25 17:54:30,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:54:30" (3/3) ... [2022-11-25 17:54:30,555 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-5-racy.i [2022-11-25 17:54:30,592 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:54:30,606 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:54:30,606 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-11-25 17:54:30,606 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:54:30,731 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:54:30,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 193 transitions, 396 flow [2022-11-25 17:54:30,878 INFO L130 PetriNetUnfolder]: 8/191 cut-off events. [2022-11-25 17:54:30,878 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:54:30,890 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 17:54:30,890 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 193 transitions, 396 flow [2022-11-25 17:54:30,898 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 191 transitions, 388 flow [2022-11-25 17:54:30,903 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:54:30,938 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 190 places, 191 transitions, 388 flow [2022-11-25 17:54:30,942 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 190 places, 191 transitions, 388 flow [2022-11-25 17:54:30,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 191 transitions, 388 flow [2022-11-25 17:54:31,064 INFO L130 PetriNetUnfolder]: 8/191 cut-off events. [2022-11-25 17:54:31,067 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:54:31,074 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 17:54:31,084 INFO L119 LiptonReduction]: Number of co-enabled transitions 13080 [2022-11-25 17:54:36,736 INFO L134 LiptonReduction]: Checked pairs total: 13965 [2022-11-25 17:54:36,736 INFO L136 LiptonReduction]: Total number of compositions: 214 [2022-11-25 17:54:36,755 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:54:36,763 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;@29024750, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:54:36,764 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2022-11-25 17:54:36,766 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 17:54:36,766 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:54:36,766 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:54:36,767 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 17:54:36,768 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 17:54:36,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:36,774 INFO L85 PathProgramCache]: Analyzing trace with hash 776, now seen corresponding path program 1 times [2022-11-25 17:54:36,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:36,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159218066] [2022-11-25 17:54:36,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:36,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:36,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:36,965 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 17:54:36,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:36,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159218066] [2022-11-25 17:54:36,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159218066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:36,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:36,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 17:54:36,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683684374] [2022-11-25 17:54:36,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:36,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:54:36,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:37,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:54:37,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:54:37,016 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 407 [2022-11-25 17:54:37,019 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 17:54:37,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:54:37,020 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 407 [2022-11-25 17:54:37,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:54:37,154 INFO L130 PetriNetUnfolder]: 97/173 cut-off events. [2022-11-25 17:54:37,154 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 17:54:37,156 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 17:54:37,161 INFO L137 encePairwiseOnDemand]: 378/407 looper letters, 14 selfloop transitions, 0 changer transitions 1/19 dead transitions. [2022-11-25 17:54:37,161 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 74 flow [2022-11-25 17:54:37,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:54:37,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:54:37,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 392 transitions. [2022-11-25 17:54:37,191 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48157248157248156 [2022-11-25 17:54:37,192 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 392 transitions. [2022-11-25 17:54:37,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 392 transitions. [2022-11-25 17:54:37,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:54:37,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 392 transitions. [2022-11-25 17:54:37,208 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 17:54:37,218 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 17:54:37,220 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 17:54:37,222 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 102 flow. Second operand 2 states and 392 transitions. [2022-11-25 17:54:37,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 74 flow [2022-11-25 17:54:37,226 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 17:54:37,228 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 40 flow [2022-11-25 17:54:37,231 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 17:54:37,237 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -29 predicate places. [2022-11-25 17:54:37,237 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 40 flow [2022-11-25 17:54:37,244 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 17:54:37,244 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:54:37,244 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:54:37,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:54:37,245 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 17:54:37,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:37,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1383983550, now seen corresponding path program 1 times [2022-11-25 17:54:37,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:37,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475397439] [2022-11-25 17:54:37,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:37,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:37,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:37,511 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 