./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i --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_3cce0926-afc6-49f7-ab3b-2cb01c3e5640/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cce0926-afc6-49f7-ab3b-2cb01c3e5640/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_3cce0926-afc6-49f7-ab3b-2cb01c3e5640/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cce0926-afc6-49f7-ab3b-2cb01c3e5640/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cce0926-afc6-49f7-ab3b-2cb01c3e5640/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_3cce0926-afc6-49f7-ab3b-2cb01c3e5640/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 cdf629ba70521b99830442583c87012a34d164ca28f01f7e59d76ae2f1e525ff --- 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 09:33:29,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:33:29,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:33:29,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:33:29,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:33:29,764 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:33:29,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:33:29,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:33:29,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:33:29,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:33:29,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:33:29,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:33:29,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:33:29,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:33:29,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:33:29,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:33:29,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:33:29,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:33:29,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:33:29,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:33:29,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:33:29,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:33:29,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:33:29,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:33:29,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:33:29,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:33:29,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:33:29,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:33:29,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:33:29,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:33:29,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:33:29,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:33:29,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:33:29,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:33:29,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:33:29,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:33:29,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:33:29,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:33:29,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:33:29,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:33:29,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:33:29,811 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cce0926-afc6-49f7-ab3b-2cb01c3e5640/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 09:33:29,840 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:33:29,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:33:29,841 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:33:29,842 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:33:29,842 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:33:29,843 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:33:29,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:33:29,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:33:29,844 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:33:29,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:33:29,845 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:33:29,845 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:33:29,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:33:29,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:33:29,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:33:29,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:33:29,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:33:29,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:33:29,847 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 09:33:29,847 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:33:29,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:33:29,848 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:33:29,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:33:29,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:33:29,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:33:29,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:33:29,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:33:29,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:33:29,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:33:29,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:33:29,850 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:33:29,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:33:29,851 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:33:29,851 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:33:29,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:33:29,851 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_3cce0926-afc6-49f7-ab3b-2cb01c3e5640/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cce0926-afc6-49f7-ab3b-2cb01c3e5640/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdf629ba70521b99830442583c87012a34d164ca28f01f7e59d76ae2f1e525ff [2022-11-20 09:33:30,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:33:30,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:33:30,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:33:30,176 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:33:30,177 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:33:30,178 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cce0926-afc6-49f7-ab3b-2cb01c3e5640/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i [2022-11-20 09:33:33,491 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:33:33,794 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:33:33,794 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cce0926-afc6-49f7-ab3b-2cb01c3e5640/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i [2022-11-20 09:33:33,813 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cce0926-afc6-49f7-ab3b-2cb01c3e5640/bin/uautomizer-ug76WZFUDN/data/16e9c656c/8380a4bab2654929abcfac4114bbfb44/FLAG509e75e35 [2022-11-20 09:33:33,830 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cce0926-afc6-49f7-ab3b-2cb01c3e5640/bin/uautomizer-ug76WZFUDN/data/16e9c656c/8380a4bab2654929abcfac4114bbfb44 [2022-11-20 09:33:33,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:33:33,835 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:33:33,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:33:33,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:33:33,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:33:33,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:33:33" (1/1) ... [2022-11-20 