./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_e81fe16d-5299-4d45-93ca-1b0ee10d5d97/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81fe16d-5299-4d45-93ca-1b0ee10d5d97/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81fe16d-5299-4d45-93ca-1b0ee10d5d97/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81fe16d-5299-4d45-93ca-1b0ee10d5d97/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81fe16d-5299-4d45-93ca-1b0ee10d5d97/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81fe16d-5299-4d45-93ca-1b0ee10d5d97/bin/uautomizer-ug76WZFUDN --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 e280ea7002eb926faba3195da50aa743246f3289123bb9a1b445dc9aaf8e8f3d --- 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-6b4ec56 [2022-11-20 09:36:46,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:36:46,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:36:46,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:36:46,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:36:46,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:36:46,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:36:46,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:36:46,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:36:46,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:36:46,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:36:46,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:36:46,619 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:36:46,625 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:36:46,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:36:46,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:36:46,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:36:46,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:36:46,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:36:46,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:36:46,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:36:46,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:36:46,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:36:46,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:36:46,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:36:46,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:36:46,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:36:46,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:36:46,669 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:36:46,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:36:46,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:36:46,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:36:46,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:36:46,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:36:46,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:36:46,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:36:46,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:36:46,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:36:46,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:36:46,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:36:46,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:36:46,685 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81fe16d-5299-4d45-93ca-1b0ee10d5d97/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 09:36:46,744 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:36:46,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:36:46,748 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:36:46,748 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:36:46,749 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:36:46,750 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:36:46,750 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:36:46,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:36:46,751 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:36:46,751 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:36:46,753 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:36:46,753 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:36:46,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:36:46,754 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:36:46,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:36:46,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:36:46,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:36:46,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:36:46,755 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 09:36:46,755 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:36:46,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:36:46,756 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:36:46,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:36:46,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:36:46,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:36:46,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:36:46,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:36:46,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:36:46,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:36:46,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:36:46,759 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:36:46,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:36:46,760 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:36:46,760 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:36:46,760 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:36:46,761 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81fe16d-5299-4d45-93ca-1b0ee10d5d97/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81fe16d-5299-4d45-93ca-1b0ee10d5d97/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e280ea7002eb926faba3195da50aa743246f3289123bb9a1b445dc9aaf8e8f3d [2022-11-20 09:36:47,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:36:47,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:36:47,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:36:47,154 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:36:47,155 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:36:47,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81fe16d-5299-4d45-93ca-1b0ee10d5d97/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2022-11-20 09:36:50,660 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:36:51,046 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:36:51,047 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81fe16d-5299-4d45-93ca-1b0ee10d5d97/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2022-11-20 09:36:51,060 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81fe16d-5299-4d45-93ca-1b0ee10d5d97/bin/uautomizer-ug76WZFUDN/data/b2098cd69/77e0eab0ffa848afaeb95a6c9c38451f/FLAG757e7354b [2022-11-20 09:36:51,085 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81fe16d-5299-4d45-93ca-1b0ee10d5d97/bin/uautomizer-ug76WZFUDN/data/b2098cd69/77e0eab0ffa848afaeb95a6c9c38451f [2022-11-20 09:36:51,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:36:51,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:36:51,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:36:51,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:36:51,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:36:51,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:36:51" (1/1) ... [2022-11-20 09:36:51,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4589eca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:51, skipping insertion in model container [2022-11-20 09:36:51,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:36:51" (1/1) ... [2022-11-20 09:36:51,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:36:51,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:36:51,415 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_e81fe16d-5299-4d45-93ca-1b0ee10d5d97/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2022-11-20 