17:54:37,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:37,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475397439] [2022-11-25 17:54:37,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475397439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:37,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:37,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:54:37,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341248185] [2022-11-25 17:54:37,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:37,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:54:37,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:37,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:54:37,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:54:37,533 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 407 [2022-11-25 17:54:37,535 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 17:54:37,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:54:37,535 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 407 [2022-11-25 17:54:37,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:54:37,619 INFO L130 PetriNetUnfolder]: 97/185 cut-off events. [2022-11-25 17:54:37,619 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:54:37,620 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 17:54:37,622 INFO L137 encePairwiseOnDemand]: 404/407 looper letters, 19 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2022-11-25 17:54:37,622 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 25 transitions, 96 flow [2022-11-25 17:54:37,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:54:37,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:54:37,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 532 transitions. [2022-11-25 17:54:37,626 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4357084357084357 [2022-11-25 17:54:37,626 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 532 transitions. [2022-11-25 17:54:37,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 532 transitions. [2022-11-25 17:54:37,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:54:37,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 532 transitions. [2022-11-25 17:54:37,629 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 17:54:37,634 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 17:54:37,636 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 17:54:37,636 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 40 flow. Second operand 3 states and 532 transitions. [2022-11-25 17:54:37,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 25 transitions, 96 flow [2022-11-25 17:54:37,637 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 17:54:37,638 INFO L231 Difference]: Finished difference. Result has 24 places, 19 transitions, 52 flow [2022-11-25 17:54:37,638 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 17:54:37,639 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -27 predicate places. [2022-11-25 17:54:37,640 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 19 transitions, 52 flow [2022-11-25 17:54:37,640 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 17:54:37,641 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:54:37,641 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:54:37,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:54:37,642 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 17:54:37,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:37,643 INFO L85 PathProgramCache]: Analyzing trace with hash -46153869, now seen corresponding path program 1 times [2022-11-25 17:54:37,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:37,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841879792] [2022-11-25 17:54:37,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:37,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:37,754 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 17:54:37,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:37,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841879792] [2022-11-25 17:54:37,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841879792] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:54:37,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770964012] [2022-11-25 17:54:37,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:37,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:54:37,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:54:37,760 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:54:37,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:54:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:37,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:54:37,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:54:37,957 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 17:54:37,957 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:54:37,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770964012] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:37,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:54:37,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 17:54:37,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826814905] [2022-11-25 17:54:37,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:37,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:54:37,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:37,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:54:37,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:54:37,979 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 407 [2022-11-25 17:54:37,980 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 17:54:37,981 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:54:37,981 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 407 [2022-11-25 17:54:37,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:54:38,119 INFO L130 PetriNetUnfolder]: 203/328 cut-off events. [2022-11-25 17:54:38,120 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-11-25 17:54:38,121 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 17:54:38,123 INFO L137 encePairwiseOnDemand]: 402/407 looper letters, 25 selfloop transitions, 4 changer transitions 0/31 dead transitions. [2022-11-25 17:54:38,132 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 31 transitions, 141 flow [2022-11-25 17:54:38,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:54:38,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:54:38,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 541 transitions. [2022-11-25 17:54:38,149 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4430794430794431 [2022-11-25 17:54:38,149 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 541 transitions. [2022-11-25 17:54:38,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 541 transitions. [2022-11-25 17:54:38,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:54:38,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 541 