09:33:33,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2adbab45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:33, skipping insertion in model container [2022-11-20 09:33:33,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:33:33" (1/1) ... [2022-11-20 09:33:33,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:33:33,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:33:34,310 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_3cce0926-afc6-49f7-ab3b-2cb01c3e5640/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i[30035,30048] [2022-11-20 09:33:34,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:33:34,361 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:33:34,430 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_3cce0926-afc6-49f7-ab3b-2cb01c3e5640/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i[30035,30048] [2022-11-20 09:33:34,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:33:34,507 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:33:34,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:34 WrapperNode [2022-11-20 09:33:34,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:33:34,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:33:34,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:33:34,511 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:33:34,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:34" (1/1) ... [2022-11-20 09:33:34,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:34" (1/1) ... [2022-11-20 09:33:34,603 INFO L138 Inliner]: procedures = 170, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2022-11-20 09:33:34,603 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:33:34,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:33:34,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:33:34,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:33:34,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:34" (1/1) ... [2022-11-20 09:33:34,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:34" (1/1) ... [2022-11-20 09:33:34,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:34" (1/1) ... [2022-11-20 09:33:34,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:34" (1/1) ... [2022-11-20 09:33:34,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:34" (1/1) ... [2022-11-20 09:33:34,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:34" (1/1) ... [2022-11-20 09:33:34,665 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:34" (1/1) ... [2022-11-20 09:33:34,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:34" (1/1) ... [2022-11-20 09:33:34,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:33:34,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:33:34,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:33:34,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:33:34,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:34" (1/1) ... [2022-11-20 09:33:34,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:33:34,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cce0926-afc6-49f7-ab3b-2cb01c3e5640/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:33:34,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cce0926-afc6-49f7-ab3b-2cb01c3e5640/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:33:34,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cce0926-afc6-49f7-ab3b-2cb01c3e5640/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:33:34,760 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-20 09:33:34,760 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-20 09:33:34,760 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-20 09:33:34,761 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-20 09:33:34,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:33:34,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:33:34,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:33:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:33:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:33:34,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:33:34,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:33:34,768 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 09:33:34,916 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:33:34,918 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:33:35,237 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:33:35,249 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:33:35,249 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 09:33:35,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:33:35 BoogieIcfgContainer [2022-11-20 09:33:35,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:33:35,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:33:35,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:33:35,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:33:35,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:33:33" (1/3) ... [2022-11-20 09:33:35,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@433bbed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:33:35, skipping insertion in model container [2022-11-20 09:33:35,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:34" (2/3) ... [2022-11-20 09:33:35,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@433bbed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:33:35, skipping insertion in model container [2022-11-20 09:33:35,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:33:35" (3/3) ... [2022-11-20 09:33:35,263 INFO L112 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-1.i [2022-11-20 09:33:35,274 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 09:33:35,286 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:33:35,287 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-20 09:33:35,287 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 09:33:35,353 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 09:33:35,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 114 transitions, 238 flow [2022-11-20 09:33:35,484 INFO L130 PetriNetUnfolder]: 5/130 cut-off events. [2022-11-20 09:33:35,484 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:33:35,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 130 events. 