09:36:51,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:36:51,435 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:36:51,504 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_e81fe16d-5299-4d45-93ca-1b0ee10d5d97/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2022-11-20 09:36:51,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:36:51,550 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:36:51,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:51 WrapperNode [2022-11-20 09:36:51,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:36:51,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:36:51,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:36:51,552 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:36:51,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:51" (1/1) ... [2022-11-20 09:36:51,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:51" (1/1) ... [2022-11-20 09:36:51,672 INFO L138 Inliner]: procedures = 28, calls = 74, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 661 [2022-11-20 09:36:51,673 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:36:51,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:36:51,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:36:51,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:36:51,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:51" (1/1) ... [2022-11-20 09:36:51,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:51" (1/1) ... [2022-11-20 09:36:51,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:51" (1/1) ... [2022-11-20 09:36:51,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:51" (1/1) ... [2022-11-20 09:36:51,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:51" (1/1) ... [2022-11-20 09:36:51,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:51" (1/1) ... [2022-11-20 09:36:51,810 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:51" (1/1) ... [2022-11-20 09:36:51,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:51" (1/1) ... [2022-11-20 09:36:51,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:36:51,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:36:51,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:36:51,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:36:51,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:51" (1/1) ... [2022-11-20 09:36:51,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:36:51,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81fe16d-5299-4d45-93ca-1b0ee10d5d97/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:36:51,873 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81fe16d-5299-4d45-93ca-1b0ee10d5d97/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:36:51,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81fe16d-5299-4d45-93ca-1b0ee10d5d97/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:36:51,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:36:51,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 09:36:51,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:36:51,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:36:51,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 09:36:51,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 09:36:51,937 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 09:36:51,938 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 09:36:51,938 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 09:36:51,938 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 09:36:51,938 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 09:36:51,939 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 09:36:51,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:36:51,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 09:36:51,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 09:36:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:36:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:36:51,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:36:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:36:51,943 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 09:36:52,207 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:36:52,210 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:36:53,791 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:36:54,458 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:36:54,458 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-11-20 09:36:54,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:36:54 BoogieIcfgContainer [2022-11-20 09:36:54,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:36:54,468 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:36:54,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:36:54,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:36:54,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:36:51" (1/3) ... [2022-11-20 09:36:54,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0d1e0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:36:54, skipping insertion in model container [2022-11-20 09:36:54,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:51" (2/3) ... [2022-11-20 09:36:54,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0d1e0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:36:54, skipping insertion in model container [2022-11-20 09:36:54,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:36:54" (3/3) ... [2022-11-20 09:36:54,479 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2022-11-20 09:36:54,491 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 09:36:54,505 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:36:54,505 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 87 error locations. [2022-11-20 09:36:54,505 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 09:36:54,800 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 09:36:54,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 616 places, 642 transitions, 1308 flow [2022-11-20 09:36:55,293 INFO L130 PetriNetUnfolder]: 36/639 cut-off events. [2022-11-20 09:36:55,293 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 09:36:55,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 652 conditions, 639 events. 36/639 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2039 event pairs, 0 based on Foata normal form. 0/516 useless extension candidates. Maximal degree in co-relation 490. Up to 2 conditions per place. [2022-11-20 09:36:55,316 INFO L82 GeneralOperation]: Start removeDead. Operand has 616 places, 642 transitions, 1308 flow [2022-11-20 09:36:55,338 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 594 places, 619 transitions, 1256 flow [2022-11-20 09:36:55,350 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:36:55,361 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;@58bb630a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:36:55,362 INFO L358 AbstractCegarLoop]: Starting to check reachability of 151 error locations. [2022-11-20 09:36:55,368 INFO L130 PetriNetUnfolder]: 0/28 cut-off events. [2022-11-20 09:36:55,369 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:36:55,370 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:36:55,371 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:36:55,372 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 147 more)] === [2022-11-20 09:36:55,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:36:55,381 INFO L85 PathProgramCache]: Analyzing trace with hash -476637533, now seen corresponding path program 1 times [2022-11-20 09:36:55,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:36:55,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928976993] [2022-11-20 09:36:55,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:36:55,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:36:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:36:55,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:36:55,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:36:55,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928976993] [2022-11-20 