./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-1_2-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505b246f-dcfb-4fa8-afe8-e9bc695f5452/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505b246f-dcfb-4fa8-afe8-e9bc695f5452/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505b246f-dcfb-4fa8-afe8-e9bc695f5452/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505b246f-dcfb-4fa8-afe8-e9bc695f5452/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_2-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505b246f-dcfb-4fa8-afe8-e9bc695f5452/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505b246f-dcfb-4fa8-afe8-e9bc695f5452/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd4c3d19582748238e9ca587d159d6e8fc23db581cd4de03be73dc785992e03f ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:28:53,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:28:53,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:28:53,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:28:53,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:28:53,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:28:53,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:28:53,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:28:53,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:28:53,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:28:53,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:28:53,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:28:53,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:28:53,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:28:53,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:28:53,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:28:53,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:28:53,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:28:53,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:28:53,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:28:53,330 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:28:53,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:28:53,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:28:53,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:28:53,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:28:53,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:28:53,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:28:53,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:28:53,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:28:53,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:28:53,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:28:53,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:28:53,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:28:53,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:28:53,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:28:53,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:28:53,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:28:53,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:28:53,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:28:53,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:28:53,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:28:53,381 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505b246f-dcfb-4fa8-afe8-e9bc695f5452/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:28:53,430 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:28:53,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:28:53,432 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:28:53,432 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:28:53,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:28:53,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:28:53,443 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:28:53,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:28:53,443 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:28:53,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:28:53,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:28:53,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:28:53,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:28:53,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:28:53,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:28:53,447 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:28:53,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:28:53,447 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:28:53,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:28:53,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:28:53,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:28:53,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:28:53,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:28:53,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:28:53,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:28:53,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:28:53,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:28:53,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:28:53,450 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:28:53,451 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:28:53,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:28:53,451 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:28:53,452 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_505b246f-dcfb-4fa8-afe8-e9bc695f5452/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505b246f-dcfb-4fa8-afe8-e9bc695f5452/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd4c3d19582748238e9ca587d159d6e8fc23db581cd4de03be73dc785992e03f [2021-10-28 23:28:53,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:28:53,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:28:53,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:28:53,853 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:28:53,854 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:28:53,855 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505b246f-dcfb-4fa8-afe8-e9bc695f5452/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-races/race-1_2-join.i [2021-10-28 23:28:53,930 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505b246f-dcfb-4fa8-afe8-e9bc695f5452/bin/uautomizer-GMMbpWq8iD/data/750faf6cf/a996b3e19adf42eaa2102564e31981bf/FLAGee9ca038e [2021-10-28 23:28:54,756 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:28:54,760 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505b246f-dcfb-4fa8-afe8-e9bc695f5452/sv-benchmarks/c/ldv-races/race-1_2-join.i [2021-10-28 23:28:54,808 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505b246f-dcfb-4fa8-afe8-e9bc695f5452/bin/uautomizer-GMMbpWq8iD/data/750faf6cf/a996b3e19adf42eaa2102564e31981bf/FLAGee9ca038e [2021-10-28 23:28:54,853 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505b246f-dcfb-4fa8-afe8-e9bc695f5452/bin/uautomizer-GMMbpWq8iD/data/750faf6cf/a996b3e19adf42eaa2102564e31981bf [2021-10-28 23:28:54,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:28:54,862 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:28:54,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:28:54,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:28:54,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:28:54,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:28:54" (1/1) ... [2021-10-28 