5/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 173 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 95. Up to 4 conditions per place. [2022-11-20 09:33:35,492 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 114 transitions, 238 flow [2022-11-20 09:33:35,502 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 115 places, 113 transitions, 234 flow [2022-11-20 09:33:35,530 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:33:35,542 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;@688e5ba4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:33:35,543 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-20 09:33:35,565 INFO L130 PetriNetUnfolder]: 0/23 cut-off events. [2022-11-20 09:33:35,565 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:33:35,565 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:33:35,566 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] [2022-11-20 09:33:35,567 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 09:33:35,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:35,575 INFO L85 PathProgramCache]: Analyzing trace with hash 2109176308, now seen corresponding path program 1 times [2022-11-20 09:33:35,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:33:35,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254379263] [2022-11-20 09:33:35,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:35,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:33:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:35,957 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 09:33:35,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:33:35,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254379263] [2022-11-20 09:33:35,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254379263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:33:35,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:33:35,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:33:35,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102977057] [2022-11-20 09:33:35,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:33:35,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:33:35,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:33:36,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:33:36,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:36,021 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 114 [2022-11-20 09:33:36,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 113 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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 09:33:36,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:33:36,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 114 [2022-11-20 09:33:36,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:33:36,123 INFO L130 PetriNetUnfolder]: 22/203 cut-off events. [2022-11-20 09:33:36,123 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-20 09:33:36,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 203 events. 22/203 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 615 event pairs, 21 based on Foata normal form. 28/196 useless extension candidates. Maximal degree in co-relation 210. Up to 57 conditions per place. [2022-11-20 09:33:36,134 INFO L137 encePairwiseOnDemand]: 108/114 looper letters, 14 selfloop transitions, 2 changer transitions 1/108 dead transitions. [2022-11-20 09:33:36,134 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 108 transitions, 256 flow [2022-11-20 09:33:36,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:33:36,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:33:36,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 299 transitions. [2022-11-20 09:33:36,150 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8742690058479532 [2022-11-20 09:33:36,151 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 299 transitions. [2022-11-20 09:33:36,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 299 transitions. [2022-11-20 09:33:36,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:33:36,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 299 transitions. [2022-11-20 09:33:36,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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 09:33:36,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 09:33:36,164 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 09:33:36,166 INFO L175 Difference]: Start difference. First operand has 115 places, 113 transitions, 234 flow. Second operand 3 states and 299 transitions. [2022-11-20 09:33:36,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 108 transitions, 256 flow [2022-11-20 09:33:36,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 108 transitions, 255 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:33:36,175 INFO L231 Difference]: Finished difference. Result has 114 places, 107 transitions, 225 flow [2022-11-20 09:33:36,177 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=225, PETRI_PLACES=114, PETRI_TRANSITIONS=107} [2022-11-20 09:33:36,181 INFO L288 CegarLoopForPetriNet]: 115 programPoint places, -1 predicate places. [2022-11-20 09:33:36,181 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 107 transitions, 225 flow [2022-11-20 09:33:36,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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 09:33:36,182 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:33:36,182 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 09:33:36,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:33:36,183 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 09:33:36,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:36,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1511755711, now seen corresponding path program 1 times [2022-11-20 09:33:36,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:33:36,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618880299] [2022-11-20 09:33:36,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:36,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:33:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:36,323 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 09:33:36,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:33:36,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618880299] [2022-11-20 09:33:36,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618880299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:33:36,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:33:36,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:33:36,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279763139] [2022-11-20 09:33:36,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:33:36,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:33:36,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:33:36,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:33:36,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:36,329 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 114 [2022-11-20 09:33:36,330 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 107 transitions, 225 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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 09:33:36,330 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:33:36,330 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 114 [2022-11-20 09:33:36,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:33:36,422 INFO L130 PetriNetUnfolder]: 22/265 cut-off events. [2022-11-20 09:33:36,423 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 09:33:36,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 265 events. 