./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/10-synch_02-thread_nonunique.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00999d39-c21d-4235-bbe5-e6ce55eb4f19/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00999d39-c21d-4235-bbe5-e6ce55eb4f19/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00999d39-c21d-4235-bbe5-e6ce55eb4f19/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00999d39-c21d-4235-bbe5-e6ce55eb4f19/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/10-synch_02-thread_nonunique.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00999d39-c21d-4235-bbe5-e6ce55eb4f19/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00999d39-c21d-4235-bbe5-e6ce55eb4f19/bin/uautomizer-DrprNOufMa --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 2b48d13cab05bc3b998f8de65b383ec2ee92eaa2c6f230f8a23e235950b9a5ba --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 23:21:10,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 23:21:10,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 23:21:10,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 23:21:10,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 23:21:10,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 23:21:10,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 23:21:10,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 23:21:10,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 23:21:10,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 23:21:10,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 23:21:10,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 23:21:10,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 23:21:10,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 23:21:10,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 23:21:10,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 23:21:10,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 23:21:10,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 23:21:10,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 23:21:10,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 23:21:10,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 23:21:10,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 23:21:10,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 23:21:10,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 23:21:10,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 23:21:10,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 23:21:10,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 23:21:10,217 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 23:21:10,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 23:21:10,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 23:21:10,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 23:21:10,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 23:21:10,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 23:21:10,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 23:21:10,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 23:21:10,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 23:21:10,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 23:21:10,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 23:21:10,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 23:21:10,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 23:21:10,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 23:21:10,224 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00999d39-c21d-4235-bbe5-e6ce55eb4f19/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-12-06 23:21:10,241 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 23:21:10,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 23:21:10,241 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 23:21:10,241 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 23:21:10,242 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 23:21:10,242 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 23:21:10,242 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 23:21:10,242 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 23:21:10,243 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 23:21:10,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 23:21:10,243 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 23:21:10,243 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 23:21:10,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 23:21:10,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 23:21:10,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 23:21:10,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 23:21:10,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 23:21:10,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 23:21:10,244 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-12-06 23:21:10,244 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 23:21:10,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 23:21:10,244 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 23:21:10,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 23:21:10,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 23:21:10,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 23:21:10,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 23:21:10,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:21:10,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 23:21:10,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 23:21:10,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 23:21:10,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 23:21:10,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 23:21:10,245 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 23:21:10,245 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 23:21:10,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 23:21:10,246 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 23:21:10,246 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_00999d39-c21d-4235-bbe5-e6ce55eb4f19/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00999d39-c21d-4235-bbe5-e6ce55eb4f19/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b48d13cab05bc3b998f8de65b383ec2ee92eaa2c6f230f8a23e235950b9a5ba [2021-12-06 23:21:10,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 23:21:10,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 23:21:10,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 23:21:10,465 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 23:21:10,465 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 23:21:10,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00999d39-c21d-4235-bbe5-e6ce55eb4f19/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/goblint-regression/10-synch_02-thread_nonunique.i [2021-12-06 23:21:10,512 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00999d39-c21d-4235-bbe5-e6ce55eb4f19/bin/uautomizer-DrprNOufMa/data/abe280370/de0d3632f03240abbd646a65281f161b/FLAG6c01599cd [2021-12-06 23:21:10,929 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 23:21:10,929 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00999d39-c21d-4235-bbe5-e6ce55eb4f19/sv-benchmarks/c/goblint-regression/10-synch_02-thread_nonunique.i [2021-12-06 23:21:10,942 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00999d39-c21d-4235-bbe5-e6ce55eb4f19/bin/uautomizer-DrprNOufMa/data/abe280370/de0d3632f03240abbd646a65281f161b/FLAG6c01599cd [2021-12-06 23:21:11,287 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00999d39-c21d-4235-bbe5-e6ce55eb4f19/bin/uautomizer-DrprNOufMa/data/abe280370/de0d3632f03240abbd646a65281f161b [2021-12-06 23:21:11,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 23:21:11,290 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 