23:28:54,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a32b6b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:54, skipping insertion in model container [2021-10-28 23:28:54,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:28:54" (1/1) ... [2021-10-28 23:28:54,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:28:54,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:28:55,942 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505b246f-dcfb-4fa8-afe8-e9bc695f5452/sv-benchmarks/c/ldv-races/race-1_2-join.i[76153,76166] [2021-10-28 23:28:55,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:28:55,995 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:28:56,065 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505b246f-dcfb-4fa8-afe8-e9bc695f5452/sv-benchmarks/c/ldv-races/race-1_2-join.i[76153,76166] [2021-10-28 23:28:56,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:28:56,223 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:28:56,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56 WrapperNode [2021-10-28 23:28:56,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:28:56,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:28:56,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:28:56,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:28:56,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56" (1/1) ... [2021-10-28 23:28:56,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56" (1/1) ... [2021-10-28 23:28:56,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:28:56,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:28:56,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:28:56,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:28:56,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56" (1/1) ... [2021-10-28 23:28:56,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56" (1/1) ... [2021-10-28 23:28:56,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56" (1/1) ... [2021-10-28 23:28:56,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56" (1/1) ... [2021-10-28 23:28:56,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56" (1/1) ... [2021-10-28 23:28:56,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56" (1/1) ... [2021-10-28 23:28:56,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56" (1/1) ... [2021-10-28 23:28:56,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:28:56,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:28:56,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:28:56,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:28:56,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56" (1/1) ... [2021-10-28 23:28:56,428 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:28:56,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505b246f-dcfb-4fa8-afe8-e9bc695f5452/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:28:56,458 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505b246f-dcfb-4fa8-afe8-e9bc695f5452/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:28:56,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505b246f-dcfb-4fa8-afe8-e9bc695f5452/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:28:56,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-28 23:28:56,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:28:56,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-28 23:28:56,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:28:56,512 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-28 23:28:56,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:28:56,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:28:56,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:28:56,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:28:56,513 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-28 23:28:56,513 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-28 23:28:56,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:28:56,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:28:56,515 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-28 23:28:57,267 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:28:57,267 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-28 23:28:57,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:28:57 BoogieIcfgContainer [2021-10-28 23:28:57,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:28:57,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:28:57,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:28:57,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:28:57,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:28:54" (1/3) ... [2021-10-28 23:28:57,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e667adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:28:57, skipping insertion in model container [2021-10-28 23:28:57,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:28:56" (2/3) ... [2021-10-28 23:28:57,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e667adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:28:57, skipping insertion in model container [2021-10-28 23:28:57,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:28:57" (3/3) ... [2021-10-28 23:28:57,282 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2021-10-28 23:28:57,288 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 23:28:57,289 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:28:57,289 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-28 23:28:57,289 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 23:28:57,321 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:28:57,322 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:28:57,322 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:28:57,322 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:28:57,322 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:28:57,323 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:28:57,323 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:28:57,323 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:28:57,324 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:28:57,324 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:28:57,324 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:28:57,325 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:28:57,325 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:28:57,325 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:28:57,326 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:28:57,326 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:28:57,330 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:28:57,330 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:28:57,331 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:28:57,331 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:28:57,331 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:28:57,338 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-10-28 23:28:57,398 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:28:57,406 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 [2021-10-28 23:28:57,407 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-28 23:28:57,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 90 transitions, 188 flow [2021-10-28 23:28:57,474 INFO L129 PetriNetUnfolder]: 4/101 cut-off events. [2021-10-28 23:28:57,474 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-28 23:28:57,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 101 events. 