22/265 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1039 event pairs, 21 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 315. Up to 63 conditions per place. [2022-11-20 09:33:36,426 INFO L137 encePairwiseOnDemand]: 111/114 looper letters, 17 selfloop transitions, 2 changer transitions 0/106 dead transitions. [2022-11-20 09:33:36,427 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 106 transitions, 261 flow [2022-11-20 09:33:36,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:33:36,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:33:36,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2022-11-20 09:33:36,430 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.847953216374269 [2022-11-20 09:33:36,431 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 290 transitions. [2022-11-20 09:33:36,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 290 transitions. [2022-11-20 09:33:36,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:33:36,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 290 transitions. [2022-11-20 09:33:36,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 09:33:36,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 09:33:36,436 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 09:33:36,436 INFO L175 Difference]: Start difference. First operand has 114 places, 107 transitions, 225 flow. Second operand 3 states and 290 transitions. [2022-11-20 09:33:36,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 106 transitions, 261 flow [2022-11-20 09:33:36,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 106 transitions, 257 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:33:36,440 INFO L231 Difference]: Finished difference. Result has 112 places, 106 transitions, 223 flow [2022-11-20 09:33:36,441 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=223, PETRI_PLACES=112, PETRI_TRANSITIONS=106} [2022-11-20 09:33:36,442 INFO L288 CegarLoopForPetriNet]: 115 programPoint places, -3 predicate places. [2022-11-20 09:33:36,442 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 106 transitions, 223 flow [2022-11-20 09:33:36,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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 09:33:36,443 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:33:36,443 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] [2022-11-20 09:33:36,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:33:36,444 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 09:33:36,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:36,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1111145419, now seen corresponding path program 1 times [2022-11-20 09:33:36,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:33:36,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268861170] [2022-11-20 09:33:36,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:36,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:33:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:36,617 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 09:33:36,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:33:36,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268861170] [2022-11-20 09:33:36,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268861170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:33:36,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:33:36,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:33:36,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805833957] [2022-11-20 09:33:36,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:33:36,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:33:36,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:33:36,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:33:36,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:36,622 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 114 [2022-11-20 09:33:36,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 106 transitions, 223 flow. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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 09:33:36,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:33:36,623 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 114 [2022-11-20 09:33:36,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:33:36,692 INFO L130 PetriNetUnfolder]: 11/222 cut-off events. [2022-11-20 09:33:36,692 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 09:33:36,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 222 events. 11/222 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 773 event pairs, 10 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 233. Up to 32 conditions per place. [2022-11-20 09:33:36,696 INFO L137 encePairwiseOnDemand]: 109/114 looper letters, 11 selfloop transitions, 1 changer transitions 0/102 dead transitions. [2022-11-20 09:33:36,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 102 transitions, 239 flow [2022-11-20 09:33:36,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:33:36,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:33:36,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2022-11-20 09:33:36,707 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8625730994152047 [2022-11-20 09:33:36,707 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 295 transitions. [2022-11-20 09:33:36,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 295 transitions. [2022-11-20 09:33:36,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:33:36,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 295 transitions. [2022-11-20 09:33:36,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:33:36,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 09:33:36,714 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 09:33:36,714 INFO L175 Difference]: Start difference. First operand has 112 places, 106 transitions, 223 flow. Second operand 3 states and 295 transitions. [2022-11-20 09:33:36,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 102 transitions, 239 flow [2022-11-20 09:33:36,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 102 transitions, 235 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:33:36,725 INFO L231 Difference]: Finished difference. Result has 108 places, 102 transitions, 213 flow [2022-11-20 09:33:36,726 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=213, PETRI_PLACES=108, PETRI_TRANSITIONS=102} [2022-11-20 09:33:36,729 INFO L288 CegarLoopForPetriNet]: 115 programPoint places, -7 predicate places. [2022-11-20 09:33:36,730 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 102 transitions, 213 flow [2022-11-20 09:33:36,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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 09:33:36,730 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:33:36,731 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] [2022-11-20 09:33:36,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 09:33:36,732 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 09:33:36,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:36,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1102181646, now seen corresponding path program 1 times [2022-11-20 09:33:36,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:33:36,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241208180] [2022-11-20 09:33:36,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:36,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:33:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:36,895 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 09:33:36,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:33:36,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241208180] [2022-11-20 