23:21:11,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 23:21:11,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 23:21:11,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 23:21:11,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:21:11" (1/1) ... [2021-12-06 23:21:11,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4091525e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:11, skipping insertion in model container [2021-12-06 23:21:11,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:21:11" (1/1) ... [2021-12-06 23:21:11,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 23:21:11,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:21:11,590 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:21:11,596 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 23:21:11,636 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:21:11,680 INFO L208 MainTranslator]: Completed translation [2021-12-06 23:21:11,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:11 WrapperNode [2021-12-06 23:21:11,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 23:21:11,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 23:21:11,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 23:21:11,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 23:21:11,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:11" (1/1) ... [2021-12-06 23:21:11,702 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:11" (1/1) ... [2021-12-06 23:21:11,722 INFO L137 Inliner]: procedures = 259, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2021-12-06 23:21:11,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 23:21:11,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 23:21:11,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 23:21:11,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 23:21:11,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:11" (1/1) ... [2021-12-06 23:21:11,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:11" (1/1) ... [2021-12-06 23:21:11,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:11" (1/1) ... [2021-12-06 23:21:11,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:11" (1/1) ... [2021-12-06 23:21:11,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:11" (1/1) ... [2021-12-06 23:21:11,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:11" (1/1) ... [2021-12-06 23:21:11,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:11" (1/1) ... [2021-12-06 23:21:11,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 23:21:11,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 23:21:11,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 23:21:11,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 23:21:11,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:11" (1/1) ... [2021-12-06 23:21:11,756 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:21:11,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00999d39-c21d-4235-bbe5-e6ce55eb4f19/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:21:11,780 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00999d39-c21d-4235-bbe5-e6ce55eb4f19/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 23:21:11,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00999d39-c21d-4235-bbe5-e6ce55eb4f19/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 23:21:11,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 23:21:11,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 23:21:11,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 23:21:11,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 23:21:11,816 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-06 23:21:11,816 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-06 23:21:11,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 23:21:11,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 23:21:11,818 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-06 23:21:11,902 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 23:21:11,903 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 23:21:11,997 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 23:21:12,003 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 23:21:12,004 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 23:21:12,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:21:12 BoogieIcfgContainer [2021-12-06 23:21:12,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 23:21:12,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 23:21:12,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 23:21:12,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 23:21:12,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 11:21:11" (1/3) ... [2021-12-06 23:21:12,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62ae7dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:21:12, skipping insertion in model container [2021-12-06 23:21:12,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:21:11" (2/3) ... [2021-12-06 23:21:12,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62ae7dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:21:12, skipping insertion in model container [2021-12-06 23:21:12,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:21:12" (3/3) ... [2021-12-06 23:21:12,014 INFO L111 eAbstractionObserver]: Analyzing ICFG 10-synch_02-thread_nonunique.i [2021-12-06 23:21:12,019 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-06 23:21:12,019 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 23:21:12,019 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-06 23:21:12,019 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-06 23:21:12,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,042 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,042 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,042 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,042 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,044 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,044 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,044 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,044 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,044 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,044 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,045 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,045 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,047 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,047 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,048 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,048 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,048 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,050 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-12-06 23:21:12,086 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 23:21:12,091 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 23:21:12,091 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-06 23:21:12,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 56 transitions, 120 flow [2021-12-06 23:21:12,125 INFO L129 PetriNetUnfolder]: 5/79 cut-off events. [2021-12-06 23:21:12,125 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 23:21:12,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 79 events. 