transitions. [2022-11-25 17:54:38,152 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 17:54:38,155 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 17:54:38,156 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 17:54:38,157 INFO L175 Difference]: Start difference. First operand has 24 places, 19 transitions, 52 flow. Second operand 3 states and 541 transitions. [2022-11-25 17:54:38,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 31 transitions, 141 flow [2022-11-25 17:54:38,158 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 17:54:38,159 INFO L231 Difference]: Finished difference. Result has 27 places, 23 transitions, 86 flow [2022-11-25 17:54:38,159 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 17:54:38,160 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -24 predicate places. [2022-11-25 17:54:38,160 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 23 transitions, 86 flow [2022-11-25 17:54:38,161 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 17:54:38,161 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:54:38,161 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:54:38,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:54:38,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:54:38,362 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 17:54:38,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:38,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1871494443, now seen corresponding path program 1 times [2022-11-25 17:54:38,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:38,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076004773] [2022-11-25 17:54:38,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:38,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:38,434 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 17:54:38,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:38,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076004773] [2022-11-25 17:54:38,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076004773] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:54:38,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140037979] [2022-11-25 17:54:38,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:38,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:54:38,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:54:38,437 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:54:38,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:54:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:38,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:54:38,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:54:38,600 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 17:54:38,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:54:38,628 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 17:54:38,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140037979] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:54:38,628 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:54:38,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-25 17:54:38,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282659678] [2022-11-25 17:54:38,629 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:54:38,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:54:38,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:38,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:54:38,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:54:38,663 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 407 [2022-11-25 17:54:38,666 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 17:54:38,666 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:54:38,666 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 407 [2022-11-25 17:54:38,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:54:38,794 INFO L130 PetriNetUnfolder]: 271/450 cut-off events. [2022-11-25 17:54:38,794 INFO L131 PetriNetUnfolder]: For 202/205 co-relation queries the response was YES. [2022-11-25 17:54:38,796 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 17:54:38,798 INFO L137 encePairwiseOnDemand]: 404/407 looper letters, 48 selfloop transitions, 5 changer transitions 0/58 dead transitions. [2022-11-25 17:54:38,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 58 transitions, 316 flow [2022-11-25 17:54:38,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:54:38,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:54:38,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1059 transitions. [2022-11-25 17:54:38,803 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43366093366093367 [2022-11-25 17:54:38,803 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1059 transitions. [2022-11-25 17:54:38,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1059 transitions. [2022-11-25 17:54:38,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:54:38,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1059 transitions. [2022-11-25 17:54:38,807 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 17:54:38,812 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 17:54:38,814 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 17:54:38,814 INFO L175 Difference]: Start difference. First operand has 27 places, 23 transitions, 86 flow. Second operand 6 states and 1059 transitions. [2022-11-25 17:54:38,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 58 transitions, 316 flow [2022-11-25 17:54:38,838 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 17:54:38,840 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 120 flow [2022-11-25 17:54:38,840 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 17:54:38,842 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -18 predicate places. [2022-11-25 17:54:38,842 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 120 flow [2022-11-25 17:54:38,843 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 17:54:38,844 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:54:38,844 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:54:38,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-25 17:54:39,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:54:39,054 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 17:54:39,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:39,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1299719790, now seen corresponding path program 2 times [2022-11-25 17:54:39,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:39,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850851115] [2022-11-25 17:54:39,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:39,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:39,297 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 17:54:39,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:39,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850851115] [2022-11-25 