09:33:36,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241208180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:33:36,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:33:36,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:33:36,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513315143] [2022-11-20 09:33:36,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:33:36,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:33:36,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:33:36,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:33:36,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:36,909 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 114 [2022-11-20 09:33:36,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 102 transitions, 213 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 09:33:36,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:33:36,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 114 [2022-11-20 09:33:36,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:33:37,004 INFO L130 PetriNetUnfolder]: 16/211 cut-off events. [2022-11-20 09:33:37,005 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 09:33:37,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 211 events. 16/211 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 645 event pairs, 4 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 233. Up to 29 conditions per place. [2022-11-20 09:33:37,007 INFO L137 encePairwiseOnDemand]: 108/114 looper letters, 14 selfloop transitions, 4 changer transitions 0/107 dead transitions. [2022-11-20 09:33:37,007 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 107 transitions, 262 flow [2022-11-20 09:33:37,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:33:37,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:33:37,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 308 transitions. [2022-11-20 09:33:37,010 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9005847953216374 [2022-11-20 09:33:37,010 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 308 transitions. [2022-11-20 09:33:37,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 308 transitions. [2022-11-20 09:33:37,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:33:37,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 308 transitions. [2022-11-20 09:33:37,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 09:33:37,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 09:33:37,020 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 09:33:37,020 INFO L175 Difference]: Start difference. First operand has 108 places, 102 transitions, 213 flow. Second operand 3 states and 308 transitions. [2022-11-20 09:33:37,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 107 transitions, 262 flow [2022-11-20 09:33:37,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 107 transitions, 261 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:33:37,031 INFO L231 Difference]: Finished difference. Result has 110 places, 104 transitions, 240 flow [2022-11-20 09:33:37,031 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=110, PETRI_TRANSITIONS=104} [2022-11-20 09:33:37,033 INFO L288 CegarLoopForPetriNet]: 115 programPoint places, -5 predicate places. [2022-11-20 09:33:37,034 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 104 transitions, 240 flow [2022-11-20 09:33:37,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 09:33:37,034 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:33:37,035 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] [2022-11-20 09:33:37,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 09:33:37,035 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 09:33:37,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:37,036 INFO L85 PathProgramCache]: Analyzing trace with hash -504095292, now seen corresponding path program 1 times [2022-11-20 09:33:37,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:33:37,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133364081] [2022-11-20 09:33:37,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:37,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:33:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:37,136 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 09:33:37,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:33:37,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133364081] [2022-11-20 09:33:37,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133364081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:33:37,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:33:37,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:33:37,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247734409] [2022-11-20 09:33:37,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:33:37,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:33:37,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:33:37,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:33:37,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:37,140 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 114 [2022-11-20 09:33:37,141 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 104 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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 09:33:37,141 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:33:37,141 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 114 [2022-11-20 09:33:37,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:33:37,215 INFO L130 PetriNetUnfolder]: 20/238 cut-off events. [2022-11-20 09:33:37,215 INFO L131 PetriNetUnfolder]: For 36/38 co-relation queries the response was YES. [2022-11-20 09:33:37,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 238 events. 20/238 cut-off events. For 36/38 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 810 event pairs, 8 based on Foata normal form. 0/223 useless extension candidates. Maximal degree in co-relation 314. Up to 45 conditions per place. [2022-11-20 09:33:37,218 INFO L137 encePairwiseOnDemand]: 109/114 looper letters, 19 selfloop transitions, 4 changer transitions 0/110 dead transitions. [2022-11-20 09:33:37,219 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 110 transitions, 310 flow [2022-11-20 09:33:37,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:33:37,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:33:37,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2022-11-20 09:33:37,221 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8830409356725146 [2022-11-20 09:33:37,221 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 302 transitions. [2022-11-20 09:33:37,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 302 transitions. [2022-11-20 09:33:37,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:33:37,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 302 transitions. [2022-11-20 09:33:37,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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 09:33:37,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 09:33:37,225 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 09:33:37,225 INFO L175 Difference]: Start difference. First operand has 110 places, 104 transitions, 240 flow. Second operand 3 states and 302 transitions. [2022-11-20 09:33:37,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 110 transitions, 310 flow [2022-11-20 