09:36:55,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928976993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:36:55,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:36:55,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:36:55,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724301725] [2022-11-20 09:36:55,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:36:55,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:36:55,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:36:55,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:36:55,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:36:55,737 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 568 out of 642 [2022-11-20 09:36:55,748 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 594 places, 619 transitions, 1256 flow. Second operand has 3 states, 3 states have (on average 569.3333333333334) internal successors, (1708), 3 states have internal predecessors, (1708), 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) [2022-11-20 09:36:55,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:36:55,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 568 of 642 [2022-11-20 09:36:55,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:36:57,545 INFO L130 PetriNetUnfolder]: 219/2356 cut-off events. [2022-11-20 09:36:57,546 INFO L131 PetriNetUnfolder]: For 118/130 co-relation queries the response was YES. [2022-11-20 09:36:57,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2651 conditions, 2356 events. 219/2356 cut-off events. For 118/130 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 18075 event pairs, 114 based on Foata normal form. 94/1970 useless extension candidates. Maximal degree in co-relation 1570. Up to 232 conditions per place. [2022-11-20 09:36:57,590 INFO L137 encePairwiseOnDemand]: 594/642 looper letters, 24 selfloop transitions, 2 changer transitions 8/573 dead transitions. [2022-11-20 09:36:57,591 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 573 transitions, 1216 flow [2022-11-20 09:36:57,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:36:57,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:36:57,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1776 transitions. [2022-11-20 09:36:57,620 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9221183800623053 [2022-11-20 09:36:57,621 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1776 transitions. [2022-11-20 09:36:57,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1776 transitions. [2022-11-20 09:36:57,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:36:57,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1776 transitions. [2022-11-20 09:36:57,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 592.0) internal successors, (1776), 3 states have internal predecessors, (1776), 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) [2022-11-20 09:36:57,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 642.0) internal successors, (2568), 4 states have internal predecessors, (2568), 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) [2022-11-20 09:36:57,659 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 642.0) internal successors, (2568), 4 states have internal predecessors, (2568), 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) [2022-11-20 09:36:57,661 INFO L175 Difference]: Start difference. First operand has 594 places, 619 transitions, 1256 flow. Second operand 3 states and 1776 transitions. [2022-11-20 09:36:57,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 568 places, 573 transitions, 1216 flow [2022-11-20 09:36:57,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 562 places, 573 transitions, 1204 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 09:36:57,690 INFO L231 Difference]: Finished difference. Result has 562 places, 565 transitions, 1140 flow [2022-11-20 09:36:57,694 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=642, PETRI_DIFFERENCE_MINUEND_FLOW=1152, PETRI_DIFFERENCE_MINUEND_PLACES=560, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=571, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1140, PETRI_PLACES=562, PETRI_TRANSITIONS=565} [2022-11-20 09:36:57,699 INFO L288 CegarLoopForPetriNet]: 594 programPoint places, -32 predicate places. [2022-11-20 09:36:57,699 INFO L495 AbstractCegarLoop]: Abstraction has has 562 places, 565 transitions, 1140 flow [2022-11-20 09:36:57,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 569.3333333333334) internal successors, (1708), 3 states have internal predecessors, (1708), 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) [2022-11-20 09:36:57,701 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:36:57,702 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:36:57,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:36:57,702 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 147 more)] === [2022-11-20 09:36:57,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:36:57,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1743612450, now seen corresponding path program 1 times [2022-11-20 09:36:57,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:36:57,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980097576] [2022-11-20 09:36:57,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:36:57,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:36:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:36:57,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:36:57,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:36:57,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980097576] [2022-11-20 09:36:57,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980097576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:36:57,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:36:57,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:36:57,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542185638] [2022-11-20 09:36:57,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:36:57,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:36:57,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:36:57,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:36:57,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:36:57,853 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 565 out of 642 [2022-11-20 09:36:57,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 562 places, 565 transitions, 1140 flow. Second operand has 3 states, 3 states have (on average 566.3333333333334) internal successors, (1699), 3 states have internal predecessors, (1699), 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) [2022-11-20 09:36:57,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:36:57,857 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 565 of 642 [2022-11-20 09:36:57,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:36:59,209 INFO L130 PetriNetUnfolder]: 179/2092 cut-off events. [2022-11-20 09:36:59,210 INFO L131 PetriNetUnfolder]: For 16/33 co-relation queries the response was YES. [2022-11-20 09:36:59,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2317 conditions, 2092 events. 