17:54:39,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850851115] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:54:39,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8366506] [2022-11-25 17:54:39,303 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:54:39,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:54:39,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:54:39,306 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:54:39,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:54:39,428 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:54:39,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:54:39,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:54:39,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:54:39,455 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 17:54:39,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:54:39,536 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 17:54:39,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8366506] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:54:39,536 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:54:39,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-11-25 17:54:39,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432590082] [2022-11-25 17:54:39,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:54:39,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 17:54:39,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:39,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 17:54:39,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:54:39,577 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 407 [2022-11-25 17:54:39,580 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 17:54:39,580 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:54:39,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 407 [2022-11-25 17:54:39,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:54:39,852 INFO L130 PetriNetUnfolder]: 451/720 cut-off events. [2022-11-25 17:54:39,852 INFO L131 PetriNetUnfolder]: For 810/813 co-relation queries the response was YES. [2022-11-25 17:54:39,854 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 17:54:39,859 INFO L137 encePairwiseOnDemand]: 404/407 looper letters, 96 selfloop transitions, 11 changer transitions 0/112 dead transitions. [2022-11-25 17:54:39,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 112 transitions, 610 flow [2022-11-25 17:54:39,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:54:39,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 17:54:39,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2118 transitions. [2022-11-25 17:54:39,874 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43366093366093367 [2022-11-25 17:54:39,875 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2118 transitions. [2022-11-25 17:54:39,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2118 transitions. [2022-11-25 17:54:39,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:54:39,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2118 transitions. [2022-11-25 17:54:39,886 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 17:54:39,897 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 17:54:39,901 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 17:54:39,901 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 120 flow. Second operand 12 states and 2118 transitions. [2022-11-25 17:54:39,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 112 transitions, 610 flow [2022-11-25 17:54:39,906 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 17:54:39,909 INFO L231 Difference]: Finished difference. Result has 49 places, 32 transitions, 202 flow [2022-11-25 17:54:39,909 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 17:54:39,910 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -2 predicate places. [2022-11-25 17:54:39,910 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 32 transitions, 202 flow [2022-11-25 17:54:39,912 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 17:54:39,912 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:54:39,912 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:54:39,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:54:40,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:54:40,124 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 17:54:40,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:40,124 INFO L85 PathProgramCache]: Analyzing trace with hash 465616206, now seen corresponding path program 3 times [2022-11-25 17:54:40,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:40,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228983092] [2022-11-25 17:54:40,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:40,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:40,446 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 17:54:40,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:40,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228983092] [2022-11-25 17:54:40,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228983092] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:54:40,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225468391] [2022-11-25 17:54:40,447 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:54:40,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:54:40,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:54:40,449 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:54:40,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 17:54:40,603 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-25 17:54:40,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:54:40,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 17:54:40,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:54:40,666 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 17:54:40,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:54:40,880 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 17:54:40,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225468391] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:54:40,881 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:54:40,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 15 [2022-11-25 17:54:40,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94609494] [2022-11-25 17:54:40,882 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:54:40,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 17:54:40,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:40,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 17:54:40,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:54:40,934 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 407 [2022-11-25 17:54:40,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 32 transitions, 202 flow. Second operand has 15 states, 15 states have (on average 170.53333333333333) internal successors, (2558), 15 states have internal predecessors, (2558), 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 17:54:40,938 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:54:40,938 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 407 [2022-11-25 17:54:40,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:54:41,223 INFO L130 PetriNetUnfolder]: 511/810 cut-off events. [2022-11-25 17:54:41,223 INFO L131 PetriNetUnfolder]: For 2182/2185 co-relation queries the response was YES. [2022-11-25 17:54:41,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2609 conditions, 810 events. 