09:33:37,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 110 transitions, 298 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:33:37,230 INFO L231 Difference]: Finished difference. Result has 112 places, 107 transitions, 264 flow [2022-11-20 09:33:37,230 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=112, PETRI_TRANSITIONS=107} [2022-11-20 09:33:37,231 INFO L288 CegarLoopForPetriNet]: 115 programPoint places, -3 predicate places. [2022-11-20 09:33:37,231 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 107 transitions, 264 flow [2022-11-20 09:33:37,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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 09:33:37,232 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:33:37,233 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] [2022-11-20 09:33:37,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 09:33:37,233 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 09:33:37,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:37,234 INFO L85 PathProgramCache]: Analyzing trace with hash 15130697, now seen corresponding path program 1 times [2022-11-20 09:33:37,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:33:37,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009848969] [2022-11-20 09:33:37,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:37,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:33:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:37,436 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 09:33:37,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:33:37,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009848969] [2022-11-20 09:33:37,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009848969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:33:37,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:33:37,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:33:37,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600887014] [2022-11-20 09:33:37,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:33:37,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:33:37,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:33:37,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:33:37,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:33:37,442 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 114 [2022-11-20 09:33:37,443 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 107 transitions, 264 flow. Second operand has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:33:37,443 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:33:37,443 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 114 [2022-11-20 09:33:37,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:33:37,562 INFO L130 PetriNetUnfolder]: 4/196 cut-off events. [2022-11-20 09:33:37,562 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-20 09:33:37,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 196 events. 4/196 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 540 event pairs, 1 based on Foata normal form. 1/185 useless extension candidates. Maximal degree in co-relation 228. Up to 14 conditions per place. [2022-11-20 09:33:37,564 INFO L137 encePairwiseOnDemand]: 110/114 looper letters, 11 selfloop transitions, 0 changer transitions 4/110 dead transitions. [2022-11-20 09:33:37,564 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 110 transitions, 300 flow [2022-11-20 09:33:37,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:33:37,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 09:33:37,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 501 transitions. [2022-11-20 09:33:37,567 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8789473684210526 [2022-11-20 09:33:37,567 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 501 transitions. [2022-11-20 09:33:37,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 501 transitions. [2022-11-20 09:33:37,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:33:37,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 501 transitions. [2022-11-20 09:33:37,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 100.2) internal successors, (501), 5 states have internal predecessors, (501), 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 09:33:37,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 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 09:33:37,574 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 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 09:33:37,574 INFO L175 Difference]: Start difference. First operand has 112 places, 107 transitions, 264 flow. Second operand 5 states and 501 transitions. [2022-11-20 09:33:37,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 110 transitions, 300 flow [2022-11-20 09:33:37,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 110 transitions, 292 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:33:37,580 INFO L231 Difference]: Finished difference. Result has 117 places, 106 transitions, 260 flow [2022-11-20 09:33:37,581 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=260, PETRI_PLACES=117, PETRI_TRANSITIONS=106} [2022-11-20 09:33:37,584 INFO L288 CegarLoopForPetriNet]: 115 programPoint places, 2 predicate places. [2022-11-20 09:33:37,584 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 106 transitions, 260 flow [2022-11-20 09:33:37,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:33:37,585 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:33:37,585 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 09:33:37,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 09:33:37,586 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 09:33:37,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:37,587 INFO L85 PathProgramCache]: Analyzing trace with hash 748380215, now seen corresponding path program 1 times [2022-11-20 09:33:37,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:33:37,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044006597] [2022-11-20 09:33:37,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:37,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:33:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:33:37,647 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:33:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:33:37,732 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:33:37,737 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 09:33:37,739 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2022-11-20 09:33:37,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2022-11-20 09:33:37,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2022-11-20 09:33:37,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2022-11-20 09:33:37,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2022-11-20 09:33:37,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2022-11-20 09:33:37,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2022-11-20 09:33:37,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2022-11-20 09:33:37,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2022-11-20 09:33:37,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2022-11-20 09:33:37,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 15 remaining) [2022-11-20 09:33:37,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 15 remaining) [2022-11-20 09:33:37,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2022-11-20 09:33:37,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2022-11-20 09:33:37,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2022-11-20 09:33:37,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 09:33:37,758 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:33:37,774 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 09:33:37,780 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 09:33:37,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:33:37 BasicIcfg [2022-11-20 09:33:37,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 09:33:37,902 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:33:37,902 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:33:37,902 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:33:37,903 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:33:35" (3/4) ... [2022-11-20 09:33:37,906 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 09:33:37,906 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:33:37,907 INFO L158 Benchmark]: Toolchain (without parser) took 4072.63ms. Allocated memory is still 172.0MB. Free memory was 138.2MB in the beginning and 113.7MB in the end (delta: 24.5MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2022-11-20 09:33:37,908 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory is still 93.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:33:37,908 INFO L158 Benchmark]: CACSL2BoogieTranslator took 672.52ms. Allocated memory is still 172.0MB. Free memory was 138.2MB in the beginning and 127.5MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 09:33:37,909 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.23ms. Allocated memory is still 172.0MB. Free memory was 127.5MB in the beginning and 126.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:33:37,909 INFO L158 Benchmark]: Boogie Preprocessor took 64.91ms. Allocated memory is still 172.0MB. Free memory was 125.4MB in the beginning and 124.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:33:37,910 INFO L158 Benchmark]: RCFGBuilder took 582.81ms. Allocated memory is still 172.0MB. Free memory was 124.4MB in the beginning and 109.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 09:33:37,910 INFO L158 Benchmark]: TraceAbstraction took 2645.24ms. Allocated memory is still 172.0MB. Free memory was 108.6MB in the beginning and 113.7MB in the end (delta: -5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:33:37,910 INFO L158 Benchmark]: Witness Printer took 5.10ms. Allocated memory is still 172.0MB. Free memory is still 113.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:33:37,912 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory is still 93.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 672.52ms. Allocated memory is still 172.0MB. Free memory was 138.2MB in the beginning and 127.5MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.23ms. Allocated memory is still 172.0MB. Free memory was 127.5MB in the beginning and 126.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 64.91ms. Allocated memory is still 172.0MB. Free memory was 125.4MB in the beginning and 124.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 582.81ms. Allocated memory is still 172.0MB. Free memory was 124.4MB in the beginning and 109.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2645.24ms. Allocated memory is still 172.0MB. Free memory was 108.6MB in the beginning and 113.7MB in the end (delta: -5.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.10ms. Allocated memory is still 172.0MB. Free memory is still 113.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 693]: Data race detected Data race detected The following path leads to a data race: [L690] 0 volatile int x; VAL [x=0] [L691] 0 volatile int n; VAL [n=0, x=0] [L701] 0 pthread_t t1, t2; VAL [\old(argc)=50, argc=50, argv={54:51}, argv={54:51}, n=0, t1={5:0}, t2={3:0}, x=0] [L702] 0 int i; VAL [\old(argc)=50, argc=50, argv={54:51}, argv={54:51}, n=0, t1={5:0}, t2={3:0}, x=0] [L703] 0 x = 0 VAL [\old(argc)=50, argc=50, argv={54:51}, argv={54:51}, n=0, t1={5:0}, t2={3:0}, x=0] [L704] 0 n = __VERIFIER_nondet_uint() VAL [\old(argc)=50, __VERIFIER_nondet_uint()=39, argc=50, argv={54:51}, argv={54:51}, n=39, n = __VERIFIER_nondet_uint()=53, t1={5:0}, t2={3:0}, x=0] [L705] EXPR 0 n >= 20 VAL [\old(argc)=50, argc=50, argv={54:51}, argv={54:51}, n=39, t1={5:0}, t2={3:0}, x=0] [L705] EXPR 0 n >= 20 && n < 40 VAL [\old(argc)=50, argc=50, argv={54:51}, argv={54:51}, n=39, n >= 20 && n < 40=1, t1={5:0}, t2={3:0}, x=0] [L705] EXPR 0 n < 40 VAL [\old(argc)=50, argc=50, argv={54:51}, argv={54:51}, n=39, n >= 20 && n < 40=1, t1={5:0}, t2={3:0}, x=0] [L705] EXPR 0 n >= 20 && n < 40 VAL [\old(argc)=50, argc=50, argv={54:51}, argv={54:51}, n=39, n >= 20 && n < 40=1, t1={5:0}, t2={3:0}, x=0] [L705] CALL 0 assume_abort_if_not(n >= 20 && n < 40) [L687] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, n=39, x=0] [L705] RET 0 assume_abort_if_not(n >= 20 && n < 40) [L706] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [\old(argc)=50, argc=50, argv={54:51}, argv={54:51}, n=39, pthread_create(&t1, 0, thr1, 0)=6, t1={5:0}, t2={3:0}, x=0] [L693] 1 x < n VAL [arg={0:0}, arg={0:0}, n=39, x=0] [L707] 0 i = 0 VAL [\old(argc)=50, argc=50, argv={54:51}, argv={54:51}, i=0, n=39, t1={5:0}, t2={3:0}, x=0] [L707] 0 i < n VAL [\old(argc)=50, argc=50, argv={54:51}, argv={54:51}, i=0, n=39, t1={5:0}, t2={3:0}, x=0] [L707] COND TRUE 0 i < n VAL [\old(argc)=50, argc=50, argv={54:51}, argv={54:51}, i=0, n=39, t1={5:0}, t2={3:0}, x=0] [L708] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [\old(argc)=50, arg={0:0}, argc=50, argv={54:51}, argv={54:51}, i=0, n=39, pthread_create(&t2, 0, thr2, 0)=7, t1={5:0}, t2={3:0}, x=0] [L696] 2 int t; VAL [arg={0:0}, arg={0:0}, n=39, x=0] [L697] 2 t = x VAL [arg={0:0}, arg={0:0}, n=39, t=0, x=0] [L698] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, n=39, t=0, x=1, x = t + 1=52] [L693] 1 x < n VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, n=39, t=0, x=1, x = t + 1=52] Now there is a data race on ~x~0 between C: x = t + 1 [698] and C: x < n [693] - UnprovableResult [Line: 697]: 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: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: 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 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: 706]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 143 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 81 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 100 IncrementalHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 64 mSDtfsCounter, 100 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=264occurred in iteration=5, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 337 NumberOfCodeBlocks, 337 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 261 ConstructedInterpolants, 0 QuantifiedInterpolants, 279 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-20 09:33:37,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cce0926-afc6-49f7-ab3b-2cb01c3e5640/bin/uautomizer-ug76WZFUDN/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