4/101 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 140 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 60. Up to 3 conditions per place. [2021-10-28 23:28:57,478 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 90 transitions, 188 flow [2021-10-28 23:28:57,484 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 75 transitions, 156 flow [2021-10-28 23:28:57,494 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-10-28 23:28:57,495 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:28:57,495 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:28:57,496 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, 1, 1, 1, 1, 1] [2021-10-28 23:28:57,497 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-28 23:28:57,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:57,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1260083599, now seen corresponding path program 1 times [2021-10-28 23:28:57,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:57,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95228070] [2021-10-28 23:28:57,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:57,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:58,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:58,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:58,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95228070] [2021-10-28 23:28:58,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95228070] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:28:58,102 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:28:58,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:28:58,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361509323] [2021-10-28 23:28:58,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:28:58,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:28:58,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:28:58,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:28:58,144 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2021-10-28 23:28:58,149 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 75 transitions, 156 flow. Second operand has 5 states, 5 states have (on average 62.2) internal successors, (311), 5 states have internal predecessors, (311), 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) [2021-10-28 23:28:58,150 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:28:58,150 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2021-10-28 23:28:58,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:28:58,270 INFO L129 PetriNetUnfolder]: 3/83 cut-off events. [2021-10-28 23:28:58,271 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-28 23:28:58,271 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 83 events. 3/83 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 1 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 42. Up to 11 conditions per place. [2021-10-28 23:28:58,274 INFO L132 encePairwiseOnDemand]: 78/90 looper letters, 12 selfloop transitions, 11 changer transitions 0/74 dead transitions. [2021-10-28 23:28:58,274 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 74 transitions, 200 flow [2021-10-28 23:28:58,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:28:58,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 23:28:58,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 451 transitions. [2021-10-28 23:28:58,305 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7158730158730159 [2021-10-28 23:28:58,306 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 451 transitions. [2021-10-28 23:28:58,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 451 transitions. [2021-10-28 23:28:58,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:28:58,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 451 transitions. [2021-10-28 23:28:58,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 64.42857142857143) internal successors, (451), 7 states have internal predecessors, (451), 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) [2021-10-28 23:28:58,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 90.0) internal successors, (720), 8 states have internal predecessors, (720), 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) [2021-10-28 23:28:58,342 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 90.0) internal successors, (720), 8 states have internal predecessors, (720), 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) [2021-10-28 23:28:58,345 INFO L186 Difference]: Start difference. First operand has 78 places, 75 transitions, 156 flow. Second operand 7 states and 451 transitions. [2021-10-28 23:28:58,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 74 transitions, 200 flow [2021-10-28 23:28:58,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 74 transitions, 196 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-28 23:28:58,368 INFO L242 Difference]: Finished difference. Result has 80 places, 73 transitions, 178 flow [2021-10-28 23:28:58,371 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=178, PETRI_PLACES=80, PETRI_TRANSITIONS=73} [2021-10-28 23:28:58,372 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 2 predicate places. [2021-10-28 23:28:58,372 INFO L470 AbstractCegarLoop]: Abstraction has has 80 places, 73 transitions, 178 flow [2021-10-28 23:28:58,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.2) internal successors, (311), 5 states have internal predecessors, (311), 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) [2021-10-28 23:28:58,373 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:28:58,374 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, 1, 1, 1, 1] [2021-10-28 23:28:58,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:28:58,376 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-28 23:28:58,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:58,382 INFO L85 PathProgramCache]: Analyzing trace with hash 2003271251, now seen corresponding path program 1 times [2021-10-28 23:28:58,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:58,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301877998] [2021-10-28 23:28:58,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:58,384 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:58,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:58,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:58,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:58,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301877998] [2021-10-28 23:28:58,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301877998] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:28:58,594 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:28:58,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:28:58,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426162245] [2021-10-28 23:28:58,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:28:58,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:28:58,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:28:58,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:28:58,607 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2021-10-28 23:28:58,610 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 73 transitions, 178 flow. Second operand has 5 states, 5 states have (on average 63.2) internal successors, (316), 5 states have internal predecessors, (316), 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) [2021-10-28 23:28:58,610 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:28:58,610 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2021-10-28 23:28:58,611 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:28:58,728 INFO L129 PetriNetUnfolder]: 3/86 cut-off events. [2021-10-28 23:28:58,729 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-10-28 23:28:58,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 86 events. 3/86 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 0 based on Foata normal form. 1/86 useless extension candidates. Maximal degree in co-relation 38. Up to 12 conditions per place. [2021-10-28 23:28:58,730 INFO L132 encePairwiseOnDemand]: 80/90 looper letters, 14 selfloop transitions, 5 changer transitions 6/73 dead transitions. [2021-10-28 23:28:58,731 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 73 transitions, 228 flow [2021-10-28 23:28:58,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:28:58,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 23:28:58,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 449 transitions. [2021-10-28 23:28:58,734 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7126984126984127 [2021-10-28 23:28:58,734 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 449 transitions. [2021-10-28 23:28:58,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 449 transitions. [2021-10-28 23:28:58,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:28:58,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 449 transitions. [2021-10-28 23:28:58,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 64.14285714285714) internal successors, (449), 7 states have internal predecessors, (449), 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) [2021-10-28 23:28:58,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 90.0) internal successors, (720), 8 states have internal predecessors, (720), 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) [2021-10-28 23:28:58,742 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 90.0) internal successors, (720), 8 states have internal predecessors, (720), 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) [2021-10-28 23:28:58,742 INFO L186 Difference]: Start difference. First operand has 80 places, 73 transitions, 178 flow. Second operand 7 states and 449 transitions. [2021-10-28 23:28:58,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 73 transitions, 228 flow [2021-10-28 23:28:58,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 73 transitions, 210 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-10-28 23:28:58,747 INFO L242 Difference]: Finished difference. Result has 79 places, 65 transitions, 152 flow [2021-10-28 23:28:58,748 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=152, PETRI_PLACES=79, PETRI_TRANSITIONS=65} [2021-10-28 23:28:58,749 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, 1 predicate places. [2021-10-28 23:28:58,749 INFO L470 AbstractCegarLoop]: Abstraction has has 79 places, 65 transitions, 152 flow [2021-10-28 23:28:58,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.2) internal successors, (316), 5 states have internal predecessors, (316), 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) [2021-10-28 23:28:58,750 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:28:58,750 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, 1, 1, 1, 1, 1, 1] [2021-10-28 23:28:58,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:28:58,751 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-28 23:28:58,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:58,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1266345919, now seen corresponding path program 1 times [2021-10-28 23:28:58,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:58,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680428388] [2021-10-28 23:28:58,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:58,753 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:28:58,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:28:58,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:28:58,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680428388] [2021-10-28 23:28:58,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680428388] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:28:58,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:28:58,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:28:58,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452856935] [2021-10-28 23:28:58,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:28:58,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:28:58,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:28:58,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:28:58,897 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 90 [2021-10-28 23:28:58,898 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 65 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 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) [2021-10-28 23:28:58,898 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:28:58,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 90 [2021-10-28 23:28:58,899 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:28:58,956 INFO L129 PetriNetUnfolder]: 2/87 cut-off events. [2021-10-28 23:28:58,956 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-28 23:28:58,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 87 events. 2/87 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 105 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 23. Up to 11 conditions per place. [2021-10-28 23:28:58,958 INFO L132 encePairwiseOnDemand]: 85/90 looper letters, 8 selfloop transitions, 5 changer transitions 0/67 dead transitions. [2021-10-28 23:28:58,958 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 67 transitions, 184 flow [2021-10-28 23:28:58,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:28:58,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-28 23:28:58,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2021-10-28 23:28:58,961 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8592592592592593 [2021-10-28 23:28:58,961 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 232 transitions. [2021-10-28 23:28:58,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 232 transitions. [2021-10-28 23:28:58,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:28:58,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 232 transitions. [2021-10-28 23:28:58,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2021-10-28 23:28:58,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 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) [2021-10-28 23:28:58,965 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 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) [2021-10-28 23:28:58,966 INFO L186 Difference]: Start difference. First operand has 79 places, 65 transitions, 152 flow. Second operand 3 states and 232 transitions. [2021-10-28 23:28:58,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 67 transitions, 184 flow [2021-10-28 23:28:58,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 67 transitions, 172 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-10-28 23:28:58,970 INFO L242 Difference]: Finished difference. Result has 71 places, 67 transitions, 172 flow [2021-10-28 23:28:58,971 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=71, PETRI_TRANSITIONS=67} [2021-10-28 23:28:58,971 INFO L334 CegarLoopForPetriNet]: 78 programPoint places, -7 predicate places. [2021-10-28 23:28:58,972 INFO L470 AbstractCegarLoop]: Abstraction has has 71 places, 67 transitions, 172 flow [2021-10-28 23:28:58,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 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) [2021-10-28 23:28:58,972 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:28:58,973 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:28:58,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:28:58,974 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-28 23:28:58,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:28:58,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1016284227, now seen corresponding path program 1 times [2021-10-28 23:28:58,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:28:58,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610374259] [2021-10-28 23:28:58,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:28:58,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:28:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:28:59,018 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:28:59,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:28:59,076 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:28:59,077 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:28:59,078 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:28:59,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:28:59,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:28:59,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:28:59,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 23:28:59,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:28:59,087 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-10-28 23:28:59,093 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 23:28:59,093 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:28:59,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:28:59 BasicIcfg [2021-10-28 23:28:59,139 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:28:59,140 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:28:59,140 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:28:59,141 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:28:59,141 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:28:57" (3/4) ... [2021-10-28 23:28:59,144 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 23:28:59,207 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505b246f-dcfb-4fa8-afe8-e9bc695f5452/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:28:59,208 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:28:59,210 INFO L168 Benchmark]: Toolchain (without parser) took 4346.91 ms. Allocated memory was 113.2 MB in the beginning and 142.6 MB in the end (delta: 29.4 MB). Free memory was 74.1 MB in the beginning and 86.0 MB in the end (delta: -11.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:59,211 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 113.2 MB. Free memory is still 93.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:28:59,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1358.73 ms. Allocated memory is still 113.2 MB. Free memory was 73.8 MB in the beginning and 46.6 MB in the end (delta: 27.3 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:59,212 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.69 ms. Allocated memory is still 113.2 MB. Free memory was 46.6 MB in the beginning and 88.5 MB in the end (delta: -41.9 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:59,213 INFO L168 Benchmark]: Boogie Preprocessor took 87.01 ms. Allocated memory is still 113.2 MB. Free memory was 88.5 MB in the beginning and 86.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:59,214 INFO L168 Benchmark]: RCFGBuilder took 854.57 ms. Allocated memory is still 113.2 MB. Free memory was 86.4 MB in the beginning and 68.1 MB in the end (delta: 18.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:59,215 INFO L168 Benchmark]: TraceAbstraction took 1867.04 ms. Allocated memory was 113.2 MB in the beginning and 142.6 MB in the end (delta: 29.4 MB). Free memory was 68.1 MB in the beginning and 90.2 MB in the end (delta: -22.1 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:59,215 INFO L168 Benchmark]: Witness Printer took 67.51 ms. Allocated memory is still 142.6 MB. Free memory was 90.2 MB in the beginning and 86.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:28:59,231 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 113.2 MB. Free memory is still 93.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1358.73 ms. Allocated memory is still 113.2 MB. Free memory was 73.8 MB in the beginning and 46.6 MB in the end (delta: 27.3 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 98.69 ms. Allocated memory is still 113.2 MB. Free memory was 46.6 MB in the beginning and 88.5 MB in the end (delta: -41.9 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 87.01 ms. Allocated memory is still 113.2 MB. Free memory was 88.5 MB in the beginning and 86.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 854.57 ms. Allocated memory is still 113.2 MB. Free memory was 86.4 MB in the beginning and 68.1 MB in the end (delta: 18.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1867.04 ms. Allocated memory was 113.2 MB in the beginning and 142.6 MB in the end (delta: 29.4 MB). Free memory was 68.1 MB in the beginning and 90.2 MB in the end (delta: -22.1 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. * Witness Printer took 67.51 ms. Allocated memory is still 142.6 MB. Free memory was 90.2 MB in the beginning and 86.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * 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 - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; VAL [t1={7:0}] [L1697] 0 pthread_mutex_t mutex; VAL [mutex={3:0}, t1={7:0}] [L1698] 0 int pdev; VAL [mutex={3:0}, pdev=0, t1={7:0}] [L1709] 0 pdev = 1 VAL [mutex={3:0}, pdev=1, t1={7:0}] [L1695] COND FALSE 0 !(!expression) VAL [mutex={3:0}, pdev=1, t1={7:0}] [L1711] COND TRUE 0 __VERIFIER_nondet_int() VAL [mutex={3:0}, pdev=1, t1={7:0}] [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={3:0}, pdev=1, t1={7:0}] [L1714] 0 pdev = 2 VAL [arg={0:0}, mutex={3:0}, pdev=2, t1={7:0}] [L1702] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1={7:0}] [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1={7:0}] - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1712]: 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, 95 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: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 45 SDtfs, 34 SDslu, 35 SDs, 0 SdLazy, 60 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred in iteration=1, InterpolantAutomatonStates: 17, 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, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 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 RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:28:59,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505b246f-dcfb-4fa8-afe8-e9bc695f5452/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...