511/810 cut-off events. For 2182/2185 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2499 event pairs, 42 based on Foata normal form. 30/821 useless extension candidates. Maximal degree in co-relation 2593. Up to 182 conditions per place. [2022-11-25 17:54:41,232 INFO L137 encePairwiseOnDemand]: 404/407 looper letters, 112 selfloop transitions, 13 changer transitions 0/130 dead transitions. [2022-11-25 17:54:41,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 130 transitions, 756 flow [2022-11-25 17:54:41,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 17:54:41,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 17:54:41,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2466 transitions. [2022-11-25 17:54:41,242 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4327834327834328 [2022-11-25 17:54:41,242 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2466 transitions. [2022-11-25 17:54:41,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2466 transitions. [2022-11-25 17:54:41,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:54:41,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2466 transitions. [2022-11-25 17:54:41,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 176.14285714285714) internal successors, (2466), 14 states have internal predecessors, (2466), 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 17:54:41,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 407.0) internal successors, (6105), 15 states have internal predecessors, (6105), 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 17:54:41,265 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 407.0) internal successors, (6105), 15 states have internal predecessors, (6105), 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 17:54:41,265 INFO L175 Difference]: Start difference. First operand has 49 places, 32 transitions, 202 flow. Second operand 14 states and 2466 transitions. [2022-11-25 17:54:41,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 130 transitions, 756 flow [2022-11-25 17:54:41,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 130 transitions, 704 flow, removed 21 selfloop flow, removed 5 redundant places. [2022-11-25 17:54:41,276 INFO L231 Difference]: Finished difference. Result has 59 places, 34 transitions, 206 flow [2022-11-25 17:54:41,276 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=14, PETRI_FLOW=206, PETRI_PLACES=59, PETRI_TRANSITIONS=34} [2022-11-25 17:54:41,277 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, 8 predicate places. [2022-11-25 17:54:41,277 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 34 transitions, 206 flow [2022-11-25 17:54:41,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 170.53333333333333) internal successors, (2558), 15 states have internal predecessors, (2558), 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 17:54:41,279 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:54:41,279 INFO L209 CegarLoopForPetriNet]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:54:41,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:54:41,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-25 17:54:41,486 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 17:54:41,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:41,487 INFO L85 PathProgramCache]: Analyzing trace with hash 799241454, now seen corresponding path program 4 times [2022-11-25 17:54:41,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:41,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910979966] [2022-11-25 17:54:41,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:41,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:54:41,542 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:54:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:54:41,630 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:54:41,630 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:54:41,631 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2022-11-25 17:54:41,634 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2022-11-25 17:54:41,634 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2022-11-25 17:54:41,639 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2022-11-25 17:54:41,639 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2022-11-25 17:54:41,640 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2022-11-25 17:54:41,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2022-11-25 17:54:41,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2022-11-25 17:54:41,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2022-11-25 17:54:41,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2022-11-25 17:54:41,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2022-11-25 17:54:41,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2022-11-25 17:54:41,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2022-11-25 17:54:41,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2022-11-25 17:54:41,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2022-11-25 17:54:41,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2022-11-25 17:54:41,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 46 remaining) [2022-11-25 17:54:41,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 46 remaining) [2022-11-25 17:54:41,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2022-11-25 17:54:41,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2022-11-25 17:54:41,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2022-11-25 17:54:41,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2022-11-25 17:54:41,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2022-11-25 17:54:41,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2022-11-25 17:54:41,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2022-11-25 17:54:41,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2022-11-25 17:54:41,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2022-11-25 17:54:41,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2022-11-25 17:54:41,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2022-11-25 17:54:41,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2022-11-25 17:54:41,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2022-11-25 17:54:41,655 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2022-11-25 17:54:41,655 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2022-11-25 17:54:41,655 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2022-11-25 17:54:41,655 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2022-11-25 17:54:41,656 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2022-11-25 17:54:41,656 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2022-11-25 17:54:41,657 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2022-11-25 17:54:41,657 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2022-11-25 17:54:41,657 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2022-11-25 17:54:41,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2022-11-25 17:54:41,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2022-11-25 17:54:41,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2022-11-25 17:54:41,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2022-11-25 17:54:41,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2022-11-25 17:54:41,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2022-11-25 17:54:41,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:54:41,665 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2022-11-25 17:54:41,675 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 17:54:41,675 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:54:41,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:54:41 BasicIcfg [2022-11-25 17:54:41,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:54:41,791 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:54:41,791 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:54:41,792 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:54:41,795 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:54:30" (3/4) ... [2022-11-25 17:54:41,798 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:54:41,798 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:54:41,799 INFO L158 Benchmark]: Toolchain (without parser) took 12893.97ms. Allocated memory was 192.9MB in the beginning and 232.8MB in the end (delta: 39.8MB). Free memory was 158.8MB in the beginning and 106.1MB in the end (delta: 52.7MB). Peak memory consumption was 94.7MB. Max. memory is 16.1GB. [2022-11-25 17:54:41,799 INFO L158 Benchmark]: CDTParser took 0.83ms. Allocated memory is still 142.6MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:54:41,800 INFO L158 Benchmark]: CACSL2BoogieTranslator took 720.24ms. Allocated memory is still 192.9MB. Free memory was 158.8MB in the beginning and 138.6MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 17:54:41,800 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.36ms. Allocated memory is still 192.9MB. Free memory was 137.9MB in the beginning and 136.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:54:41,801 INFO L158 Benchmark]: Boogie Preprocessor took 48.90ms. Allocated memory is still 192.9MB. Free memory was 136.4MB in the beginning and 134.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:54:41,803 INFO L158 Benchmark]: RCFGBuilder took 817.17ms. Allocated memory is still 192.9MB. Free memory was 134.4MB in the beginning and 112.8MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 17:54:41,803 INFO L158 Benchmark]: TraceAbstraction took 11242.07ms. Allocated memory was 192.9MB in the beginning and 232.8MB in the end (delta: 39.8MB). Free memory was 112.0MB in the beginning and 106.1MB in the end (delta: 5.9MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. [2022-11-25 17:54:41,804 INFO L158 Benchmark]: Witness Printer took 7.37ms. Allocated memory is still 232.8MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:54:41,805 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83ms. Allocated memory is still 142.6MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 720.24ms. Allocated memory is still 192.9MB. Free memory was 158.8MB in the beginning and 138.6MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.36ms. Allocated memory is still 192.9MB. Free memory was 137.9MB in the beginning and 136.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.90ms. Allocated memory is still 192.9MB. Free memory was 136.4MB in the beginning and 134.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 817.17ms. Allocated memory is still 192.9MB. Free memory was 134.4MB in the beginning and 112.8MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 11242.07ms. Allocated memory was 192.9MB in the beginning and 232.8MB in the end (delta: 39.8MB). Free memory was 112.0MB in the beginning and 106.1MB in the end (delta: 5.9MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. * Witness Printer took 7.37ms. Allocated memory is still 232.8MB. Free memory is still 106.1MB. 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: 5.8s, 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: 273, independent: 120, independent conditional: 0, independent unconditional: 120, dependent: 153, dependent conditional: 0, dependent unconditional: 153, 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)=235, arg={0:0}, argc=235, argv={236:237}, argv={236:237}, 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)=235, arg={0:0}, arg={0:0}, arg={0:0}, argc=235, argv={236:237}, argv={236:237}, 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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND TRUE 0 x < 12 [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 < 12 [L706] COND FALSE 0 !(x < 12) [L711] 0 return prev; [L723] RET, EXPR 0 fib() [L723] 0 int correct = fib(); [L725] 0 i <= correct VAL [\old(argc)=235, arg={0:0}, arg={0:0}, arg={0:0}, argc=235, argv={236:237}, argv={236:237}, correct=144, cur=233, i=1, id1={3:0}, id2={5:0}, j=1, next=233, p=0, prev=144, q=0, x=12] [L688] 1 p < 5 [L688] COND TRUE 1 p < 5 [L690] EXPR 1 i + j [L690] 1 i = i + j [L688] 1 p++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=2, j=1, next=233, p=1, prev=144, q=0, x=12] [L725] 0 i <= correct VAL [\old(argc)=235, arg={0:0}, arg={0:0}, arg={0:0}, argc=235, argv={236:237}, argv={236:237}, correct=144, cur=233, i=2, id1={3:0}, id2={5:0}, j=1, next=233, p=1, prev=144, q=0, x=12] 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: 10.9s, OverallIterations: 7, TraceHistogramMax: 12, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 466 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 444 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 425 IncrementalHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 4 mSDtfsCounter, 425 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 73 SyntacticMatches, 10 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=206occurred in iteration=6, InterpolantAutomatonStates: 40, 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, 1.2s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 253 SizeOfPredicates, 0 NumberOfNonLiveVariables, 707 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 13 InterpolantComputations, 3 PerfectInterpolantSequences, 1/200 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 17:54:41,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7fae4-d3e5-4ad5-abb8-22b73fe0d918/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