5/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 134 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 37. Up to 4 conditions per place. [2021-12-06 23:21:12,128 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 56 transitions, 120 flow [2021-12-06 23:21:12,131 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 56 transitions, 120 flow [2021-12-06 23:21:12,138 INFO L129 PetriNetUnfolder]: 2/42 cut-off events. [2021-12-06 23:21:12,139 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 23:21:12,139 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:21:12,139 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:21:12,140 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-12-06 23:21:12,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:21:12,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1508681915, now seen corresponding path program 1 times [2021-12-06 23:21:12,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:21:12,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061003059] [2021-12-06 23:21:12,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:21:12,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:21:12,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:21:12,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:21:12,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:21:12,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061003059] [2021-12-06 23:21:12,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061003059] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:21:12,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:21:12,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 23:21:12,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811243881] [2021-12-06 23:21:12,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:21:12,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 23:21:12,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:21:12,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 23:21:12,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 23:21:12,331 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 56 [2021-12-06 23:21:12,334 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 56 transitions, 120 flow. Second operand has 2 states, 2 states have (on average 52.5) internal successors, (105), 2 states have internal predecessors, (105), 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) [2021-12-06 23:21:12,334 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:21:12,334 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 56 [2021-12-06 23:21:12,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:21:12,355 INFO L129 PetriNetUnfolder]: 1/75 cut-off events. [2021-12-06 23:21:12,355 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-12-06 23:21:12,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 75 events. 1/75 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 126 event pairs, 0 based on Foata normal form. 4/72 useless extension candidates. Maximal degree in co-relation 4. Up to 3 conditions per place. [2021-12-06 23:21:12,356 INFO L132 encePairwiseOnDemand]: 54/56 looper letters, 2 selfloop transitions, 0 changer transitions 0/54 dead transitions. [2021-12-06 23:21:12,356 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 54 transitions, 120 flow [2021-12-06 23:21:12,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 23:21:12,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-12-06 23:21:12,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 108 transitions. [2021-12-06 23:21:12,365 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9642857142857143 [2021-12-06 23:21:12,366 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 108 transitions. [2021-12-06 23:21:12,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 108 transitions. [2021-12-06 23:21:12,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:21:12,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 108 transitions. [2021-12-06 23:21:12,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 54.0) internal successors, (108), 2 states have internal predecessors, (108), 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) [2021-12-06 23:21:12,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2021-12-06 23:21:12,374 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2021-12-06 23:21:12,375 INFO L186 Difference]: Start difference. First operand has 56 places, 56 transitions, 120 flow. Second operand 2 states and 108 transitions. [2021-12-06 23:21:12,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 54 transitions, 120 flow [2021-12-06 23:21:12,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 54 transitions, 120 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 23:21:12,380 INFO L242 Difference]: Finished difference. Result has 57 places, 54 transitions, 116 flow [2021-12-06 23:21:12,382 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=116, PETRI_PLACES=57, PETRI_TRANSITIONS=54} [2021-12-06 23:21:12,385 INFO L334 CegarLoopForPetriNet]: 56 programPoint places, 1 predicate places. [2021-12-06 23:21:12,385 INFO L470 AbstractCegarLoop]: Abstraction has has 57 places, 54 transitions, 116 flow [2021-12-06 23:21:12,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 52.5) internal successors, (105), 2 states have internal predecessors, (105), 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) [2021-12-06 23:21:12,385 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:21:12,385 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:21:12,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 23:21:12,386 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-12-06 23:21:12,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:21:12,386 INFO L85 PathProgramCache]: Analyzing trace with hash -298772548, now seen corresponding path program 1 times [2021-12-06 23:21:12,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:21:12,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538872303] [2021-12-06 23:21:12,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:21:12,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:21:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:21:12,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:21:12,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:21:12,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538872303] [2021-12-06 23:21:12,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538872303] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:21:12,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:21:12,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:21:12,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105059332] [2021-12-06 23:21:12,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:21:12,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:21:12,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:21:12,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:21:12,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:21:12,438 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 56 [2021-12-06 23:21:12,438 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 54 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2021-12-06 23:21:12,438 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:21:12,439 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 56 [2021-12-06 23:21:12,439 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:21:12,486 INFO L129 PetriNetUnfolder]: 0/66 cut-off events. [2021-12-06 23:21:12,486 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 23:21:12,486 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 66 events. 0/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 0. Up to 17 conditions per place. [2021-12-06 23:21:12,487 INFO L132 encePairwiseOnDemand]: 50/56 looper letters, 26 selfloop transitions, 4 changer transitions 8/64 dead transitions. [2021-12-06 23:21:12,487 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 64 transitions, 200 flow [2021-12-06 23:21:12,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:21:12,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 23:21:12,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 130 transitions. [2021-12-06 23:21:12,489 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7738095238095238 [2021-12-06 23:21:12,489 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 130 transitions. [2021-12-06 23:21:12,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 130 transitions. [2021-12-06 23:21:12,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:21:12,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 130 transitions. [2021-12-06 23:21:12,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2021-12-06 23:21:12,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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) [2021-12-06 23:21:12,492 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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) [2021-12-06 23:21:12,492 INFO L186 Difference]: Start difference. First operand has 57 places, 54 transitions, 116 flow. Second operand 3 states and 130 transitions. [2021-12-06 23:21:12,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 64 transitions, 200 flow [2021-12-06 23:21:12,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 64 transitions, 200 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 23:21:12,495 INFO L242 Difference]: Finished difference. Result has 60 places, 47 transitions, 116 flow [2021-12-06 23:21:12,495 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=60, PETRI_TRANSITIONS=47} [2021-12-06 23:21:12,496 INFO L334 CegarLoopForPetriNet]: 56 programPoint places, 4 predicate places. [2021-12-06 23:21:12,496 INFO L470 AbstractCegarLoop]: Abstraction has has 60 places, 47 transitions, 116 flow [2021-12-06 23:21:12,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2021-12-06 23:21:12,496 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:21:12,496 INFO L254 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] [2021-12-06 23:21:12,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 23:21:12,497 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-12-06 23:21:12,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:21:12,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1391277118, now seen corresponding path program 1 times [2021-12-06 23:21:12,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:21:12,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747766409] [2021-12-06 23:21:12,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:21:12,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:21:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:21:12,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:21:12,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:21:12,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747766409] [2021-12-06 23:21:12,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747766409] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:21:12,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:21:12,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 23:21:12,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107499821] [2021-12-06 23:21:12,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:21:12,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:21:12,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:21:12,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:21:12,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:21:12,533 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 56 [2021-12-06 23:21:12,534 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 47 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2021-12-06 23:21:12,534 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:21:12,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 56 [2021-12-06 23:21:12,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:21:12,549 INFO L129 PetriNetUnfolder]: 0/58 cut-off events. [2021-12-06 23:21:12,549 INFO L130 PetriNetUnfolder]: For 9/13 co-relation queries the response was YES. [2021-12-06 23:21:12,549 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 58 events. 0/58 cut-off events. For 9/13 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 1/57 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-12-06 23:21:12,549 INFO L132 encePairwiseOnDemand]: 53/56 looper letters, 4 selfloop transitions, 2 changer transitions 0/46 dead transitions. [2021-12-06 23:21:12,549 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 46 transitions, 126 flow [2021-12-06 23:21:12,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:21:12,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 23:21:12,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 148 transitions. [2021-12-06 23:21:12,552 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8809523809523809 [2021-12-06 23:21:12,552 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 148 transitions. [2021-12-06 23:21:12,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 148 transitions. [2021-12-06 23:21:12,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:21:12,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 148 transitions. [2021-12-06 23:21:12,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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) [2021-12-06 23:21:12,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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) [2021-12-06 23:21:12,554 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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) [2021-12-06 23:21:12,554 INFO L186 Difference]: Start difference. First operand has 60 places, 47 transitions, 116 flow. Second operand 3 states and 148 transitions. [2021-12-06 23:21:12,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 46 transitions, 126 flow [2021-12-06 23:21:12,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 46 transitions, 118 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 23:21:12,557 INFO L242 Difference]: Finished difference. Result has 52 places, 46 transitions, 110 flow [2021-12-06 23:21:12,557 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=52, PETRI_TRANSITIONS=46} [2021-12-06 23:21:12,557 INFO L334 CegarLoopForPetriNet]: 56 programPoint places, -4 predicate places. [2021-12-06 23:21:12,558 INFO L470 AbstractCegarLoop]: Abstraction has has 52 places, 46 transitions, 110 flow [2021-12-06 23:21:12,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2021-12-06 23:21:12,558 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:21:12,558 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:21:12,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 23:21:12,559 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE] === [2021-12-06 23:21:12,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:21:12,559 INFO L85 PathProgramCache]: Analyzing trace with hash 499314067, now seen corresponding path program 1 times [2021-12-06 23:21:12,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:21:12,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419841314] [2021-12-06 23:21:12,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:21:12,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:21:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:21:12,580 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 23:21:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:21:12,604 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 23:21:12,605 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 23:21:12,605 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 4 remaining) [2021-12-06 23:21:12,607 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 4 remaining) [2021-12-06 23:21:12,607 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2021-12-06 23:21:12,607 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2021-12-06 23:21:12,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 23:21:12,610 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-12-06 23:21:12,612 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-12-06 23:21:12,612 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-12-06 23:21:12,617 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,617 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,617 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,618 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,618 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,618 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,618 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,618 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,618 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,618 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,619 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,620 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,620 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,620 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,621 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,621 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,621 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,622 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,622 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,622 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,622 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,622 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,622 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,622 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,623 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,623 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,623 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,623 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,623 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,623 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,624 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,624 WARN L322 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,624 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,624 WARN L322 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 23:21:12,625 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-12-06 23:21:12,627 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 23:21:12,628 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 23:21:12,628 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-12-06 23:21:12,630 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 67 transitions, 152 flow [2021-12-06 23:21:12,644 INFO L129 PetriNetUnfolder]: 10/144 cut-off events. [2021-12-06 23:21:12,645 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-12-06 23:21:12,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 144 events. 10/144 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 305 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 81. Up to 8 conditions per place. [2021-12-06 23:21:12,646 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 67 transitions, 152 flow [2021-12-06 23:21:12,647 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 67 transitions, 152 flow [2021-12-06 23:21:12,650 INFO L129 PetriNetUnfolder]: 2/42 cut-off events. [2021-12-06 23:21:12,651 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 23:21:12,651 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:21:12,651 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:21:12,651 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2021-12-06 23:21:12,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:21:12,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1987120065, now seen corresponding path program 1 times [2021-12-06 23:21:12,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:21:12,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328597884] [2021-12-06 23:21:12,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:21:12,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:21:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:21:12,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:21:12,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:21:12,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328597884] [2021-12-06 23:21:12,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328597884] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:21:12,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:21:12,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:21:12,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375795884] [2021-12-06 23:21:12,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:21:12,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:21:12,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:21:12,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:21:12,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:21:12,685 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 67 [2021-12-06 23:21:12,686 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 67 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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) [2021-12-06 23:21:12,686 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:21:12,686 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 67 [2021-12-06 23:21:12,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:21:12,747 INFO L129 PetriNetUnfolder]: 2/140 cut-off events. [2021-12-06 23:21:12,748 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-12-06 23:21:12,748 INFO L84 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 140 events. 2/140 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 301 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 47. Up to 47 conditions per place. [2021-12-06 23:21:12,749 INFO L132 encePairwiseOnDemand]: 59/67 looper letters, 36 selfloop transitions, 4 changer transitions 0/81 dead transitions. [2021-12-06 23:21:12,749 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 81 transitions, 266 flow [2021-12-06 23:21:12,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:21:12,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 23:21:12,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 169 transitions. [2021-12-06 23:21:12,751 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8407960199004975 [2021-12-06 23:21:12,751 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 169 transitions. [2021-12-06 23:21:12,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 169 transitions. [2021-12-06 23:21:12,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:21:12,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 169 transitions. [2021-12-06 23:21:12,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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) [2021-12-06 23:21:12,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 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) [2021-12-06 23:21:12,754 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 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) [2021-12-06 23:21:12,754 INFO L186 Difference]: Start difference. First operand has 68 places, 67 transitions, 152 flow. Second operand 3 states and 169 transitions. [2021-12-06 23:21:12,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 81 transitions, 266 flow [2021-12-06 23:21:12,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 81 transitions, 266 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 23:21:12,757 INFO L242 Difference]: Finished difference. Result has 71 places, 67 transitions, 172 flow [2021-12-06 23:21:12,757 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=71, PETRI_TRANSITIONS=67} [2021-12-06 23:21:12,758 INFO L334 CegarLoopForPetriNet]: 68 programPoint places, 3 predicate places. [2021-12-06 23:21:12,758 INFO L470 AbstractCegarLoop]: Abstraction has has 71 places, 67 transitions, 172 flow [2021-12-06 23:21:12,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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) [2021-12-06 23:21:12,759 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:21:12,759 INFO L254 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] [2021-12-06 23:21:12,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 23:21:12,759 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2021-12-06 23:21:12,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:21:12,760 INFO L85 PathProgramCache]: Analyzing trace with hash 849774069, now seen corresponding path program 1 times [2021-12-06 23:21:12,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:21:12,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225951140] [2021-12-06 23:21:12,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:21:12,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:21:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:21:12,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:21:12,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:21:12,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225951140] [2021-12-06 23:21:12,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225951140] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:21:12,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:21:12,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 23:21:12,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415363794] [2021-12-06 23:21:12,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:21:12,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:21:12,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:21:12,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:21:12,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:21:12,795 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 67 [2021-12-06 23:21:12,795 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 67 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2021-12-06 23:21:12,795 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:21:12,795 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 67 [2021-12-06 23:21:12,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:21:12,851 INFO L129 PetriNetUnfolder]: 34/341 cut-off events. [2021-12-06 23:21:12,851 INFO L130 PetriNetUnfolder]: For 88/171 co-relation queries the response was YES. [2021-12-06 23:21:12,853 INFO L84 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 341 events. 34/341 cut-off events. For 88/171 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1698 event pairs, 14 based on Foata normal form. 3/307 useless extension candidates. Maximal degree in co-relation 189. Up to 58 conditions per place. [2021-12-06 23:21:12,855 INFO L132 encePairwiseOnDemand]: 62/67 looper letters, 15 selfloop transitions, 4 changer transitions 0/74 dead transitions. [2021-12-06 23:21:12,855 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 74 transitions, 232 flow [2021-12-06 23:21:12,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:21:12,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 23:21:12,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 179 transitions. [2021-12-06 23:21:12,856 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8905472636815921 [2021-12-06 23:21:12,856 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 179 transitions. [2021-12-06 23:21:12,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 179 transitions. [2021-12-06 23:21:12,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:21:12,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 179 transitions. [2021-12-06 23:21:12,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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) [2021-12-06 23:21:12,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 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) [2021-12-06 23:21:12,858 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 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) [2021-12-06 23:21:12,858 INFO L186 Difference]: Start difference. First operand has 71 places, 67 transitions, 172 flow. Second operand 3 states and 179 transitions. [2021-12-06 23:21:12,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 74 transitions, 232 flow [2021-12-06 23:21:12,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 74 transitions, 228 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 23:21:12,861 INFO L242 Difference]: Finished difference. Result has 74 places, 70 transitions, 198 flow [2021-12-06 23:21:12,861 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=74, PETRI_TRANSITIONS=70} [2021-12-06 23:21:12,862 INFO L334 CegarLoopForPetriNet]: 68 programPoint places, 6 predicate places. [2021-12-06 23:21:12,862 INFO L470 AbstractCegarLoop]: Abstraction has has 74 places, 70 transitions, 198 flow [2021-12-06 23:21:12,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2021-12-06 23:21:12,862 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:21:12,862 INFO L254 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] [2021-12-06 23:21:12,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 23:21:12,862 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2021-12-06 23:21:12,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:21:12,863 INFO L85 PathProgramCache]: Analyzing trace with hash 63309174, now seen corresponding path program 1 times [2021-12-06 23:21:12,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:21:12,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525892133] [2021-12-06 23:21:12,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:21:12,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:21:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:21:12,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:21:12,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:21:12,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525892133] [2021-12-06 23:21:12,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525892133] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 23:21:12,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118334613] [2021-12-06 23:21:12,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:21:12,904 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 23:21:12,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00999d39-c21d-4235-bbe5-e6ce55eb4f19/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:21:12,905 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00999d39-c21d-4235-bbe5-e6ce55eb4f19/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 23:21:12,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00999d39-c21d-4235-bbe5-e6ce55eb4f19/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 23:21:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:21:12,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:21:12,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:21:13,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:21:13,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 23:21:13,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:21:13,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118334613] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 23:21:13,077 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 23:21:13,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-12-06 23:21:13,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395759378] [2021-12-06 23:21:13,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 23:21:13,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 23:21:13,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:21:13,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 23:21:13,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:21:13,079 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 67 [2021-12-06 23:21:13,080 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 70 transitions, 198 flow. Second operand has 10 states, 10 states have (on average 43.2) internal successors, (432), 10 states have internal predecessors, (432), 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) [2021-12-06 23:21:13,080 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:21:13,080 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 67 [2021-12-06 23:21:13,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:21:13,132 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2021-12-06 23:21:13,132 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-12-06 23:21:13,132 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 75 events. 3/75 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 137 event pairs, 1 based on Foata normal form. 2/72 useless extension candidates. Maximal degree in co-relation 75. Up to 9 conditions per place. [2021-12-06 23:21:13,133 INFO L132 encePairwiseOnDemand]: 62/67 looper letters, 10 selfloop transitions, 7 changer transitions 0/52 dead transitions. [2021-12-06 23:21:13,133 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 52 transitions, 180 flow [2021-12-06 23:21:13,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:21:13,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-12-06 23:21:13,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 379 transitions. [2021-12-06 23:21:13,140 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6285240464344942 [2021-12-06 23:21:13,140 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 379 transitions. [2021-12-06 23:21:13,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 379 transitions. [2021-12-06 23:21:13,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:21:13,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 379 transitions. [2021-12-06 23:21:13,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 42.111111111111114) internal successors, (379), 9 states have internal predecessors, (379), 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) [2021-12-06 23:21:13,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 67.0) internal successors, (670), 10 states have internal predecessors, (670), 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) [2021-12-06 23:21:13,144 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 67.0) internal successors, (670), 10 states have internal predecessors, (670), 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) [2021-12-06 23:21:13,145 INFO L186 Difference]: Start difference. First operand has 74 places, 70 transitions, 198 flow. Second operand 9 states and 379 transitions. [2021-12-06 23:21:13,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 52 transitions, 180 flow [2021-12-06 23:21:13,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 52 transitions, 170 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-12-06 23:21:13,147 INFO L242 Difference]: Finished difference. Result has 59 places, 48 transitions, 142 flow [2021-12-06 23:21:13,148 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=142, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2021-12-06 23:21:13,148 INFO L334 CegarLoopForPetriNet]: 68 programPoint places, -9 predicate places. [2021-12-06 23:21:13,148 INFO L470 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 142 flow [2021-12-06 23:21:13,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 43.2) internal successors, (432), 10 states have internal predecessors, (432), 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) [2021-12-06 23:21:13,149 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:21:13,149 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:21:13,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00999d39-c21d-4235-bbe5-e6ce55eb4f19/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 23:21:13,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00999d39-c21d-4235-bbe5-e6ce55eb4f19/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-06 23:21:13,351 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2021-12-06 23:21:13,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:21:13,353 INFO L85 PathProgramCache]: Analyzing trace with hash 25788934, now seen corresponding path program 1 times [2021-12-06 23:21:13,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:21:13,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515839676] [2021-12-06 23:21:13,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:21:13,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:21:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:21:13,465 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 23:21:13,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:21:13,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515839676] [2021-12-06 23:21:13,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515839676] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:21:13,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:21:13,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 23:21:13,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551509626] [2021-12-06 23:21:13,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:21:13,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:21:13,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:21:13,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:21:13,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:21:13,476 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 67 [2021-12-06 23:21:13,478 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2021-12-06 23:21:13,478 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 23:21:13,479 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 67 [2021-12-06 23:21:13,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 23:21:13,526 INFO L129 PetriNetUnfolder]: 19/119 cut-off events. [2021-12-06 23:21:13,526 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2021-12-06 23:21:13,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 119 events. 19/119 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 358 event pairs, 8 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 184. Up to 34 conditions per place. [2021-12-06 23:21:13,528 INFO L132 encePairwiseOnDemand]: 62/67 looper letters, 13 selfloop transitions, 5 changer transitions 0/54 dead transitions. [2021-12-06 23:21:13,529 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 54 transitions, 198 flow [2021-12-06 23:21:13,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:21:13,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 23:21:13,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 175 transitions. [2021-12-06 23:21:13,530 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8706467661691543 [2021-12-06 23:21:13,530 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 175 transitions. [2021-12-06 23:21:13,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 175 transitions. [2021-12-06 23:21:13,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 23:21:13,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 175 transitions. [2021-12-06 23:21:13,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2021-12-06 23:21:13,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 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) [2021-12-06 23:21:13,533 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 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) [2021-12-06 23:21:13,533 INFO L186 Difference]: Start difference. First operand has 59 places, 48 transitions, 142 flow. Second operand 3 states and 175 transitions. [2021-12-06 23:21:13,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 54 transitions, 198 flow [2021-12-06 23:21:13,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 54 transitions, 183 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-12-06 23:21:13,536 INFO L242 Difference]: Finished difference. Result has 58 places, 51 transitions, 163 flow [2021-12-06 23:21:13,536 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=58, PETRI_TRANSITIONS=51} [2021-12-06 23:21:13,537 INFO L334 CegarLoopForPetriNet]: 68 programPoint places, -10 predicate places. [2021-12-06 23:21:13,537 INFO L470 AbstractCegarLoop]: Abstraction has has 58 places, 51 transitions, 163 flow [2021-12-06 23:21:13,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2021-12-06 23:21:13,537 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 23:21:13,537 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:21:13,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 23:21:13,538 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2021-12-06 23:21:13,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:21:13,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1788001667, now seen corresponding path program 1 times [2021-12-06 23:21:13,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:21:13,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617468706] [2021-12-06 23:21:13,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:21:13,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:21:13,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:21:13,550 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 23:21:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:21:13,562 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 23:21:13,562 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 23:21:13,562 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 5 remaining) [2021-12-06 23:21:13,562 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2021-12-06 23:21:13,562 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 5 remaining) [2021-12-06 23:21:13,562 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2021-12-06 23:21:13,563 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2021-12-06 23:21:13,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 23:21:13,563 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-12-06 23:21:13,566 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2021-12-06 23:21:13,566 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 23:21:13,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 11:21:13 BasicIcfg [2021-12-06 23:21:13,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 23:21:13,591 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 23:21:13,591 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 23:21:13,591 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 23:21:13,591 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:21:12" (3/4) ... [2021-12-06 23:21:13,593 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 23:21:13,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 23:21:13,594 INFO L158 Benchmark]: Toolchain (without parser) took 2303.50ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 68.6MB in the end (delta: 13.2MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2021-12-06 23:21:13,594 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 73.4MB. Free memory was 43.9MB in the beginning and 43.9MB in the end (delta: 24.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:21:13,594 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.89ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 77.4MB in the end (delta: 4.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 23:21:13,595 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.66ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 74.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 23:21:13,595 INFO L158 Benchmark]: Boogie Preprocessor took 24.82ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 73.8MB in the end (delta: 875.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 23:21:13,595 INFO L158 Benchmark]: RCFGBuilder took 256.84ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 62.4MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 23:21:13,595 INFO L158 Benchmark]: TraceAbstraction took 1582.87ms. Allocated memory is still 117.4MB. Free memory was 61.8MB in the beginning and 68.6MB in the end (delta: -6.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:21:13,595 INFO L158 Benchmark]: Witness Printer took 2.75ms. Allocated memory is still 117.4MB. Free memory is still 68.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:21:13,597 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 73.4MB. Free memory was 43.9MB in the beginning and 43.9MB in the end (delta: 24.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.89ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 77.4MB in the end (delta: 4.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.66ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 74.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.82ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 73.8MB in the end (delta: 875.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 256.84ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 62.4MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1582.87ms. Allocated memory is still 117.4MB. Free memory was 61.8MB in the beginning and 68.6MB in the end (delta: -6.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.75ms. Allocated memory is still 117.4MB. Free memory is still 68.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 919]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; VAL [myglobal=0] [L923] 0 pthread_t id[10]; VAL [id={2:0}, myglobal=0] [L924] 0 int i; VAL [id={2:0}, myglobal=0] [L925] 0 i=0 VAL [i=0, id={2:0}, myglobal=0] [L925] COND TRUE 0 i<10 VAL [i=0, id={2:0}, myglobal=0] [L926] FCALL, FORK 0 pthread_create(&id[i], ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, i=0, id={2:0}, myglobal=0, pthread_create(&id[i], ((void *)0), t_fun, ((void *)0))=-1] [L919] 1 myglobal=42 VAL [arg={0:0}, arg={0:0}, myglobal=42] [L925] 0 i++ VAL [arg={0:0}, arg={0:0}, i=1, id={2:0}, myglobal=42] [L925] COND TRUE 0 i<10 VAL [arg={0:0}, arg={0:0}, i=1, id={2:0}, myglobal=42] [L926] FCALL, FORK 0 pthread_create(&id[i], ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, arg={0:0}, i=1, id={2:0}, myglobal=42, pthread_create(&id[i], ((void *)0), t_fun, ((void *)0))=0] [L919] 2 myglobal=42 VAL [arg={0:0}, arg={0:0}, myglobal=42, myglobal=42=44] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. - UnprovableResult [Line: 928]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 926]: 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 3 procedures, 64 locations, 4 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: 0.5s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 11 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 74 locations, 5 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: 0.9s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 106 IncrementalHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 27 mSDtfsCounter, 106 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=2, InterpolantAutomatonStates: 18, 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 173 NumberOfCodeBlocks, 173 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 234 SizeOfPredicates, 2 NumberOfNonLiveVariables, 76 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 5/8 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 could not prove your program: unable to determine feasibility of some traces [2021-12-06 23:21:13,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00999d39-c21d-4235-bbe5-e6ce55eb4f19/bin/uautomizer-DrprNOufMa/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