179/2092 cut-off events. For 16/33 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 15086 event pairs, 90 based on Foata normal form. 0/1691 useless extension candidates. Maximal degree in co-relation 2280. Up to 203 conditions per place. [2022-11-20 09:36:59,261 INFO L137 encePairwiseOnDemand]: 639/642 looper letters, 27 selfloop transitions, 2 changer transitions 0/564 dead transitions. [2022-11-20 09:36:59,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 555 places, 564 transitions, 1196 flow [2022-11-20 09:36:59,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:36:59,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:36:59,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1725 transitions. [2022-11-20 09:36:59,268 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8956386292834891 [2022-11-20 09:36:59,269 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1725 transitions. [2022-11-20 09:36:59,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1725 transitions. [2022-11-20 09:36:59,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:36:59,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1725 transitions. [2022-11-20 09:36:59,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 575.0) internal successors, (1725), 3 states have internal predecessors, (1725), 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) [2022-11-20 09:36:59,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 642.0) internal successors, (2568), 4 states have internal predecessors, (2568), 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) [2022-11-20 09:36:59,286 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 642.0) internal successors, (2568), 4 states have internal predecessors, (2568), 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) [2022-11-20 09:36:59,286 INFO L175 Difference]: Start difference. First operand has 562 places, 565 transitions, 1140 flow. Second operand 3 states and 1725 transitions. [2022-11-20 09:36:59,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 555 places, 564 transitions, 1196 flow [2022-11-20 09:36:59,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 564 transitions, 1192 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:36:59,303 INFO L231 Difference]: Finished difference. Result has 553 places, 564 transitions, 1138 flow [2022-11-20 09:36:59,304 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=642, PETRI_DIFFERENCE_MINUEND_FLOW=1134, PETRI_DIFFERENCE_MINUEND_PLACES=551, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=564, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=562, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1138, PETRI_PLACES=553, PETRI_TRANSITIONS=564} [2022-11-20 09:36:59,305 INFO L288 CegarLoopForPetriNet]: 594 programPoint places, -41 predicate places. [2022-11-20 09:36:59,306 INFO L495 AbstractCegarLoop]: Abstraction has has 553 places, 564 transitions, 1138 flow [2022-11-20 09:36:59,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 566.3333333333334) internal successors, (1699), 3 states have internal predecessors, (1699), 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) [2022-11-20 09:36:59,308 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:36:59,308 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:36:59,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:36:59,309 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 147 more)] === [2022-11-20 09:36:59,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:36:59,310 INFO L85 PathProgramCache]: Analyzing trace with hash -2108473801, now seen corresponding path program 1 times [2022-11-20 09:36:59,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:36:59,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060936774] [2022-11-20 09:36:59,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:36:59,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:36:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:36:59,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:36:59,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:36:59,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060936774] [2022-11-20 09:36:59,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060936774] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:36:59,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:36:59,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:36:59,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771558088] [2022-11-20 09:36:59,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:36:59,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:36:59,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:36:59,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:36:59,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:36:59,441 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 568 out of 642 [2022-11-20 09:36:59,445 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 564 transitions, 1138 flow. Second operand has 3 states, 3 states have (on average 569.3333333333334) internal successors, (1708), 3 states have internal predecessors, (1708), 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) [2022-11-20 09:36:59,445 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:36:59,445 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 568 of 642 [2022-11-20 09:36:59,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:37:00,325 INFO L130 PetriNetUnfolder]: 138/1860 cut-off events. [2022-11-20 09:37:00,326 INFO L131 PetriNetUnfolder]: For 14/23 co-relation queries the response was YES. [2022-11-20 09:37:00,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2018 conditions, 1860 events. 138/1860 cut-off events. For 14/23 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12605 event pairs, 59 based on Foata normal form. 0/1538 useless extension candidates. Maximal degree in co-relation 1973. Up to 138 conditions per place. [2022-11-20 09:37:00,363 INFO L137 encePairwiseOnDemand]: 636/642 looper letters, 20 selfloop transitions, 1 changer transitions 0/559 dead transitions. [2022-11-20 09:37:00,363 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 550 places, 559 transitions, 1170 flow [2022-11-20 09:37:00,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:37:00,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:37:00,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1730 transitions. [2022-11-20 09:37:00,368 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8982346832814122 [2022-11-20 09:37:00,369 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1730 transitions. [2022-11-20 09:37:00,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1730 transitions. [2022-11-20 09:37:00,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:37:00,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1730 transitions. [2022-11-20 09:37:00,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 576.6666666666666) internal successors, (1730), 3 states have internal predecessors, (1730), 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) [2022-11-20 09:37:00,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 642.0) internal successors, (2568), 4 states have internal predecessors, (2568), 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) [2022-11-20 09:37:00,382 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 642.0) internal successors, (2568), 4 states have internal predecessors, (2568), 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) [2022-11-20 09:37:00,383 INFO L175 Difference]: Start difference. First operand has 553 places, 564 transitions, 1138 flow. Second operand 3 states and 1730 transitions. [2022-11-20 09:37:00,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 550 places, 559 transitions, 1170 flow [2022-11-20 09:37:00,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 548 places, 559 transitions, 1166 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:37:00,394 INFO L231 Difference]: Finished difference. Result has 548 places, 559 transitions, 1126 flow [2022-11-20 09:37:00,396 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=642, PETRI_DIFFERENCE_MINUEND_FLOW=1124, PETRI_DIFFERENCE_MINUEND_PLACES=546, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=559, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1126, PETRI_PLACES=548, PETRI_TRANSITIONS=559} [2022-11-20 09:37:00,396 INFO L288 CegarLoopForPetriNet]: 594 programPoint places, -46 predicate places. [2022-11-20 09:37:00,397 INFO L495 AbstractCegarLoop]: Abstraction has has 548 places, 559 transitions, 1126 flow [2022-11-20 09:37:00,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 569.3333333333334) internal successors, (1708), 3 states have internal predecessors, (1708), 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) [2022-11-20 09:37:00,398 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:37:00,399 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:00,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 09:37:00,399 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 147 more)] === [2022-11-20 09:37:00,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:00,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1756411960, now seen corresponding path program 1 times [2022-11-20 09:37:00,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:00,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332588805] [2022-11-20 09:37:00,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:00,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:00,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:37:00,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:37:00,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332588805] [2022-11-20 09:37:00,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332588805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:00,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:00,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:37:00,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758988347] [2022-11-20 09:37:00,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:00,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:37:00,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:37:00,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:37:00,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:37:00,584 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 562 out of 642 [2022-11-20 09:37:00,587 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 548 places, 559 transitions, 1126 flow. Second operand has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 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) [2022-11-20 09:37:00,587 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:37:00,588 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 562 of 642 [2022-11-20 09:37:00,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:37:04,888 INFO L130 PetriNetUnfolder]: 1903/12614 cut-off events. [2022-11-20 09:37:04,889 INFO L131 PetriNetUnfolder]: For 146/153 co-relation queries the response was YES. [2022-11-20 09:37:05,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14861 conditions, 12614 events. 1903/12614 cut-off events. For 146/153 co-relation queries the response was YES. Maximal size of possible extension queue 345. Compared 153290 event pairs, 1071 based on Foata normal form. 0/10034 useless extension candidates. Maximal degree in co-relation 14817. Up to 2169 conditions per place. [2022-11-20 09:37:05,138 INFO L137 encePairwiseOnDemand]: 639/642 looper letters, 30 selfloop transitions, 2 changer transitions 0/558 dead transitions. [2022-11-20 09:37:05,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 558 transitions, 1188 flow [2022-11-20 09:37:05,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:37:05,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:37:05,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1719 transitions. [2022-11-20 09:37:05,151 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8925233644859814 [2022-11-20 09:37:05,152 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1719 transitions. [2022-11-20 09:37:05,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1719 transitions. [2022-11-20 09:37:05,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:37:05,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1719 transitions. [2022-11-20 09:37:05,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 573.0) internal successors, (1719), 3 states have internal predecessors, (1719), 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) [2022-11-20 09:37:05,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 642.0) internal successors, (2568), 4 states have internal predecessors, (2568), 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) [2022-11-20 09:37:05,168 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 642.0) internal successors, (2568), 4 states have internal predecessors, (2568), 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) [2022-11-20 09:37:05,174 INFO L175 Difference]: Start difference. First operand has 548 places, 559 transitions, 1126 flow. Second operand 3 states and 1719 transitions. [2022-11-20 09:37:05,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 558 transitions, 1188 flow [2022-11-20 09:37:05,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 548 places, 558 transitions, 1187 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:37:05,190 INFO L231 Difference]: Finished difference. Result has 548 places, 558 transitions, 1127 flow [2022-11-20 09:37:05,191 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=642, PETRI_DIFFERENCE_MINUEND_FLOW=1123, PETRI_DIFFERENCE_MINUEND_PLACES=546, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=556, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1127, PETRI_PLACES=548, PETRI_TRANSITIONS=558} [2022-11-20 09:37:05,193 INFO L288 CegarLoopForPetriNet]: 594 programPoint places, -46 predicate places. [2022-11-20 09:37:05,193 INFO L495 AbstractCegarLoop]: Abstraction has has 548 places, 558 transitions, 1127 flow [2022-11-20 09:37:05,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 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) [2022-11-20 09:37:05,195 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:37:05,195 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:05,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 09:37:05,196 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 147 more)] === [2022-11-20 09:37:05,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:05,196 INFO L85 PathProgramCache]: Analyzing trace with hash -761928708, now seen corresponding path program 1 times [2022-11-20 09:37:05,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:05,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320999168] [2022-11-20 09:37:05,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:05,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:06,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:37:06,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:37:06,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320999168] [2022-11-20 09:37:06,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320999168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:06,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:06,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:37:06,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548094758] [2022-11-20 09:37:06,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:06,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:37:06,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:37:06,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:37:06,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:37:06,050 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 439 out of 642 [2022-11-20 09:37:06,053 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 548 places, 558 transitions, 1127 flow. Second operand has 6 states, 6 states have (on average 440.8333333333333) internal successors, (2645), 6 states have internal predecessors, (2645), 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) [2022-11-20 09:37:06,054 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:37:06,054 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 439 of 642 [2022-11-20 09:37:06,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand